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Perisphinctes variocostatus
Taxonomy
Ammonites variocostatus was named by Buckland (1836).
It was recombined as Perisphinctes variocostatus by Douvillé (1916).
It was recombined as Perisphinctes variocostatus by Douvillé (1916).
Sister species lacking formal opinion data
P. africanus, P. andium, P. mairei-matheyi, P. malinowskae, P. panderi, P. polygyratus, P. praestenocyclus, P. progeron, P. quadratus, P. scythicus, P. siemiradzkii, P. eucostatus, P. quadratus, P. pickeringius, P. buckmani, P. buckmanni, P. luciaeformis, P. crassissimus, P. A, P. B, P. anguiculus, P. patturatensis, P. siemirazkii, P. roedereri, P. alatus, P. andelotensis, P. densecostatus, P. pumilus, P. dorsoplanus, P. dacquei, P. polygyratus
Synonymy list
| Year | Name and author |
|---|---|
| 1836 | Ammonites variocostatus Buckland |
| 1916 | Perisphinctes variocostatus Douvillé p. 69 figs. Pl. 8, Fig. 2-3 |
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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.
†Perisphinctes variocostatus Buckland 1836
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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: base of the Middle Oxfordian to the top of the Oxfordian or 161.20000 to 157.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Oxfordian | Egypt | Perisphinctes variocostatus (171263) | |
| Middle Oxfordian | France | Perisphinctes variocostatus (12292) |