The Natural Canvas / 5168 Mammal Fossils - Sabercats, Mesozoic Mammals, Cetaceans and others Purchase here: ncanvas@aol.com

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Jurassic mammal

Morrison Formation, Jurassic, Wyoming, USA

Ctenacodon -- Ultra-rare 2mm molar of Jurassic allotherian mammal with one root. Extremely rare.

$229