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Ectenoceras
Taxonomy
Ectenoceras was named by Ulrich and Foerste (1936). Its type is Ectenoceras ruedemanni.
It was assigned to Cyrtendoceratidae by Ulrich et al. (1943); to Ellesmeroceratidae by Unklesbay and Young (1956), Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
It was assigned to Cyrtendoceratidae by Ulrich et al. (1943); to Ellesmeroceratidae by Unklesbay and Young (1956), Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Ectenoceras Ulrich and Foerste |
| 1943 | Ectenoceras Ulrich et al. |
| 1956 | Ectenoceras Unklesbay and Young p. 486 |
| 1981 | Ectenoceras Crick p. 227 |
| 2002 | Ectenoceras 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. †Ectenoceras Ulrich and Foerste 1936
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†Ectenoceras arbucklense Ulrich et al. 1943
†Ectenoceras arcuosutum Ulrich et al. 1943
†Ectenoceras chepultepecense Ulrich et al. 1943
†Ectenoceras compressum Ulrich et al. 1943
†Ectenoceras curvatum Kobayashi 1931
†Ectenoceras ellipticum Ulrich et al. 1943
†Ectenoceras exile Ulrich et al. 1943
†Ectenoceras gracile Cleland 1903
†Ectenoceras higdonense Ulrich et al. 1943
†Ectenoceras laqueatum Ulrich et al. 1943
†Ectenoceras longum Ulrich et al. 1943
†Ectenoceras millsi Ulrich et al. 1943
†Ectenoceras obliquum Ulrich et al. 1943
†Ectenoceras pergracile Ulrich et al. 1943
†Ectenoceras perobliquum Ulrich et al. 1943
†Ectenoceras ruedemanni Kobayashi 1933
†Ectenoceras subcurvatum Kobayashi 1933
†Ectenoceras subcurvatum Ulrich et al. 1943
†Ectenoceras subgracile Ulrich and Foerste 1936
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Cressagian to the top of the Floian or 486.40000 to 471.30000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Skullrockian - Stairsian | USA (Tennessee) | E. millsi (189363) | |
| Skullrockian - Stairsian | USA (Alabama) | E. chepultepecense (189326) | |
| Demingian | USA (Virginia) | E. sp. (56651) | |
| Demingian | USA (Tennessee) | E. arcuosutum (154344) | |
| Gasconadian | USA (Texas) | E. longum, E. pergracile (56498) E. sp. (271) | |
| Gasconadian | USA (Missouri) | E. ellipticum (189298) E. higdonense (101764) | |
| Gasconadian | USA (Virginia) | E. chepultepecense, E. compressum, E. exile, E. longum (73291) | |
| Gasconadian | USA (New York) | E. sp. (273) | |
| Tremadocian | USA (Missouri) | E. compressum, E. laqueatum (189358) E. exile (189359) E. subgracile (189364) | |
| Tremadocian | USA (Maryland) | E. perobliquum (189353) | |
| Tremadocian | USA (New York) | E. gracile (189360 189361 189362) | |
| Tremadocian | USA (Wisconsin) | E. obliquum (189290) | |
| Tremadocian | USA (Virginia) | E. sp. (78881) | |
| Cressagian | South Korea (Hwanghae-namdo) | E. ruedemanni, E. curvatum, E. subcurvatum (39398) | |
| Floian | USA (Oklahoma) | E. arbucklense (101760) |