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Urocyon citrinus

Mammalia - Carnivora - Canidae

Taxonomy
Urocyon citrinus was named by Tedford et al. (2009). Its type specimen is UF 18060, a mandible, and it is a 3D body fossil. Its type locality is Inglis IA, which is in a Calabrian terrestrial horizon in Florida.

Synonymy list
YearName and author
2009Urocyon citrinus Tedford et al. p. 73 figs. 29C–E; appendix 3

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
RankNameAuthor
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
Laurasiatheria
Scrotifera
Ferae()
CarnivoramorphaWyss and Flynn 1993
CarnivoraformesFlynn et al.
orderCarnivoraBowditch 1821
suborderCaniformiaKretzoi 1943
superfamilyCanoideaSimpson 1931
familyCanidaeFischer 1817
subfamilyCaninaeGill 1872
tribeVulpiniHemprich and Ehrenberg 1832
genusUrocyonBaird 1857
speciescitrinus

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.

Diagnosis
ReferenceDiagnosis
R. H. Tedford et al. 2009A synapomorphy that U. citri- nus shares with U. galushai is rounded subangular lobe on the mandibular ramus. Pleistocene and Recent species of Urocyon have a distinctly angular subangular process. We have been unable to recognize any autapomorphies for this taxon, although it clearly belongs to the genus as discussed below.
Differs from U. galushai in the following plesiomorphies: smaller premolars, and larg- er m2 with longer trigonid, stronger para- cristid and small paraconid, longer bicuspid talonid with entoconulid, and distinct hypo- conulid. Differs from U. minicephalus in the following plesiomorphies: less robust p4; m1 more elongate; and m2 relatively larger, trigonid longer, paraconid small, and talonid longer with distinct entoconulid. Differs from U. c. floridanus in the following plesiomor- phies; slenderer p4; m1 narrower, metaconid relatively smaller, protostylid weaker, ento- conulid stronger; and m2 lingual border less convex and buccal border less concave, trigonid longer, paracristid stronger, metaco- nid and protoconid smaller with protoconid situated more posteriorly and nearly opposite metaconid; and talonid relatively wider. Differs from U. c. scotti in the following plesiomorphies: larger m2 with longer trigo- nid, stronger paracristid, and small paraco- nid, and wider talonid.