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Helicoprionidae
Taxonomy
Helicoprionidae was named by Karpinsky (1911). Its type is Helicoprion.
It was synonymized subjectively with Agassizodontidae by Nelson (2006).
It was assigned to Bradyodonti by Obruchev (1964); and to Eugeneodontiformes by Itano and Lucas (2018).
It was synonymized subjectively with Agassizodontidae by Nelson (2006).
It was assigned to Bradyodonti by Obruchev (1964); and to Eugeneodontiformes by Itano and Lucas (2018).
Subtaxa
Agassizodus, Arpagodus, Helicoprion (syn. Lissoprion) (type genus), Karpinskiprion, Parahelicoprion, Sarcoprion, Toxoprion
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1911 | Helicoprionidae Karpinsky |
| 1964 | Helicoprionidae Obruchev p. 362 |
| 1981 | Agassizodontidae Zangerl p. 86 |
| 2004 | Agassizodontidae Goto and Okura p. 218 |
| 2006 | Agassizodontidae Nelson p. 44 |
| 2010 | Agassizodontidae Ginter et al. p. 124 |
| 2018 | Helicoprionidae Itano and Lucas p. 408 |
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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.
Fm. †Helicoprionidae Karpinsky 1911
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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]
Invalid names: Agassizodontidae Zangerl 1981 [synonym]
Diagnosis
No diagnoses are available