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Taxonomy
Sciurus arctomyoides was named by Douglass (1903). Its type specimen is CM 741, a partial skull (Upper incisors in fragments of the premaxillae; the right P3, P4, and Ml in a fragment of the maxilla; a nearly complete left mandibular ramus with all of the t), and it is a 3D body fossil.
It was recombined as Arctomyoides arctomyoides by Bryant (1945), Black (1963) and Tabrum and Nichols (2001).
It was recombined as Arctomyoides arctomyoides by Bryant (1945), Black (1963) and Tabrum and Nichols (2001).
Synonymy list
Year | Name and author |
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1903 | Sciurus arctomyoides Douglass |
1945 | Arctomyoides arctomyoides Bryant p. 361 figs. P1. 8, fig. f |
1963 | Arctomyoides arctomyoides Black |
2001 | Arctomyoides arctomyoides Tabrum and Nichols |
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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.
†Arctomyoides arctomyoides Douglass 1903
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Diagnosis
Reference | Diagnosis | |
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M. D. Bryant 1945 | Mandibular ramus slightly larger than that of Cynomys l. ludovicianus, larger than that of any North American species of Sciurus and smaller than the rami of Marmota and Palaearclomps. Messeteric fossa broadly rounded anteriorly; terminates below posterior margin of p4. |
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Nowak 1991, Carroll 1988, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009 |
Collections
No collection or age range data are available