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Sthenictis bellus
Taxonomy
Sthenictis bellus was named by Matthew (1932). Its type specimen is AMNH 20501, a mandible (a right ramus of the lower jaw, with p2 - m1 preserved), and it is a 3D body fossil. Its type locality is Thomson Quarry, which is in a Hemingfordian terrestrial horizon in the Sheep Creek Formation of Nebraska.
Synonymy list
Year | Name and author |
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1932 | Sthenictis bellus Matthew p. 1 fig. 1 |
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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.
†Sthenictis bellus Matthew 1932
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Diagnosis
Reference | Diagnosis | |
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W. D. Matthew 1932 | -Sizemuch less than S. dolichops, about equal to Mionictis incerta or Brachypsalis matutinus, but agrees with Sthenictis and differs from the other two in the construction and proportions of the carnassial and premolars. The second third and fourth premolars are two-rooted, compressed, not crowded, p4 with well developed posterior accessory cusp. The shear of the carnassial is nearly anteroposterior, the metaconid well developed but not nearly as high as in Mionictis or Brachypsalis. The last molar has a single alveolus, which apparently contained a large anterior and smaller posterior root, closely connate. In S. dolichops the alveolus is round-oval apparently for a single root. |
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Carroll 1988, Hendy et al. 2009, Lillegraven 1979, Ji et al. 2002, Nowak 1991 |
Age range: Hemingfordian or 20.43000 to 15.97000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Hemingfordian | USA (Nebraska) | Sthenictis bellus (type locality: 18001) |