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Dinohippus subvenus
Taxonomy
Dinohippus subvenus was named by Quinn (1955) [type locality is 18610]. Its type specimen is BEG 31132-333, a mandible (Right lower jaw lacking symphysis and ascending ramus), and it is a 3D body fossil. Its type locality is Bridge Ranch, Normanna, which is in a Clarendonian terrestrial sandstone/claystone in the Goliad Formation of Texas.
It was synonymized subjectively with Pliohippus supremus by Webb (1969) and Forsten (1975); it was synonymized subjectively with Pliohippus pernix by Hulbert (1988); it was considered a nomen dubium by Azzaroli (1988).
It was synonymized subjectively with Pliohippus supremus by Webb (1969) and Forsten (1975); it was synonymized subjectively with Pliohippus pernix by Hulbert (1988); it was considered a nomen dubium by Azzaroli (1988).
Synonymy list
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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.
†Dinohippus subvenus Quinn 1955
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Diagnosis
Reference | Diagnosis | |
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J. H. Quinn 1955 | ngth of lower cheek tooth series equal to that of D. inter- polatus; transverse diameter approxi· mately the same; metaconid, metastylid and entoconid smaller and less closely ap- pressed to protoconid and hypoconid; hypoconulid of third molar deeply grooved internally; upper cheek teeth similar in size to those of D. interpolatus at summit of crowns but much more tapered, more curved, less hypsodont;
styles heavy but less so than in D. inter- polatus; enamel pattern similar; ram us considerably more slender. |
Measurements
No measurements are available
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Source: g = genus, subf = subfamily, subc = subclass, c = class, subp = subphylum | |||||
References: MacFadden and Cerling 1996, Lillegraven 1979, Carroll 1988, Ji et al. 2002, Hendy et al. 2009, MacFadden 1998 |
Age range: Clarendonian or 12.50000 to 9.40000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Clarendonian | USA (Texas) | Dinohippus subvenus (type locality: 18610) |