The premolar is the Molar in the Horse
うまの前きゆう(臼)歯は大きゆう歯である

Tetsuo YOSHIKAWA, Minoru YONEZAWA, Hirotada MATSUURA
1959 Nihon Chikusan Gakkaiho  
doi:10.2508/chikusan.30.141 fatcat:jv4l4kmzuvbfxedwgj23vkkarq