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Robsonoceras
Taxonomy
Robsonoceras was named by Ulrich and Foerste (1933) [Sepkoski's age data: O Trem-u O Aren Sepkoski's reference number: 298,524]. Its type is Ellesmeroceras robsonensis.
It was assigned to Robsonoceratidae by Ulrich and Foerste (1933); to Ellesmeroceratidae by Flower (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
It was assigned to Robsonoceratidae by Ulrich and Foerste (1933); to Ellesmeroceratidae by Flower (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
Species
Synonymy list
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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. †Robsonoceras Ulrich and Foerste 1933
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†Robsonoceras manitouense Ulrich et al. 1944
†Robsonoceras robsonense Walcott 1924
Diagnosis
No diagnoses are available