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Helicoprion
Taxonomy
Helicoprion was named by Karpinsky (1899) [Sepkoski's age data: P l P Guad-u Sepkoski's reference number: 718]. It is the type genus of Helicoprionidae.
It was assigned to Edestidae by Larson and Scott (1955), Jordan (1963) and Kelly and Zangerl (1976); to Eugeneodontida by Sepkoski (2002); to Agassizodontidae by Zangerl (1981) and Ginter et al. (2010); and to Helicoprionidae by Hanger and Strong (1998) and Itano and Lucas (2018).
It was assigned to Edestidae by Larson and Scott (1955), Jordan (1963) and Kelly and Zangerl (1976); to Eugeneodontida by Sepkoski (2002); to Agassizodontidae by Zangerl (1981) and Ginter et al. (2010); and to Helicoprionidae by Hanger and Strong (1998) and Itano and Lucas (2018).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Helicoprion Karpinsky p. 25 |
| 1907 | Lissoprion Hay |
| 1955 | Helicoprion Larson and Scott p. 918 |
| 1963 | Helicoprion Jordan p. 596 |
| 1963 | Lissoprion Jordan p. 596 |
| 1976 | Helicoprion Kelly and Zangerl |
| 1981 | Helicoprion Zangerl p. 86 |
| 1998 | Helicoprion Hanger and Strong p. 531 |
| 2002 | Helicoprion Sepkoski |
| 2010 | Helicoprion Ginter et al. p. 126 |
| 2018 | Helicoprion Itano and Lucas p. 403 |
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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. †Helicoprion Karpinsky 1899
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†Helicoprion bessonowi Karpinsky 1899
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Invalid names: Helicoprion nevadensis Wheeler 1939 [synonym]
†Helicoprion davisii Woodward 1886
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Invalid names: Helicoprion jingmenense Chen et al. 2007 [synonym], Helicoprion sierrensis Wheeler 1939 [synonym], Lissoprion ferrieri Hay 1907 [synonym]
†Helicoprion ergassaminon Bendix-Almgreen 1966
Invalid names: Lissoprion Hay 1907 [synonym]
Diagnosis
No diagnoses are available