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Attenuatella attenuata
Taxonomy
Crurithyris attenuata was named by Cloud (1944). Its type specimen is YPM S-2745 and is a 3D body fossil. Its type locality is King 20, Beds 5,7, Cerro Wencelao to El Indio, Las Delicias, which is in a Capitanian marine shale/limestone in the La Difunta Formation of Mexico.
It was recombined as Attenuatella attenuata by Stehli (1954), Cooper and Grant (1976).
It was recombined as Attenuatella attenuata by Stehli (1954), Cooper and Grant (1976).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1944 | Crurithyris attenuata Cloud p. 62 figs. Pl 17, figs 22-25 |
| 1954 | Attenuatella attenuata Stehli p. 343 |
| 1976 | Attenuatella attenuata Cooper and Grant p. 2132 figs. Pl 590, figs 32-39 |
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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.
†Attenuatella attenuata Cloud 1944
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Capitanian or 264.28000 to 259.51000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | Mexico (Coahuila) | Crurithyris attenuata (type locality: 62907) |