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Stephanoceras (Perisphinctes)
Taxonomy
Stephanoceras (Perisphinctes) was named by Waagen (1869) [Sepkoski's age data: J Call-m J Tith]. It is not extant. It is the type subgenus of Perisphinctidae, Perisphinctaceae, Perisphinctinae.
It was Ammonites (Perisphinctes) by de Loriol (1877) and Crick (1894); it was reranked as Perisphinctes by Arkell (1952), Sepkoski (2002), Parent (2006), Matsukawa et al. (2008), Sato and Yamada (2014) and Callomon (2016).
It was assigned to Stephanoceras by Waagen (1869); to Ammonites by de Loriol (1877) and Crick (1894); to Perisphinctidae by Arkell (1952); to Ammonoidea by Sepkoski (2002); and to Perisphinctinae by Parent (2006), Matsukawa et al. (2008), Sato and Yamada (2014) and Callomon (2016).
It was Ammonites (Perisphinctes) by de Loriol (1877) and Crick (1894); it was reranked as Perisphinctes by Arkell (1952), Sepkoski (2002), Parent (2006), Matsukawa et al. (2008), Sato and Yamada (2014) and Callomon (2016).
It was assigned to Stephanoceras by Waagen (1869); to Ammonites by de Loriol (1877) and Crick (1894); to Perisphinctidae by Arkell (1952); to Ammonoidea by Sepkoski (2002); and to Perisphinctinae by Parent (2006), Matsukawa et al. (2008), Sato and Yamada (2014) and Callomon (2016).
Species lacking formal opinion data
Perisphinctes A, Perisphinctes B, Perisphinctes africanus, Perisphinctes alatus, Perisphinctes andelotensis, Perisphinctes andium, Perisphinctes anguiculus, Perisphinctes buckmani, Perisphinctes buckmanni, Perisphinctes crassissimus, Perisphinctes dacquei, Perisphinctes densecostatus, Perisphinctes dorsoplanus, Perisphinctes eucostatus, Perisphinctes luciaeformis, Perisphinctes mairei-matheyi, Perisphinctes malinowskae, Perisphinctes panderi, Perisphinctes patturatensis, Perisphinctes pickeringius, Perisphinctes polygyratus, Perisphinctes polygyratus, Perisphinctes praestenocyclus, Perisphinctes progeron, Perisphinctes pumilus, Perisphinctes quadratus, Perisphinctes quadratus, Perisphinctes roedereri, Perisphinctes scythicus, Perisphinctes siemiradzkii, Perisphinctes siemirazkii, Stephanoceras juhlei, Stephanoceras kirschneri, Stephanoceras nodosum, Stephanoceras obesum, Stephanoceras pyritosum, Stephanoceras quenstedti, Stephanoceras skidegatensis, Stephanoceras umbilicatum
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Stephanoceras (Perisphinctes) Waagen p. 248 |
| 1877 | Ammonites (Perisphinctes) de Loriol pp. 49-50 |
| 1894 | Ammonites (Perisphinctes) Crick p. 436 |
| 1952 | Perisphinctes Arkell p. 292 |
| 2002 | Perisphinctes Sepkoski |
| 2006 | Perisphinctes Parent p. 37 |
| 2008 | Perisphinctes Matsukawa et al. p. 4 |
| 2014 | Perisphinctes Sato and Yamada p. 36 |
| 2016 | Perisphinctes Callomon |
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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.
Subg. †Stephanoceras (Perisphinctes) Waagen 1869
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J.H. Callomon 2016 | Ammonites biplex genotype |