| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Biseptata
Taxonomy
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Biseptata Madison p. 32 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. A. Madison 2013 | Shell 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. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009 | |||||