出典:Wikipedia
出典:『Wikipedia』 (2011/03/01 02:17 UTC 版)
Exaeretodon is a genus of traversodontid cynodont; several species are known, from various formations. E. argentinus, E. frenguelli, and E. vincei are from the Carnian-age (Upper Triassic) Ischigualasto Formation of Argentina. E. major and E. riograndensis are from the Ladinian-age (Middle Triassic) portion of the Santa Maria Formation of Brazil. E. statisticae is from the Carnian-age Maleri Formation of India. This genus was an herbivore up to 1.8 meters long (5.9 ft), with a specialized grinding action when feeding.