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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Cymatoceras hilli
Taxonomy
Nautilus hilli was named by Shattuck (1903).
It was recombined as Cymatoceras hilli by Kummel (1956) and Mancini (1982).
It was recombined as Cymatoceras hilli by Kummel (1956) and Mancini (1982).
Sister species lacking formal opinion data
Synonymy list
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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.
†Cymatoceras hilli Shattuck 1903
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 6.94 | 3.80 | 9.30 | 8.10 | 2.42 | |
| shell diameter | 4 | 16.0 | 11.4 | 20.2 | 16.9 | 3.96 | |
| shell inflation | 4 | 0.376 | 0.200 | 0.500 | 0.450 | 0.141 |
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Albian to the top of the Early/Lower Cenomanian or 105.30000 to 93.50000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Albian | Mexico (Coahuila de Zaragoza) | Cymatoceras hilli (88629 88630 88631 88632 88635 88636 88637 88638) | |
| Late/Upper Albian | Mexico (Coahuila de Zaragoza) | Cymatoceras hilli (88650) | |
| Early/Lower Cenomanian | USA (Texas) | Cymatoceras hilli (175338 175339) |