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Dinohippus interpolatus
Taxonomy
Hippidium interpolatum was named by Cope (1893) [also said to be 1886, and also said originally to have been placed in Hippidion]. It is a 3D body fossil. Its type locality is Goodnight's, which is in a Hemphillian terrestrial horizon in the Goodnight Beds Formation of Texas.
It was recombined as Hippidion interpolatum by Hay (1902); it was recombined as Protohippus interpolatus by Gidley (1903) and Matthew (1909); it was recombined as Pliohippus interpolatus by Trouessart (1905), Gidley (1907), Osborn (1918), Matthew and Stirton (1930) and Savage (1941); it was recombined as Pliohippus (Pliohippus) interpolatus by Stirton (1940); it was considered a nomen dubium by Azzaroli (1988) and Macdonald (1992); it was recombined as Dinohippus interpolatus by Quinn (1955), Webb (1969), Dalquest (1983), Kelly and Lander (1988), Kelly (1995), Prado and Alberdi (1996), MacFadden (1998), Kelly (1998) and Kelly (2000).
It was recombined as Hippidion interpolatum by Hay (1902); it was recombined as Protohippus interpolatus by Gidley (1903) and Matthew (1909); it was recombined as Pliohippus interpolatus by Trouessart (1905), Gidley (1907), Osborn (1918), Matthew and Stirton (1930) and Savage (1941); it was recombined as Pliohippus (Pliohippus) interpolatus by Stirton (1940); it was considered a nomen dubium by Azzaroli (1988) and Macdonald (1992); it was recombined as Dinohippus interpolatus by Quinn (1955), Webb (1969), Dalquest (1983), Kelly and Lander (1988), Kelly (1995), Prado and Alberdi (1996), MacFadden (1998), Kelly (1998) and Kelly (2000).
Synonymy list
Year | Name and author |
---|---|
1893 | Hippidium interpolatum Cope p. 42 |
1902 | Hippidion interpolatum Hay p. 619 |
1903 | Protohippus interpolatus Gidley |
1905 | Pliohippus interpolatus Trouessart |
1907 | Pliohippus interpolatus Gidley |
1909 | Protohippus interpolatus Matthew |
1918 | Pliohippus interpolatus Osborn p. 158 figs. Plates 24.6, 25.13. Text Fig. 126 |
1930 | Pliohippus interpolatus Matthew and Stirton |
1940 | Pliohippus (Pliohippus) interpolatus Stirton p. 192 |
1941 | Pliohippus interpolatus Savage |
1955 | Dinohippus interpolatus Quinn p. 43 |
1969 | Dinohippus interpolatus Webb |
1983 | Dinohippus interpolatus Dalquest |
1988 | Dinohippus interpolatus Kelly and Lander |
1995 | Dinohippus interpolatus Kelly p. 26 |
1996 | Dinohippus interpolatus Prado and Alberdi p. 676 |
1998 | Dinohippus interpolatus Kelly |
1998 | Dinohippus interpolatus MacFadden p. 551 |
2000 | Dinohippus interpolatus Kelly |
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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 interpolatus Cope 1893
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Diagnosis
Reference | Diagnosis | |
---|---|---|
H. F. Osborn 1918 | (Cope, 1893, Osborn, 1918) (1) Distinguished from corresponding teeth of Prowhippus by the small
size of protocone and hypocone; (2) protocone uniting with protoconule; (3) a pli caballin and crochet fold in prefossette, (4) single enamel fold in postfossette; (5) hypostyle region simple, fossettes relatively large, borders relatively simple; (6) crowns curved transversely but not anteroposteriorly; (7) cement abundant. |