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Trochocyathus crooki
Taxonomy
Trochocyathus crooki was named by Merriam and Turner (1937). Its type specimen is UCMP 33697 and is a 3D body fossil. Its type locality is UCMP loc. A-1315, Fenn Ranch, west of Winters, which is in a Ypresian submarine fan shale in the Capay Formation of California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Trochocyathus crooki Merriam and Turner p. 106 figs. Pl. 5, Figs. 7 - 9 |
| 1943 | Trochocyathus crooki Bentson |
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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.
†Trochocyathus crooki Merriam and Turner 1937
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Ypresian or 56.00000 to 47.80000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | USA (Washington) | Trochocyathus crooki (5544) | |
| Ypresian | USA (California) | Trochocyathus crooki (78721 78723 238131 type locality: 238132) |