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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Erymnoceras
Taxonomy
Erymnoceras was named by Hyatt (1900) [Sepkoski's age data: J Call-m].
It was assigned to Pachyceratidae by Arkell (1952) and Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
It was assigned to Pachyceratidae by Arkell (1952) and Arkell et al. (1957); and to Ammonoidea by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1900 | Erymnoceras Hyatt p. 580 |
| 1952 | Erymnoceras Arkell p. 289 |
| 1957 | Erymnoceras Arkell et al. p. 296 |
| 2002 | Erymnoceras Sepkoski |
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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. †Erymnoceras Hyatt 1900
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Subg. †Erymnoceras (Pachyerymnoceras) Howarth 1998
†Erymnoceras ajax d'Orbigny 1850
†Erymnoceras baylei Jeannet 1951
†Erymnoceras coronoides Quenstedt 1887
†Erymnoceras doliforme Roman 1930
†Erymnoceras nodosum Jeannet 1951
†Erymnoceras philbyi Arkell 1952
†Erymnoceras triplicatum Till 1911
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 15 | 13.6 | 9.00 | 33.3 | 12.0 | 6.48 | |
| shell diameter | 15 | 37.1 | 22.0 | 107.0 | 32.0 | 21.5 | |
| shell inflation | 15 | 12.5 | 6.30 | 43.0 | 13.0 | 9.59 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Callovian to the top of the Callovian or 164.70000 to 163.50000 Ma
Collections (41 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Callovian | Saudi Arabia | E. ajax (47890) E. doliforme (47883 47884) E. sp. (48585 48604) | |
| Late/Upper Callovian | Switzerland | E. doliforme (171552 171702) | |
| Late/Upper Callovian | Saudi Arabia | E. ajax (141486) | |
| Late/Upper Callovian | Madagascar | E. dorothea (98136) | |
| Middle Callovian | France | E. baylei, E. coronoides (60617 60618) E. doliforme (60543 60552) E. sp. (60434 60436 60564 170212) | |
| Middle Callovian | Germany | E. argoviense (62270) E. sp. (62271 62272) | |
| Middle Callovian | Saudi Arabia | E. philbyi (184539 184548 184549 184552) E. triplicatum (184540) | |
| Middle Callovian | Switzerland | E. ajax (171605) E. baylei, E. ajax (171732) E. doliforme (171557 171596 171627 171700 171701 171703 171731) E. doliforme, E. coronoides (171761) E. doliforme, E. coronoides, E. ajax (171592) E. doliforme, E. nodosum (171593 171595) E. nodosum (171734) E. sp., E. doliforme, E. baylei, E. nodosum, E. ajax (171733) | |
| Middle Callovian - Late/Upper Callovian | Saudi Arabia | E. doliforme (34544) |