ammonites
Miacis cognitus Gustafson 1986 (placental mammal)

Mammalia - Theriiformes

Full reference: E. P. Gustafson. 1986. Texas Memorial Museum Bulletin 33

Belongs to Miacis according to E. P. Gustafson 1986

Sister taxa: Miacis australis, Miacis deutschi, Miacis exiguus, Miacis hargeri, Miacis hookwayi, Miacis igniculus, Miacis invictus, Miacis latidens, Miacis latouri, Miacis lushiensis, Miacis medius, Miacis parvivorus, Miacis petilus, Miacis sylvestris, Miacis vulpinus, Miacis washakius, Prodaphaenus uintensis

Type specimen: Its type locality is Reeves Bonebed, which is in a Chadronian terrestrial horizon in Texas

Ecology: arboreal carnivore

Average measurements (in mm): P4 6.80 x 4.30, M1 5.25 x 7.65, M2 3.80 x 6.00