AlgaeBase Taxonomic Thesaurus
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  Chromista
      Heterokontophyta
            Coscinodiscophyceae
                    Biddulphiales
                            Biddulphiaceae
                                     Alveoflexus
                                             Alveoflexus firthii
                                     Ancoropsis
                                             Ancoropsis eocenica
                                     Biddulphia
                                             Biddulphia abjecta
                                             Biddulphia acanthoceros
                                             Biddulphia acuta
                                             Biddulphia advena
                                             Biddulphia africana
                                             Biddulphia agulhas
                                             Biddulphia alaskiensis
                                             Biddulphia alternans
                                               Biddulphia alternans var. tenuipunctata
                                               Biddulphia alternans var. variabilis
                                             Biddulphia americana
                                             Biddulphia amphicephala
                                             Biddulphia angulata
                                             Biddulphia antediluviana
                                                   [Odontella antediluviana]
                                                   Biddulphia antediluviana f. pentagona
                                                         [Triceratium antediluvianum f. pentagonum]
                                               Biddulphia antediluviana var. ornata
                                             Biddulphia anthropomorpha
                                             Biddulphia antillarum
                                             Biddulphia antiqua
                                             Biddulphia apiculata
                                             Biddulphia arctica
                                                   Biddulphia arctica f. balaena
                                               Biddulphia arctica var. californica
                                               Biddulphia arctica var. campeachiana
                                               Biddulphia arctica var. kerguelensis
                                               Biddulphia arctica var. montereyi
                                               Biddulphia arctica var. pentagona
                                               Biddulphia arctica var. quadrangularis
                                               Biddulphia arctica var. sexangulata
                                               Biddulphia arctica var. tetragona
                                             Biddulphia areolata
                                             Biddulphia argus
                                             Biddulphia armata
                                             Biddulphia astrolabensis
                                             Biddulphia aurita
                                               Biddulphia aurita var. minuscula
                                               Biddulphia aurita var. orientalis
                                             Biddulphia australis
                                             Biddulphia azorica
                                             Biddulphia baileyii
                                             Biddulphia balaena
                                             Biddulphia balearica
                                             Biddulphia baltzoi
                                             Biddulphia barbadensis
                                             Biddulphia belgicae
                                               Biddulphia belgicae var. lata
                                             Biddulphia biddulphiana
                                                   [Conferva biddulphiana]
                                             Biddulphia bifasciata
                                             Biddulphia bifenestra
                                             Biddulphia biquadrata
                                             Biddulphia birostrata
                                             Biddulphia birostrum
                                             Biddulphia blanda
                                             Biddulphia brachiolata
                                             Biddulphia brevis
                                             Biddulphia brittonia
                                             Biddulphia brittoniana
                                             Biddulphia broeckii
                                             Biddulphia californica
                                             Biddulphia campeachiana
                                             Biddulphia capuzina
                                                   [Biddulphia tuomeyi f. capucina]
                                             Biddulphia caraibica
                                             Biddulphia cayennensis
                                             Biddulphia centralis
                                             Biddulphia chinensis
                                             Biddulphia cingulata
                                             Biddulphia cirrhus
                                             Biddulphia clavulata
                                             Biddulphia clypeolus
                                             Biddulphia concava
                                             Biddulphia condecora
                                             Biddulphia connecta
                                             Biddulphia consimilis
                                             Biddulphia contorta
                                             Biddulphia convexa
                                             Biddulphia convexiuscula
                                             Biddulphia cookiana
                                             Biddulphia cornigera
                                             Biddulphia cornu
                                             Biddulphia cornuta
                                             Biddulphia corpulenta
                                             Biddulphia coruscans
                                             Biddulphia costata
                                             Biddulphia costulata
                                             Biddulphia crassiuscula
                                             Biddulphia crenulata
                                             Biddulphia cretacea
                                             Biddulphia cristata
                                             Biddulphia cruciata
                                             Biddulphia culcitella
                                             Biddulphia curvata
                                             Biddulphia curvinervia
                                             Biddulphia cuspidata
                                             Biddulphia cycloides
                                             Biddulphia cylindrata
                                             Biddulphia cylindrus
                                             Biddulphia decipiens
                                             Biddulphia decorata
                                             Biddulphia decumana
                                             Biddulphia decussta
                                             Biddulphia deodora
                                             Biddulphia discigera
                                             Biddulphia discursa
                                             Biddulphia dissipata
                                             Biddulphia distincta
                                             Biddulphia echinulata
                                             Biddulphia ecornuta
                                             Biddulphia edwardsii
                                             Biddulphia elegans
                                             Biddulphia elegantula
                                               Biddulphia elegantula var. polycystinica
                                               Biddulphia elegantula var. polygibba
                                               Biddulphia elegantula var. sarmatica
                                               Biddulphia elegantula var. subgibbosa
                                             Biddulphia elongata
                                             Biddulphia exacta
                                             Biddulphia eximia
                                             Biddulphia expedita
                                             Biddulphia extensa
                                             Biddulphia falcata
                                             Biddulphia fenestrata
                                             Biddulphia fimbriata
                                             Biddulphia fistulosa
                                             Biddulphia flos
                                               Biddulphia flos var. hebetata
                                             Biddulphia formosa
                                                   Biddulphia formosa f. balaena
                                             Biddulphia fortiana
                                             Biddulphia fossa
                                             Biddulphia fractosa
                                             Biddulphia fragilaria
                                             Biddulphia fragilis
                                             Biddulphia frickei
                                             Biddulphia fulva
                                             Biddulphia gallapagensis
                                             Biddulphia gemina
                                             Biddulphia gigantea
                                             Biddulphia gigas
                                             Biddulphia gladiorum
                                             Biddulphia grandis
                                             Biddulphia grovei
                                             Biddulphia gruendleri
                                             Biddulphia grunowiana
                                             Biddulphia gurowii
                                             Biddulphia hebetata
                                             Biddulphia heibergii
                                             Biddulphia heilpriniana
                                             Biddulphia hemitropa
                                             Biddulphia heteroceros
                                             Biddulphia heteropora
                                             Biddulphia hexagonalis
                                             Biddulphia homala
                                                   Biddulphia homala f. minor
                                             Biddulphia immanis
                                             Biddulphia imperialis
                                             Biddulphia impressa
                                             Biddulphia includens
                                             Biddulphia indica
                                             Biddulphia inelegans
                                               Biddulphia inelegans var. areopora
                                               Biddulphia inelegans var. jucatensis
                                               Biddulphia inelegans var. micropora
                                             Biddulphia inflata
                                               Biddulphia inflata var. recta
                                             Biddulphia informis
                                             Biddulphia infundibuloides
                                             Biddulphia insignis
                                             Biddulphia interrupta
                                             Biddulphia inusitata
                                             Biddulphia inverta
                                             Biddulphia japonica
                                             Biddulphia jimboi
                                             Biddulphia johnsoniana
                                             Biddulphia jucatensis
                                             Biddulphia juncatensis
                                             Biddulphia juncta
                                             Biddulphia kainii
                                             Biddulphia keeleyi
                                             Biddulphia kemnae
                                             Biddulphia lacunosa
                                             Biddulphia laevis
                                                   Biddulphia laevis f. minor
                                               Biddulphia laevis var. minor
                                               Biddulphia laevis var. schmidti
                                             Biddulphia lata
                                             Biddulphia lesdiana
                                             Biddulphia levigata
                                             Biddulphia loczyi
                                             Biddulphia longaeva
                                             Biddulphia longicruris
                                               Biddulphia longicruris var. japonica
                                               Biddulphia longicruris var. leptoceros
                                             Biddulphia longispina
                                             Biddulphia luminosa
                                             Biddulphia lunata
                                             Biddulphia macdonaldii
                                             Biddulphia madagascarensis
                                             Biddulphia mammosa
                                             Biddulphia manca
                                             Biddulphia minutissima
                                             Biddulphia miraculosa
                                             Biddulphia mobilensis
                                               Biddulphia mobilensis var. major
                                               Biddulphia mobilensis var. minor
                                             Biddulphia moholensis
                                             Biddulphia mollis
                                             Biddulphia montereyi
                                             Biddulphia moronensis
                                               Biddulphia moronensis var. nicobarica
                                             Biddulphia multicornis
                                               Biddulphia multicornis var. templum
                                             Biddulphia murrayana
                                             Biddulphia nervata
                                             Biddulphia nitida
                                             Biddulphia nobilis
                                               Biddulphia nobilis var. pentagona
                                             Biddulphia novae-zelandiae
                                             Biddulphia oamaruensis
                                             Biddulphia obliquata
                                               Biddulphia obliquata var. longa
                                               Biddulphia obliquata var. tenuior
                                             Biddulphia obtusa
                                                   Biddulphia obtusa f. anthropomorpha
                                               Biddulphia obtusa var. spinosa
                                               Biddulphia obtusa var. wigandi
                                             Biddulphia orbiculata
                                             Biddulphia ornata
                                                   Biddulphia ornata f. tetragona
                                               Biddulphia ornata var. hirsuta
                                             Biddulphia otto-muelleri
                                               Biddulphia otto-muelleri var. cruciata
                                             Biddulphia ottomullerii
                                               Biddulphia ottomullerii var. rotunda
                                             Biddulphia ovalis
                                             Biddulphia pacifica
                                             Biddulphia pantocsekites
                                             Biddulphia papillata
                                             Biddulphia paradoxa
                                             Biddulphia parallela
                                             Biddulphia parvula
                                             Biddulphia patagoniana
                                             Biddulphia patagonica
                                             Biddulphia patera
                                             Biddulphia pedalis
                                             Biddulphia pelagica
                                             Biddulphia pellucida
                                             Biddulphia penitens
                                             Biddulphia pentacrinus
                                             Biddulphia peragalloi
                                             Biddulphia permagna
                                             Biddulphia petitiana
                                             Biddulphia petitii
                                             Biddulphia petrolia
                                             Biddulphia phallus
                                             Biddulphia picturata
                                             Biddulphia plana
                                             Biddulphia podagrosa
                                             Biddulphia polyacanthos
                                             Biddulphia polymera
                                             Biddulphia polymorpha
                                                   Biddulphia polymorpha f. lata
                                                   Biddulphia polymorpha f. rotunda
                                               Biddulphia polymorpha var. anthropomorpha
                                               Biddulphia polymorpha var. belgicae
                                               Biddulphia polymorpha var. cruciata
                                               Biddulphia polymorpha var. ottomullerii
                                               Biddulphia polymorpha var. van
                                             Biddulphia primordialis
                                               Biddulphia primordialis var. inermis
                                             Biddulphia primordinalis
                                             Biddulphia pulchella
                                               Biddulphia pulchella var. elliptica
                                               Biddulphia pulchella var. grundleri
                                               Biddulphia pulchella var. major
                                               Biddulphia pulchella var. quinquelocularis
                                               Biddulphia pulchella var. septemlocularis
                                               Biddulphia pulchella var. trilocularis
                                             Biddulphia pulverulenta
                                             Biddulphia pumila
                                             Biddulphia punctata
                                               Biddulphia punctata var. belgicae
                                               Biddulphia punctata var. subaurita
                                               Biddulphia punctata var. subtriundulata
                                             Biddulphia pustulata
                                             Biddulphia pygmaea
                                             Biddulphia quadrans
                                             Biddulphia quadricornis
                                             Biddulphia quinquelocularis
                                             Biddulphia radiata
                                             Biddulphia regina
                                               Biddulphia regina var. polygibba
                                             Biddulphia reticulata
                                                   Biddulphia reticulata f. subspinosa
                                                   Biddulphia reticulata f. trigona
                                               Biddulphia reticulata var. inermis
                                               Biddulphia reticulata var. rawsonii
                                               Biddulphia reticulata var. rhombica
                                               Biddulphia reticulata var. trigona
                                             Biddulphia retiformis
                                             Biddulphia reversa
                                             Biddulphia rhombus
                                                   Biddulphia rhombus f. tetragona
                                                         [Biddulphia rhombus var. tetragona]
                                                   Biddulphia rhombus f. trigona
                                               Biddulphia rhombus var. fossilis
                                               Biddulphia rhombus var. trigona
                                             Biddulphia riedyi
                                             Biddulphia rigida
                                                   [Biddulphia tuomeyi f. rigida]
                                             Biddulphia robertsiana
                                             Biddulphia robusta
                                             Biddulphia roperiana
                                                   Biddulphia roperiana f. discigera
                                                   Biddulphia roperiana f. obtusa
                                               Biddulphia roperiana var. coronata
                                               Biddulphia roperiana var. neogradensis
                                               Biddulphia roperiana var. obtusa
                                             Biddulphia rossica
                                             Biddulphia rostrata
                                               Biddulphia rostrata var. alata
                                             Biddulphia rudis
                                             Biddulphia russica
                                             Biddulphia rustica
                                             Biddulphia ruthenica
                                             Biddulphia sanpedroana
                                             Biddulphia sansibarica
                                             Biddulphia saratoviana
                                             Biddulphia schmidtii
                                             Biddulphia schroederiana
                                             Biddulphia scitula
                                             Biddulphia sculpta
                                                   [Trigonium sculptum]
                                             Biddulphia scutellum
                                             Biddulphia scutum
                                             Biddulphia secedens
                                             Biddulphia semicircularis
                                               Biddulphia semicircularis var. ashburyana
                                             Biddulphia separanda
                                             Biddulphia septemlocularis
                                             Biddulphia setigera
                                             Biddulphia shadboltiana
                                             Biddulphia shulzei
                                             Biddulphia simplex
                                             Biddulphia sinuata
                                             Biddulphia sparsepunctata
                                             Biddulphia spicata
                                             Biddulphia spinosa
                                                   [Triceratium serratum]
                                             Biddulphia spinulosa
                                             Biddulphia stipitata
                                             Biddulphia striolata
                                                   [Triceratium striolatum]
                                                   [Trigonium striolatum]
                                             Biddulphia sturtii
                                             Biddulphia subaequa
                                               Biddulphia subaequa var. baltica
                                             Biddulphia subjuncta
                                             Biddulphia sublaevis
                                             Biddulphia suborbicularis
                                             Biddulphia suborbiculata
                                             Biddulphia subquadrata
                                             Biddulphia subrotundata
                                             Biddulphia subsalsa
                                             Biddulphia surirella
                                             Biddulphia suspecta
                                             Biddulphia suzuensis
                                             Biddulphia szurdokpuespoekiensis
                                             Biddulphia tabellariaeformis
                                             Biddulphia tabellarium
                                             Biddulphia tahitianum
                                             Biddulphia tahitiensis
                                             Biddulphia temperei
                                             Biddulphia tenera
                                             Biddulphia tentaculifera
                                             Biddulphia tenuicornis
                                             Biddulphia tenuis
                                             Biddulphia tessellata
                                             Biddulphia testudo
                                             Biddulphia thumii
                                             Biddulphia thuomeyi
                                                   Biddulphia thuomeyi f. cretacea
                                             Biddulphia titiana
                                             Biddulphia tortura
                                             Biddulphia translucida
                                             Biddulphia transversa
                                             Biddulphia tridens
                                             Biddulphia tridentata
                                                   Biddulphia tridentata f. minor
                                               Biddulphia tridentata var. andesitica
                                             Biddulphia tridentula
                                             Biddulphia triloba
                                             Biddulphia trilocularis
                                             Biddulphia trinacria
                                             Biddulphia tripartita
                                             Biddulphia tripos
                                             Biddulphia trisinua
                                             Biddulphia trisulca
                                             Biddulphia tschestnovii
                                             Biddulphia tubulosa
                                             Biddulphia tumescens
                                             Biddulphia tumida
                                               Biddulphia tumida var. peruviana
                                             Biddulphia tuomeyi
                                                   Biddulphia tuomeyi f. aerodynamica
                                                   Biddulphia tuomeyi f. bispina
                                                   Biddulphia tuomeyi f. elongata
                                                   Biddulphia tuomeyi f. margaritifera
                                                   Biddulphia tuomeyi f. tridentata
                                               Biddulphia tuomeyi var. aeocenica
                                               Biddulphia tuomeyi var. boryana
                                               Biddulphia tuomeyi var. breviceps
                                               Biddulphia tuomeyi var. centrospinosa
                                               Biddulphia tuomeyi var. charkoviana
                                               Biddulphia tuomeyi var. contorta
                                               Biddulphia tuomeyi var. distenta
                                               Biddulphia tuomeyi var. elongata
                                               Biddulphia tuomeyi var. ensifera
                                               Biddulphia tuomeyi var. globiceps
                                               Biddulphia tuomeyi var. hungarica
                                               Biddulphia tuomeyi var. media
                                               Biddulphia tuomeyi var. tridentata
                                             Biddulphia turrigera
                                             Biddulphia undulata
                                             Biddulphia undulosa
                                             Biddulphia unifasciata
                                             Biddulphia ursina
                                             Biddulphia van-heurckii
                                                   Biddulphia van-heurckii f. spinosa
                                             Biddulphia varians
                                             Biddulphia vasta
                                             Biddulphia venulosa
                                             Biddulphia verrucosa
                                             Biddulphia vesiculosa
                                                   [Diatoma vesiculosa]
                                             Biddulphia virgata
                                             Biddulphia vitrea
                                             Biddulphia vittata
                                             Biddulphia voigtii
                                             Biddulphia weissei
                                             Biddulphia weissflogii
                                                   Biddulphia weissflogii f. aestiva
                                                   Biddulphia weissflogii f. hiberna
                                             Biddulphia woolmanii
                                             Biddulphia zanzibarica
                                     Biddulphiopsis
                                             Biddulphiopsis membranacea
                                                   [Biddulphia membranacea]
                                             Biddulphiopsis titiana
                                                   [Cerataulus titiana]
                                               Biddulphiopsis titiana var. arlyniana
                                     Euodiella
                                             Euodiella bicornigera
                                             Euodiella biddulphioides
                                             Euodiella cretacea
                                             Euodiella eocenica
                                             Euodiella hendeyi
                                             Euodiella perplexa
                                                   [Biddulphia perplexa]
                                             Euodiella semicircularis
                                             Euodiella tristictia
                                     Hydrosera
                                             Hydrosera triquetra
                                             Hydrosera whampoensis
                                                   [Triceratium whampoense]
                                     Isthmia
                                             Isthmia africana
                                             Isthmia capensis
                                             Isthmia catenata
                                             Isthmia domuslaterariae
                                             Isthmia enervis
                                                   Isthmia enervis f. intermedia
                                               Isthmia enervis var. capensis
                                               Isthmia enervis var. georgica
                                               Isthmia enervis var. gracilis
                                               Isthmia enervis var. japonica
                                               Isthmia enervis var. schmidtii
                                               Isthmia enervis var. subcylindica
                                               Isthmia enervis var. subcylindrica
                                             Isthmia filiformis
                                             Isthmia fortii
                                             Isthmia inermis
                                             Isthmia japonica
                                             Isthmia lindigiana
                                             Isthmia membranacea
                                             Isthmia minima
                                             Isthmia nankoorensis
                                             Isthmia nervosa
                                               Isthmia nervosa var. nankoorensis
                                             Isthmia obliquata
                                               Isthmia obliquata var. tenuior
                                             Isthmia polymorpha
                                             Isthmia reticularis
                                             Isthmia squinaboli
                                               Isthmia squinaboli var. crassior
                                             Isthmia stomatophora
                                             Isthmia szaboi
                                             Isthmia tenuicornis
                                             Isthmia vertebrata
                                             Isthmia vesiculosa
                                             Isthmia vitrea
                                     Leudugeria
                                             Leudugeria epithemioides
                                               Leudugeria epithemioides var. obtusa
                                               Leudugeria epithemioides var. subarcuata
                                             Leudugeria janischiana
                                               Leudugeria janischiana var. brevis
                                               Leudugeria janischiana var. obtusata
                                               Leudugeria janischiana var. subarcuata
                                             Leudugeria janischii
                                                   [Euodia janischii]
                                               Leudugeria janischii var. brevis
                                               Leudugeria janischii var. crenulata
                                               Leudugeria janischii var. subarcuata
                                             Leudugeria thermalis
                                     Lisitzinia
                                             Lisitzinia ornata
                                                   Lisitzinia ornata f. pentagona
                                     Medlinia
                                             Medlinia abyssorum
                                                   [Sheshukovia abyssorum]
                                             Medlinia deciusii
                                             Medlinia duplicata
                                                   [Triceratium duplicatum]
                                                   [Triceratium flos var. duplicatum]
                                             Medlinia fenestrata
                                                   [Triceratium fenestratum]
                                             Medlinia gombosii
                                                   [Triceratium gombosii]
                                             Medlinia mucronata
                                                   [Triceratium mucronatum]
                                             Medlinia pseudoweissei
                                             Medlinia simbirskiana
                                                   [Triceratium cellulosum var. simbirskianum]
                                             Medlinia subundosa
                                             Medlinia sundbyensis
                                                   [Sheshukovia sundbyensis]
                                                   [Triceratium sundbyense]
                                             Medlinia synica
                                                   [Triceratium synicum]
                                             Medlinia uralensis
                                             Medlinia venusta
                                                   [Triceratium venustum]
                                               Medlinia venusta var. costata
                                             Medlinia weissei
                                                   [Triceratium weissei]
                                     Neograya
                                             Neograya argonauta
                                     Neohuttonia
                                             Neohuttonia alternans
                                             Neohuttonia labuani
                                             Neohuttonia reichardtii
                                                   [Cerataulus reichardtii]
                                             Neohuttonia virgata
                                     Pseudotriceratium
                                             Pseudotriceratium adleri
                                             Pseudotriceratium cinnamomeum
                                             Pseudotriceratium fallax
                                             Pseudotriceratium radiosoreticulatum
                                             Pseudotriceratium wallichii
                                                   [Triceratium wallichiii]
                                     Stoermeria
                                             Stoermeria californica
                                             Stoermeria trifoliata
                                                   [Triceratium trifoliatum]
                                     Terpsino‘
                                             Terpsino‘ americana
                                             Terpsino‘ intermedia
                                             Terpsino‘ javanicum
                                             Terpsino‘ musica
                                     Trigonium
                                             Trigonium adspersum
                                             Trigonium alternans
                                             Trigonium arcticum
                                                   Trigonium arcticum f. quadratum
                                                   Trigonium arcticum f. tetragonum
                                               Trigonium arcticum var. californicum
                                               Trigonium arcticum var. kerguelense
                                               Trigonium arcticum var. sexangulatum
                                             Trigonium bicoronatum
                                             Trigonium caelatum
                                             Trigonium cinnamomeum
                                             Trigonium condecorum
                                             Trigonium contumax
                                             Trigonium coscinoides
                                             Trigonium diaphanum
                                             Trigonium dissimile
                                             Trigonium dulce
                                             Trigonium eulensteinii
                                             Trigonium formosum
                                                   Trigonium formosum f. tetragonum
                                               Trigonium formosum var. pentagonalis
                                             Trigonium frauenfeldii
                                             Trigonium geminum
                                             Trigonium glandiferum
                                                   [Triceratium glandiferum]
                                             Trigonium graeffeanum
                                             Trigonium hertleinii
                                             Trigonium heteroporum
                                             Trigonium inelegans
                                             Trigonium inglorium
                                             Trigonium latum
                                               Trigonium latum var. Mann
                                               Trigonium latum var. dissimile
                                             Trigonium membranaceum
                                             Trigonium moronense
                                               Trigonium moronense var. nicobaricum
                                             Trigonium multiplex
                                             Trigonium oamaruense
                                               Trigonium oamaruense var. sparsimpunctatum
                                             Trigonium parallelum
                                             Trigonium pardus
                                             Trigonium planoconcavum
                                             Trigonium radfordianum
                                             Trigonium reticulum
                                                   Trigonium reticulum f. tetragonum
                                             Trigonium rusticum
                                             Trigonium tabellarium
                                             Trigonium trinitas
                                             Trigonium zonulatum