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Dakeoceras
Taxonomy
Dakeoceras was named by Ulrich and Foerste (1931) [Sepkoski's age data: O Trem-l Sepkoski's reference number: 524]. Its type is Dakeoceras normale.
It was assigned to Cyrtendoceratidae by Ulrich et al. (1943); and to Ellesmeroceratidae by Flower (1964), Teichert et al. (1964), Crick (1981), Kröger and Landing (2007) and Evans (2011).
It was assigned to Cyrtendoceratidae by Ulrich et al. (1943); and to Ellesmeroceratidae by Flower (1964), Teichert et al. (1964), Crick (1981), Kröger and Landing (2007) and Evans (2011).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Dakeoceras Ulrich and Foerste p. 209 |
| 1943 | Dakeoceras Ulrich et al. |
| 1964 | Dakeoceras Flower p. 61 |
| 1964 | Dakeoceras Teichert et al. p. 140 |
| 1981 | Dakeoceras Crick p. 227 |
| 2007 | Dakeoceras Kröger and Landing |
| 2011 | Dakeoceras Evans |
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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. †Dakeoceras Ulrich and Foerste 1931
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†Dakeoceras champlainense Kröger and Landing 2007
†Dakeoceras corniculum Ulrich et al. 1943
†Dakeoceras dilatatum Ulrich et al. 1943
†Dakeoceras divergens Ulrich et al. 1943
†Dakeoceras gracilis Flower 1964
†Dakeoceras harrisi Flower 1964
†Dakeoceras magnisiphonatum Ulrich et al. 1943
†Dakeoceras mutabile Flower 1964
†Dakeoceras normale Ulrich and Foerste 1931
†Dakeoceras perretrorsum Ulrich et al. 1943
†Dakeoceras retrorsum Ulrich et al. 1943
†Dakeoceras reversum Ulrich et al. 1943
†Dakeoceras subcurvatum Ulrich and Foerste 1931
†Dakeoceras undulatum Ulrich et al. 1943
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 Demingian to the top of the Tremadocian or 485.40000 to 477.70000 Ma
Collections (25 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Skullrockian | United Kingdom (Scotland) | D. sp. (188569) | |
| Skullrockian | USA (New York) | D. champlainense (89489) D. gracilis (87319) D. harrisi (88873) D. sp. (88887) | |
| Tremadoc | China (Hubei) | D. sp. (4742) | |
| Tremadoc | China (HeBei) | D. sp. (7978) | |
| Tremadoc | USA (Virginia) | D. sp. (6971) | |
| Demingian | USA (Virginia) | D. sp. (56651) | |
| Gasconadian | USA (Missouri) | D. dilatatum (189355 189356) D. normale (189299) D. normale, D. corniculum, D. dilatatum, D. divergens, D. magnisiphonatum, D. perretrorsum (189357) D. normale, D. dilatatum, D. subcurvatum, D. undulatum (189298) D. perretrorsum (154357) | |
| Gasconadian | USA (New Mexico) | D. sp. (88804 88875) | |
| Gasconadian | USA (Texas) | D. mutabile (88874) | |
| Tremadocian | USA (Virginia) | D. sp. (78881) | |
| Tremadocian | USA (Missouri) | D. normale, D. retrorsum, D. subcurvatum (189294) D. reversum (189337 189358) | |
| Canadian | USA (Maryland) | D. sp. (274) | |
| Arenig | China (HeBei) | D. sp. (7972 7975) |