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Protornoceras
Taxonomy
Protornoceras was named by Dybczynski (1913) [Sepkoski's age data: D Fame-m Sepkoski's reference number: 1042]. It is not extant. Its type is Protornoceras polonicum.
It was reranked as Tornoceras (Protornoceras) by Nalivkina (1953).
It was assigned to Tornoceras by Nalivkina (1953); to Goniatitida by Sepkoski (2002); and to Kirsoceratidae by Korn and Klug (2002) and Korn (2006).
It was reranked as Tornoceras (Protornoceras) by Nalivkina (1953).
It was assigned to Tornoceras by Nalivkina (1953); to Goniatitida by Sepkoski (2002); and to Kirsoceratidae by Korn and Klug (2002) and Korn (2006).
Species
P. curvidorsatum (syn. Tornoceras umbilicatum), P. evolutum, P. ornatum, P. planilobum (syn. Tornoceras genulobatum, Tornoceras avaricatum, Tornoceras arcuatolobatum, Tornoceras angulatobatum, Tornoceras flexuosum), P. polonicum (syn. P. zuberi, P. kielcense, P. bilobatiforme, P. aphyllitiforme, Polonoceras latum, P. siemiradzkii) (type species), P. simplificatum (syn. Tornoceras umbilicatoides, Tornoceras simplicissimum, Tornoceras simplicius), P. sinuvaricatum
Synonymy list
| Year | Name and author |
|---|---|
| 1913 | Protornoceras Dybczynski |
| 1953 | Tornoceras (Protornoceras) Nalivkina |
| 2002 | Protornoceras Korn and Klug p. 165 |
| 2002 | Protornoceras Sepkoski |
| 2006 | Protornoceras Korn |
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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. †Protornoceras Dybczynski 1913
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†Protornoceras curvidorsatum Sobolew 1914
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Invalid names: Tornoceras umbilicatum Sobolew 1914 [synonym]
†Protornoceras evolutum Sobolew 1914
†Protornoceras ornatum Dybczynski 1913
†Protornoceras planilobum Sobolew 1914
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Invalid names: Tornoceras angulatobatum Sobolew 1914 [synonym], Tornoceras arcuatolobatum Sobolew 1914 [synonym], Tornoceras avaricatum Sobolew 1914 [synonym], Tornoceras flexuosum Sobolew 1914 [synonym], Tornoceras genulobatum Sobolew 1914 [synonym]
†Protornoceras polonicum Dybczynski 1913
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Invalid names: Polonoceras latum Dybczynski 1913 [synonym], Protornoceras aphyllitiforme Dybczynski 1913 [synonym], Protornoceras bilobatiforme Dybczynski 1913 [synonym], Protornoceras kielcense Dybczynski 1913 [synonym], Protornoceras siemiradzkii Dybczynski 1913 [synonym], Protornoceras zuberi Dybczynski 1913 [synonym]
†Protornoceras simplificatum Sobolew 1914
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Invalid names: Tornoceras simplicissimum Sobolew 1914 [synonym], Tornoceras simplicius Sobolew 1914 [synonym], Tornoceras umbilicatoides Sobolew 1914 [synonym]
†Protornoceras sinuvaricatum Sobolew 1914
Diagnosis
No diagnoses are available