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Nuculoceratinae
Taxonomy
Nuculoceratidae was named by Ruzhencev (1957). Its type is Nuculoceras.
It was reranked as the subfamily Nuculoceratinae by Titus (2000) and Furnish et al. (2009).
It was assigned to Neoglyphiocerataceae by Korn (2006); and to Cravenoceratidae by Titus (2000) and Furnish et al. (2009).
It was reranked as the subfamily Nuculoceratinae by Titus (2000) and Furnish et al. (2009).
It was assigned to Neoglyphiocerataceae by Korn (2006); and to Cravenoceratidae by Titus (2000) and Furnish et al. (2009).
Subtaxa
Nuculoceras (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Nuculoceratidae Ruzhencev |
| 2000 | Nuculoceratinae Titus p. 27 |
| 2006 | Nuculoceratidae Korn |
| 2009 | Nuculoceratinae Furnish et al. p. 70 |
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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.
Subfm. †Nuculoceratinae Ruzhencev 1957
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G. †Nuculoceras Bisat 1924
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†Nuculoceras kazakhstanicum Ruzhentsev and Bogoslovskaya 1971
†Nuculoceras nuculum Bisat 1924
†Nuculoceras stellarum Bisat 1932
†Nuculoceras tenuistriatum Demanet 1941
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. L. Titus 2000 | Cravenoceratids with pronounced bifurcating transverse ornament and suture with a narrow ventral lobe, slender, parallel to sub-parallel prongs, and a simple generally elongate-spatulate first lateral lobe. May or may not have longitudinal striae. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Arnsbergian or 326.40000 to 318.10000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Arnsbergian | Kazakhstan | Nuculoceras kazakhstanicum (166863) |