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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 Atrypida by Sepkoski (2002); and to Lissatrypidae by Williams et al. (2002).
It was assigned to Lissatrypinae by Copper (1995); to Atrypida by Sepkoski (2002); and to Lissatrypidae by Williams et al. (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 |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Rhuddanian to the top of the Telychian or 443.40000 to 433.40000 Ma
Collections (29 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhuddanian | Canada (Quebec) | C. sp. (113333) | |
| Rhuddanian - Aeronian | Russian Federation (Siberia) | Septatrypa antiquata (206465 206484 206542 206543 206560) | |
| Telychian | Canada (Ontario) | Meifodia discoidalis (77263 77325 77326 77327 77330 77335 77345) | |
| Telychian | Canada (Nunavut) | Meifodia discoidalis (77341 77342 163998 163999 164000 164001 164003 184875 184876 184877 184878 184885 184886 184889 184891 184894) |