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Epicheloniceras
Taxonomy
Cheloniceras (Epicheloniceras) was named by Casey (1954). Its type is Douvilleiceras tschernyschewi.
It was reranked as Epicheloniceras by Sepkoski (2002), Ovando-Figueroa et al. (2018), Lehmann et al. (2020), Matsukawa (2021), Lehmann and Aly (2024).
It was assigned to Ammonoidea by Sepkoski (2002); to Cheloniceras by Casey (1954), Szives (2007), El Qot (2018); to Douvilleiceratinae by Lehmann et al. (2020); and to Cheloniceratinae by Ovando-Figueroa et al. (2018), Matsukawa (2021), Lehmann and Aly (2024).
It was reranked as Epicheloniceras by Sepkoski (2002), Ovando-Figueroa et al. (2018), Lehmann et al. (2020), Matsukawa (2021), Lehmann and Aly (2024).
It was assigned to Ammonoidea by Sepkoski (2002); to Cheloniceras by Casey (1954), Szives (2007), El Qot (2018); to Douvilleiceratinae by Lehmann et al. (2020); and to Cheloniceratinae by Ovando-Figueroa et al. (2018), Matsukawa (2021), Lehmann and Aly (2024).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Cheloniceras (Epicheloniceras) Casey p. 113 |
| 2002 | Epicheloniceras Sepkoski |
| 2007 | Cheloniceras (Epicheloniceras) Szives p. 62 |
| 2018 | Cheloniceras (Epicheloniceras) El Qot p. 166 |
| 2018 | Epicheloniceras Ovando-Figueroa et al. p. 114 |
| 2020 | Epicheloniceras Lehmann et al. p. 327 |
| 2021 | Epicheloniceras Matsukawa p. 10 |
| 2024 | Epicheloniceras Lehmann and Aly p. 6 |
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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. †Epicheloniceras Casey 1954
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†Epicheloniceras claudii Casey 1962
†Epicheloniceras orientale Jacob 1905
†Epicheloniceras quadrituberculatum Collignon 1962
†Epicheloniceras sinuosum d'Orbigny 1841
†Epicheloniceras subnodosocostatum Sinzow 1906
†Epicheloniceras tschernyschewi Sinzow 1906
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 25.6 | 8.00 | 63.0 | 24.0 | 22.2 | |
| shell diameter | 6 | 61.6 | 22.0 | 139.0 | 57.5 | 46.2 | |
| shell inflation | 6 | 19.5 | 8.00 | 42.0 | 18.0 | 15.0 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Aptian to the top of the Late/Upper Aptian or 125.00000 to 113.00000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | Georgia | E. sp. (2116) | |
| Aptian | Morocco (Western High Atlas) | Cheloniceras subnodosocostatum (2070) | |
| Aptian | Mexico | E. subnodocostatum (87926) | |
| Aptian | Mexico (Nuevo Léon) | Cheloniceras sp. (87927) | |
| Aptian | United Kingdom (England) | Cheloniceras tschernyschewi (1759) E. sp. (1769 1822) E. sp., Cheloniceras tschernyschewi (1760) | |
| Aptian - Albian | Azerbaijan | E. tschernyschowi (209384) | |
| Aptian - Albian | Brazil | E. sp. (114715) | |
| Late/Upper Aptian | Colombia | Cheloniceras subnodosocostatum (97675) | |
| Late/Upper Aptian | Mexico (Nuevo León) | E. sp. (220675 220677 220682 220684 220691 220692 220693 220694 220697 220700) | |
| Late/Upper Aptian | Mexico | Douvilleiceras tschernyschewi (65624) | |
| Late/Upper Aptian | Mexico (Chihuahua) | E. sp., E. tschernyschewi (189917) | |
| Late/Upper Aptian | Germany | Cheloniceras tschernyschewi, Cheloniceras subnodosocostatum (64189) | |
| Late/Upper Aptian | United Kingdom (England) | Cheloniceras eotypicum (77925) E. martinioides, E. tschernyschewi, E. subnodosocostatum (232865) | |
| Late/Upper Aptian | Russian Federation | E. subnodosocostatum, E. orientale (236906) | |
| Late/Upper Aptian | Japan (Nagano) | E. claudii (220843 220846 220847) | |
| Late/Upper Aptian | Madagascar | E. sinuosum (83996) E. tschernyschewi, E. quadrituberculatum (84024) | |
| Late/Upper Aptian | Egypt | Cheloniceras tschernyschewi (191709) E. tschernyschewi (235865 235866 235868) | |
| Late/Upper Aptian | France | E. martini (228400) E. martinoides, E. subnodosocostatum (56532) E. waageni, E. tschernyschewi (185039) | |
| Late/Upper Aptian | Mozambique | Cheloniceras subnodosocostatum (174621) | |
| Early/Lower Aptian | Mexico (Nuevo León) | E. sp. (220655 220685 220688) | |
| Early/Lower Aptian | Mozambique | Cheloniceras tschernyschewi (174803) |