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Cranioceras
Taxonomy
Cranioceras was named by Matthew (1918). It is not extant.
It was assigned to Dromomerycidae by Matthew (1918), Janis and Manning (1998); and to Cranioceratini by Prothero and Liter (2007), Prothero and Liter (2008), May (2019).
It was assigned to Dromomerycidae by Matthew (1918), Janis and Manning (1998); and to Cranioceratini by Prothero and Liter (2007), Prothero and Liter (2008), May (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 1918 | Cranioceras Matthew |
| 1998 | Cranioceras Janis and Manning |
| 2007 | Cranioceras Prothero and Liter p. 247 |
| 2008 | Cranioceras Prothero and Liter |
| 2019 | Cranioceras May |
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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. †Cranioceras Matthew 1918
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†Cranioceras pawniensis Frick 1937
†Cranioceras teres Cope 1874
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Invalid names: Cranioceras clarendonensis Frick 1937 [synonym], Cranioceras dakotensis Frick 1937 [synonym]
†Cranioceras unicornis Matthew 1918
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Invalid names: Cranioceras granti Frick 1937 [synonym], Cranioceras mefferdi Frick 1937 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. R. Prothero and M. R. Liter 2008 | Long, upright supraorbital horns, tapering distally
and curved slightly inward; round in midshaft cross-section; long median occipital horn, round in cross-section and directed posteriorly. No upper canine. Short to moderate-length diastema. Premolar row shortened; an- terior fossette on p4 open. Brachyodont to mesodont molars with Palaeomeryx fold usually lost (modified from Janis and Manning, 1998, p. 485). |