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Mammalia - Artiodactyla - Diacodexeidae
It was recombined as Tapochoerus egressus by McKenna (1959), Gazin (1968), Golz (1976), Stucky (1998) and Theodor et al. (2007).
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|M. C. McKenna 1959||Primitive dichobunid artiodactyl in which the teeth are more bunodont than selenodont; the hypocone is retained on M1 and/or M2, the metaconules are large but are neither hypertrophied nor markedly displaced and, when unworn, possess five posterior crests; there is neither a mesostyle nor ectoloph ribbing on M1 and/or M2, strong diastemata isolate the double-rooted p2; p3 is trenchant and lacks a metaconid; p4 is also trenchant but possesses a distinct entoconid and a metaconid which separates from the protoconid high on the crown; m1 has a strong paraconid separated from the metaconid but not as widely separated as in Antiacodon or Auxontodon, m2 has a variably separated paraconid, and m3 has a fused single lingual trigonid cusp; all the lower molars are elongate, with hypo- conulids closely similar to those of Hexacodus.|