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Janassa unguicula
Taxonomy
Janassa unguicula was named by Eastman (1903). It is a 3D body fossil. Its type locality is Cedar Creek, Atchison shale, which is in a Kasimovian marine shale in Nebraska.
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Janassa unguicula Eastman |
| 1916 | Janassa unguicula Branson p. 646 figs. Pl 2, figs 7-18 |
| 1930 | Janassa unguicula Branson p. 60 figs. Pl 16, figs 4,5 |
| 1933 | Janassa unguicula Branson p. 179 figs. 1.5, 1.6 |
| 1988 | Janassa unguicula Bendix-Almgreen et al. p. 101 |
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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.
†Janassa unguicula Eastman 1903
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Wagner 2023, Carroll 1988 | |||||
Age range: base of the Kasimovian to the top of the Wuchiapingian or 307.00000 to 254.14000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kasimovian | USA (Nebraska) | Janassa unguicula (type locality: 132971) | |
| Roadian | USA (Wyoming) | Janassa unguicula (128880 149345) | |
| Guadalupian | USA (Wyoming) | Janassa unguicula (236340) | |
| Wuchiapingian | USA (Wyoming) | Janassa unguicula (90239 236341) |