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Biseptata

Strophomenata - Strophomenida - Sowerbyellidae

Taxonomy
Biseptata was named by Madison (2013).

It was assigned to Anechophragminae by Madison (2013).

Species
B. briani

Synonymy list
YearName and author
2013Biseptata Madison p. 32

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyPlectambonitoideaJones 1928
familySowerbyellidaeOpik 1930
subfamilyAnechophragminae
genusBiseptata

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Biseptata Madison 2013
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†Biseptata briani Madison 2013
Diagnosis
ReferenceDiagnosis
A. A. Madison 2013Shell concavoconvex and small, with maximum width in posterior margin. Pedicle opening covered by convex pseudodeltidium and accreted socket ridges; rudimentary chilidial plates developed. In ventral valve, Vshaped muscle field. In dorsal valve, adductors possibly attached to wellpro nounced hole at the base of accreted socket ridges. Anterior areas of socket ridges bear small crural plates. Pair of central side septa completely separated; bema and platform well developed.