Biddulphia Gray 1821
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Parent taxon: Biddulphiaceae according to E. Fourtanier and J. P. Kociolek 1999
See also Abbott and Ernissee 1983 and Andrews 1976
Sister taxa: Biddulphioideae, Briggera, Eunotogramma, Fenneria, Hemiaulus, Isthmia, Lisitzinia, Pseudotriceratium
Subtaxa: Biddulphia aurita Biddulphia semicircularis Biddulphia tuomeyi
Distribution:
• Miocene of Mexico (1 collection), Morocco (1), United States (2: Maryland, North Carolina)
• Eocene of the Russian Federation (1)
• Paleocene of Antarctica (4)
• Cretaceous of Antarctica (3), Canada (1: Northwest Territories)
Total: 13 collections including 18 occurrences
Specimen images are retrieved through the ePANDDA API.
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