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Ceratodus nirumbee
Taxonomy
Ceratodus nirumbee was named by Frederickson and Cifelli (2017). Its type specimen is OMNH 34765, a partial skull (a complete right prearticular plate), and it is a 3D body fossil. Its type locality is OMNH locality V1061, which is in an Albian terrestrial horizon in the Cloverly Formation of Montana.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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2017 | Ceratodus nirumbee Frederickson and Cifelli p. 153 figs. 2.8-2.9 |
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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.
†Ceratodus nirumbee Frederickson and Cifelli 2017
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Diagnosis
Reference | Diagnosis | |
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J. A. Frederickson and R. L. Cifelli 2017 | A tall-crested, medium-sized ceratodontid most closely resembling C. fossanovum, differing in the extreme mesial placement of Ruge’s Ridge; ridge crests more distinct, particularly near area of common origin, with narrower crest Cp and better developed C 3 -C p notch; and a more angulate, less rounded posterolingual margin. |