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Isohomoceras praematurum
Taxonomy
Glyphioceras praematura was named by Haug (1898).
It was recombined as Isohomoceras praematurum by Ruzhentsev and Bogoslovskaya (1978).
It was recombined as Isohomoceras praematurum by Ruzhentsev and Bogoslovskaya (1978).
Entered
by M. Clapham on 2015-02-11
Synonymy list
| Year | Name and author |
|---|---|
| 1898 | Glyphioceras praematura Haug p. 98 figs. Pl 1, figs 12, 14, 23 |
| 1978 | Isohomoceras praematurum Ruzhentsev and Bogoslovskaya p. 189 figs. Pl 13, figs 1-5; text-figs 41, 42 |
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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.
†Isohomoceras praematurum Haug 1898
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 14.6 | 4.20 | 36.3 | 15.1 | 12.1 | |
| shell diameter | 7 | 29.9 | 9.60 | 70.5 | 30.7 | 22.9 | |
| shell inflation | 7 | 4.75 | 2.20 | 10.0 | 4.40 | 3.05 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Chokierian or 323.60000 to 322.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chokierian | Kazakhstan | Isohomoceras praematurum (67716) | |
| Chokierian | Russian Federation | Isohomoceras praematurum (67728) |