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Cymatoceras virgatum
Taxonomy
Nautilus (Cymatoceras) virgatus was named by Spengler (1910). It is a 3D body fossil. Its type locality is Odium, beds with Schloenbachia inflata, which is in an Albian marine limestone in India.
It was recombined as Cymatoceras virgatum by Matsumoto et al. (1984).
It was recombined as Cymatoceras virgatum by Matsumoto et al. (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Nautilus (Cymatoceras) virgatus Spengler p. 130 figs. Pl 11, fig 3; pl 12, fig 7c |
| 1984 | Cymatoceras virgatum Matsumoto et al. p. 336 figs. Pl 62, fig 1; pl 63, fig 1; pl 64, fig 1 |
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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 virgatum Spengler 1910
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 80.3 | 69.0 | 90.0 | 83.5 | 10.8 | |
| shell diameter | 3 | 135.4 | 119.0 | 145.0 | 144.0 | 14.7 | |
| shell inflation | 3 | 0.458 | 0.001 | 12.0 | 8.00 | 6.11 |
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009, Kiessling 2003 | |||||
Age range: Late/Upper Albian or 106.30000 to 100.50000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Albian | Japan | Cymatoceras virgatum (166261 166262) | |
| Albian | Antarctica | Cymatoceras virgatum (83557) | |
| Late/Upper Albian | India | Nautilus virgatus (166270) |