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Cerasina
Taxonomy
Cerasina was named by Copper (1995) [Sepkoski's age data: S Ldov-l Sepkoski's reference number: 1179]. Its type is Cerasina pycnata.
It was assigned to Lissatrypinae by Copper (1995); to Lissatrypidae by Williams et al. (2002); and to Atrypida by Sepkoski (2002).
It was assigned to Lissatrypinae by Copper (1995); to Lissatrypidae by Williams et al. (2002); and to Atrypida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Cerasina Copper pp. 850 - 851 |
| 2002 | Cerasina Sepkoski |
| 2002 | Cerasina Williams et al. p. 1462 |
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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.
G. †Cerasina Copper 1995
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†Cerasina antiquata Nikiforova 1961
†Cerasina discoidalis Jin et al. 1993
†Cerasina obliquata Hall 1852
†Cerasina pycnata Copper 1995
†Cerasina solitaria Billings 1866
Diagnosis
| Reference | Diagnosis |
|---|---|
| P. Copper 1995 | Medium-sized, biconvex to weakly dorsibicon-vex, smooth, rounded shells; anacline-hypercline area; minute, obscured apical-transapical foramen; weak to strong, narrow, U- to V-shaped fold on anterior commissure; thick shell wall; dorsomedially directed, stubby solid teeth; hinge plate thick; crural bases bulbous; crura curved and short; central jugum simple; spiralia of |