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Perisphinctes (Dichotomoceras) grossouvrei
Taxonomy
Perisphinctes grossouvrei was named by Siemiradzki (1898). It is not extant.
It was recombined as Perisphinctes (Dichotomoceras) grossouvrei by Pandey et al. (2013).
It was recombined as Perisphinctes (Dichotomoceras) grossouvrei by Pandey et al. (2013).
Sister species lacking formal opinion data
Dichotomoceras cliqueti, Dichotomoceras quadratum, Dichotomoceras rabenjanaharyi, Dichotomoceras umbilicatum, 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 |
|---|---|
| 1898 | Perisphinctes grossouvrei Siemiradzki |
| 2013 | Perisphinctes (Dichotomoceras) grossouvrei Pandey et al. p. 162 |
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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 (Dichotomoceras) grossouvrei Siemiradzki 1898
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D.K. Pandey et al. 2013 | Shells moderately evolute, compressed. Whorl section subrectangular with acutely rounded venter. Ornamentation consists of thin, moderately spaced, prorsiradiate, slightly flexuous ribs (numbering around 40 in inner whorls and 50 in outer whorls), branching slightly below the ventrolateral region. Secondary ribs cross the venter with a pronounced forward-directed sinuosity. Occasionally, undivided primary ribs occur. Constrictions are present on inner whorls. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Oxfordian to the top of the Oxfordian or 161.20000 to 157.30000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Oxfordian | Spain | Perisphinctes grossouvrei (67866 67867) | |
| Late/Upper Oxfordian | France | Dichotomoceras grossouvrei (62728) |