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Arctomeekoceras rotundatum
Taxonomy
Meekoceras rotundatum was named by Mojsisovics (1886).
It was recombined as Boreomeekoceras rotundatum by Popov (1961); it was recombined as Arctomeekoceras rotundatum by Kummel (1969), Bychkov et al. (1976), Zakharov (1978), Dagis and Ermakova (1988), Dagis et al. (1996).
It was recombined as Boreomeekoceras rotundatum by Popov (1961); it was recombined as Arctomeekoceras rotundatum by Kummel (1969), Bychkov et al. (1976), Zakharov (1978), Dagis and Ermakova (1988), Dagis et al. (1996).
Synonymy list
| Year | Name and author |
|---|---|
| 1886 | Meekoceras rotundatum Mojsisovics |
| 1961 | Boreomeekoceras rotundatum Popov |
| 1969 | Arctomeekoceras rotundatum Kummel |
| 1976 | Arctomeekoceras rotundatum Bychkov et al. |
| 1978 | Arctomeekoceras rotundatum Zakharov figs. Pl 10, figs 8-14 |
| 1988 | Arctomeekoceras rotundatum Dagis and Ermakova p. 32 figs. Pl 8, figs 5,6; pl 9, figs 1-3 |
| 1996 | Arctomeekoceras rotundatum Dagis et al. p. 98 figs. Pl 54, fig 4 |
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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.
†Arctomeekoceras rotundatum Mojsisovics 1886
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 19.6 | 18.2 | 21.6 | 19.1 | 1.76 | |
| shell diameter | 3 | 37.4 | 36.0 | 40.4 | 36.0 | 2.54 | |
| shell inflation | 3 | 4.26 | 3.90 | 4.50 | 4.40 | 0.321 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Spathian or 248.10000 to 246.70000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian | Russian Federation (Siberia) | Arctomeekoceras rotundatum (72343 72346 72354) | |
| Spathian | Russian Federation | Arctomeekoceras rotundatum (97058 107049 123495 123505) Meekoceras rotundatum (212505) |