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Chondrichthyes - Eugeneodontiformes - Helicoprionidae

Synonymy list
YearName and author
1899Helicoprion Karpinsky p. 25
1907Lissoprion Hay
1955Helicoprion Larson and Scott p. 918
1963Helicoprion Jordan p. 596
1963Lissoprion Jordan p. 596
1976Helicoprion Kelly and Zangerl
1981Helicoprion Zangerl p. 86
1998Helicoprion Hanger and Strong p. 531
2002Helicoprion Sepkoski
2010Helicoprion Ginter et al. p. 126
2018Helicoprion Itano and Lucas p. 403

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EubilateriaAx 1987
phylumChordataHaeckel 1874
subclassHolocephali(Bonaparte 1832)
familyHelicoprionidaeKarpinsky 1911

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
Invalid names: Helicoprion nevadensis Wheeler 1939 [synonym]
Helicoprion davisii Woodward 1886
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]
No diagnoses are available
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 07:03:14
Modified: 2009-07-21 09:03:14
Source: o = order, subp = subphylum
References: Wagner 2022, Hendy et al. 2009, Carroll 1988

Age range: base of the Sakmarian to the top of the Wuchiapingian or 295.50000 to 254.17000 Ma

Collections (32 total)

Time interval Ma Country or state Original ID and collection number
Asselian - Sakmarian298.9 - 290.1USA (Nevada) H. sp. (130653)
Cisuralian298.9 - 272.3USA (California) H. sierrensis (118113)
Permian298.9 - 252.17USA (Nevada) H. nevadensis (118114)
Sakmarian295.5 - 290.1USA (Nevada) H. sp. (130655)
Artinskian290.1 - 279.3USA (Texas) H. ferrieri (105721)
Artinskian290.1 - 279.3Kazakhstan H. bessonowi (119029)
Artinskian290.1 - 279.3Russian Federation H. bessonowi (149416)
Kungurian279.3 - 272.3Australia (Western Australia) H. davisii (118112)
Kungurian279.3 - 272.3China (Hubei) H. jingmenense (120307)
Kungurian279.3 - 272.3USA (Texas) H. sp. (90276)
Kungurian279.3 - 272.3Mexico (Puebla) H. sp. (90679)
Roadian272.3 - 268.8USA (Utah) H. sp. (11271)
Roadian272.3 - 268.8USA (Idaho) H. davisii (152127 152129 152130) H. davisii, H. ergassaminon (152128) H. ferrieri (140078) H. sp. (11285 152131) H. sp., H. ergassaminon (140145) Lissoprion ferrieri (132826)
Roadian272.3 - 268.8Japan H. bessonowi (133437)
Roadian272.3 - 268.8USA (Wyoming) H. sp. (11229) Lissoprion ferrieri (108931)
Roadian272.3 - 268.8Canada (Nunavut) H. sp. (90234 152126)
Roadian272.3 - 268.8USA (Montana) H. sp. (11280)
Roadian272.3 - 268.8Canada (Alberta) H. sp. (112844)
Roadian272.3 - 268.8USA (Texas) H. sp. (152125)
Guadalupian272.3 - 259.9Canada (British Columbia) H. sp. (149354)
Capitanian265.1 - 259.9Japan H. sp. (149339)
Wuchiapingian259.9 - 254.17USA (Wyoming) Edestus sp. (90235)