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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Canis vafer was named by Leidy (1858). It is a 3D body fossil. Its type locality is Niobrara River (coll. Hayden 1857), which is in a Barstovian/Clarendonian terrestrial horizon in the Loup Fork Formation of Nebraska.
It was recombined as Tephrocyon vafer by Matthew (1909); it was recombined as Vulpes vafer by Stirton (1935) and Macdonald (1948); it was recombined as Leptocyon vafer by Matthew (1918), Galbreath (1953), Storer (1975), Voorhies (1990), Wang et al. (2008), Tedford et al. (2009) and May (2019).
It was recombined as Tephrocyon vafer by Matthew (1909); it was recombined as Vulpes vafer by Stirton (1935) and Macdonald (1948); it was recombined as Leptocyon vafer by Matthew (1918), Galbreath (1953), Storer (1975), Voorhies (1990), Wang et al. (2008), Tedford et al. (2009) and May (2019).
Synonymy list
Year | Name and author |
---|---|
1858 | Canis vafer Leidy p. 21 |
1873 | Canis vafer Leidy p. 315 |
1890 | Canis vafer Scott and Osborn p. 69 |
1902 | Canis vafer Hay p. 776 |
1909 | Tephrocyon vafer Matthew |
1918 | Leptocyon vafer Matthew |
1919 | Canis vafer Merriam |
1935 | Vulpes vafer Stirton |
1948 | Vulpes vafer Macdonald |
1953 | Leptocyon vafer Galbreath |
1975 | Leptocyon vafer Storer |
1990 | Leptocyon vafer Voorhies |
2008 | Leptocyon vafer Wang et al. |
2009 | Leptocyon vafer Tedford et al. p. 34 figs. 3, 7, 9C–E, G, H, 14G–H, 15A–G, 16A–G, 17, 52, 61A; appendices 2, 4 |
2019 | Leptocyon vafer 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.
†Leptocyon vafer Leidy 1858
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Diagnosis
Reference | Diagnosis | |
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R. H. Tedford et al. 2009 | Distinguished from L. leidyi by its significantly larger size (95% confidence interval for first lower molars of these taxa nearly separated;fig. 7), m2 shorter relative to m1 (fig. 7) with enlarged ante- rolabial cingulum and large metaconid, cranium lacks postparietal foramina, shows reduced cerebellar exposure, and nasals do not extend posterior to maxillary-frontal suture. Distinguished from L. tejonensis in longer muzzle and more widely spaced and anteroposteriorly longer premolars with stronger accessory cusps. L. vafer differs from L. matthewi in significantly smaller size, with no overlap of m1 95% confidence intervals (fig. 7) nasals do not extend poste- rior to maxillary-frontal suture, M2 lacks postprotocrista, m1 lacks hypoconulid shelf, and entoconid not enlarged. |
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Ji et al. 2002, Carroll 1988, Hendy et al. 2009, Nowak 1991, Lillegraven 1979 |
Age range: base of the Barstovian to the top of the Early/Lower Clarendonian or 16.30000 to 9.40000 Ma
Collections (51 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Miocene | USA (South Dakota) | Leptocyon vafer (18083) | |
Late/Upper Hemingfordian | USA (New Mexico) | Leptocyon vafer (19339) | |
Barstovian | USA (Nevada) | Leptocyon vafer (19097) | |
Barstovian | USA (New Mexico) | Leptocyon vafer (19274 19470 19519 19535) | |
Barstovian | USA (Colorado) | Leptocyon vafer (18220) | |
Barstovian | USA (Nebraska) | Leptocyon sp. (18141) Leptocyon vafer (18027 18031 18109 18125 18155 18164 18192 18209 18216 18232 18266 18275 18284 18337 18363 18442 18443) Vulpes vafer (18165) | |
Barstovian | Canada (Saskatchewan) | Leptocyon vafer (18788 18790 18797) | |
Barstovian - Clarendonian | USA (New Mexico) | Leptocyon vafer (19531) | |
Barstovian - Clarendonian | USA (Nebraska) | Canis vafer (190543) Leptocyon vafer (18077 18306) | |
Barstovian - Early/Lower Clarendonian | USA (New Mexico) | Leptocyon vafer, Canidae indet. (19286) | |
Clarendonian | USA (Nebraska) | Leptocyon vafer (18106 18157 18217 18242 18260 18378) | |
Clarendonian | USA (California) | Leptocyon sp. (19145) Leptocyon vafer (19322 19323) Vulpes sp. (19517) Vulpes vafer (19185) | |
Clarendonian | USA (Nevada) | Leptocyon vafer (18845 19035) | |
Clarendonian | USA (Texas) | Leptocyon vafer, Canidae indet. (18611) | |
Late/Upper Clarendonian | USA (Kansas) | Leptocyon vafer (110829) | |
Late/Upper Clarendonian | USA (New Mexico) | Leptocyon vafer (19528) |