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Eucymatoceras steveni
Taxonomy
Nautilus steveni was named by Karakasch (1907). Its type specimen is LGU 103/104, a shell, and it is a 3D body fossil. Its type locality is Sablu, Crimea (LGU collection), which is in a Barremian marine horizon in Ukraine.
It was recombined as Eucymatoceras steveni by Shimansky (1975).
It was recombined as Eucymatoceras steveni by Shimansky (1975).
Synonymy list
| Year | Name and author |
|---|---|
| 1907 | Nautilus steveni Karakasch p. 30 figs. Pl 2, fig 13; pl 8, fig 12 |
| 1975 | Eucymatoceras steveni Shimansky p. 117 figs. Pl 24, fig 3; pl 26, fig 2 |
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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.
†Eucymatoceras steveni Karakasch 1907
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 57.0 | |||||
| shell diameter | 1 | 96.0 | |||||
| shell inflation | 1 | 7.00 |
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Barremian or 125.77000 to 121.40000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Barremian | Ukraine | Nautilus steveni (165680) | |
| Late/Upper Barremian - Early/Lower Aptian | Turkmenistan | Eucymatoceras steveni (165951) |