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Pygorhynchus
Taxonomy
Pygorhynchus was named as a genus. It is not extant.
It was reranked as Nucleolites (Pygorhynchus) by Forbes (1846); it was reranked as Cassidulus (Pygorhynchus) by Clark and Twitchell (1915).
It was assigned to Nucleolites by Forbes (1846); to Cassidulus by Clark and Twitchell (1915); to Cassiduloida by Sepkoski (2002); and to Nucleolitidae by Kier (1962), Kier (1966) and Kroh (2010).
It was reranked as Nucleolites (Pygorhynchus) by Forbes (1846); it was reranked as Cassidulus (Pygorhynchus) by Clark and Twitchell (1915).
It was assigned to Nucleolites by Forbes (1846); to Cassidulus by Clark and Twitchell (1915); to Cassiduloida by Sepkoski (2002); and to Nucleolitidae by Kier (1962), Kier (1966) and Kroh (2010).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1846 | Nucleolites (Pygorhynchus) Forbes p. 161 |
| 1855 | Botriopygus d'Orbigny p. 334 |
| 1915 | Botriopygus Clark and Twitchell p. 68 |
| 1915 | Cassidulus (Pygorhynchus) Clark and Twitchell p. 171 |
| 1926 | Botriopygus Sanchez Roig p. 68 |
| 1962 | Pygorhynchus Kier p. 81 |
| 1966 | Pygorhynchus Kier p. U506 |
| 2002 | Pygorhynchus Sepkoski |
| 2010 | Pygorhynchus Kroh pp. 314 - 315 |
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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.
G. †Pygorhynchus
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†Cassidulus (Pygorhynchus) sabistonensis Kellum 1931
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Invalid names: Cassidulus (Pygorhynchus) berryi Kellum 1926 [synonym]
†Nucleolites (Pygorhynchus) planatus Forbes 1846
†Nucleolites (Pygorhynchus) testudo Forbes 1846
†Pygorhynchus obovatus Agassiz 1836
Invalid names: Botriopygus d'Orbigny 1855 [objective synonym]
Diagnosis
No diagnoses are available