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Rasmussenoceras
Taxonomy
Rasmussenoceras was named by Foerste (1932) [Sepkoski's age data: O Ashg-m
Sepkoski's age data: O Cara O Ashg Sepkoski's reference number: 298]. Its type is Lambeoceras leveannulatum.
It was assigned to Allumettoceratidae by Flower (1962); to Tripteroceratidae by Teichert et al. (1964) and Crick (1981); and to Oncoceratida by Sepkoski (2002).
It was assigned to Allumettoceratidae by Flower (1962); to Tripteroceratidae by Teichert et al. (1964) and Crick (1981); and to Oncoceratida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1932 | Rasmussenoceras Foerste p. 51 |
| 1962 | Rasmussenoceras Flower |
| 1964 | Rasmussenoceras Teichert et al. p. 290 |
| 1981 | Rasmussenoceras Crick p. 229 |
| 2002 | Ramussenoceras 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.
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 Chatfieldian to the top of the Cautleyan or 453.80000 to 448.80000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wildernessian | Canada (Northwest Territories) | R. sp. (26947) | |
| Chatfieldian - Edenian | Canada (Nunavut) | R. leveannulatum (192339) | |
| Richmondian - Ashgill | USA (Ohio) | R. sp. (394) | |
| Ashgill | USA (Indiana) | R. variable (5324) | |
| Cautleyan | Greenland (Washington Land) | Lambeoceras leveannulatum (24162) |