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Aspidoceras atavum
Taxonomy
Ammonites atavus was named by Oppel (1863). It is not extant. Its type specimen is SMNS 62721.
It was recombined as Aspidoceras atavum by Schlegelmilch (1994).
It was recombined as Aspidoceras atavum by Schlegelmilch (1994).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1863 | Ammonites atavus Oppel p. 216 figs. Tab 58, Fig 3a, b |
| 1994 | Aspidoceras atavum Schlegelmilch |
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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.
†Aspidoceras atavum Oppel 1863
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Oxfordian or 161.20000 to 155.70000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Oxfordian | France | Aspidoceras atavum (12305 12306) |