|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Ungulata - Merycoidodontidae
It was recombined as Merychyus zygomaticus by Cope (1884), Scott (1890) and Scott (1893).
|Year||Name and author|
|1878||Ticholeptus zygomaticus Cope p. 380|
|1884||Merychyus zygomaticus Cope p. 545|
|1890||Merychyus zygomaticus Scott|
|1893||Merychyus zygomaticus Scott|
|1903||Poatrephes paludicola Douglass|
|1906||Ticholeptus zygomaticus Douglass p. 567|
|1907||Ticholeptus zygomaticus Douglass|
|1920||Ticholeptus zygomaticus Loomis|
|1937||Ticholeptus zygomaticus Thorpe p. 198 figs. PLXXIX,figs. 1-2|
|1937||Poatrephes paludicola Thorpe p. 200 figs. Fig. 145 ; PI. XXVII, figs. 1-2|
|1941||Ticholeptus zygomaticus Schultz and Falkenbach p. 85|
|1988||Ticholeptus zygomaticus Kelly and Lander|
|1998||Ticholeptus zygomaticus Lander|
|2007||Ticholeptus zygomaticus Stevens and Stevens p. 164|
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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.
|C. B. Schultz and C. H. Falkenbach 1941||
SKULL.-Slightly longer but approximately same width as that of T. hypsodus; zygomatic arch similar to that of T. hypsodus and more robust than in T. tooheyi; postglenoid process slightly lighter than in T. hypsodus.
MANDIBLE.-Equal to some examples of T. hypsodus.
DENTITION.-Superior and inferior series approximately equal to large examples of those of T. hypsodus, but slightly heavier and longer than average of that species.