The Natural Canvas / 5174 Mammal Fossils - Sabercats, Mesozoic Mammals, Cetaceans and others Purchase here: ncanvas@aol.com

5174.jpg

Jurassic Mammal

Morrison Formation, Jurassic, Wyoming, USA

Ctenacodon -- Ultra-rare 2mm multituberculate mammal premolar (p4). Extremely distinctive

$229