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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cylichna secalina
Taxonomy
Cylichna secalina was named by Shumard (1861) [m. kosnik taxon no: 1983].
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1861 | Cylichna secalina Shumard |
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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.
†Cylichna secalina Shumard 1861
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (Montana) | Cylichna secalina (213074) | |
| Late/Upper Campanian | USA (Texas) | Cylichna secalina (7472 7481 7482 7499 7500 7504 7507 7510 7552) | |
| Late/Upper Campanian | USA (Delaware) | Cylichna secalina (6171) | |
| Maastrichtian | USA (Mississippi) | Cylichna secalina (7506 7600) | |
| Maastrichtian | USA (Texas) | Cylichna secalina (7480 7493 7495 7550) | |
| Early/Lower Maastrichtian | USA (Mississippi) | Cylichna secalina (7477 7592 7593) | |
| Early/Lower Maastrichtian | Mexico (Guerrero) | Cylichna secalina (7461) |