Anterior molar -molars are the back teeth in animals used in grinding. The anterior molars are more towards the front.

Archonta - group consisting of primates, bats, tree shrews, and colugos.

Caniformia - group consisting of dogs, bears, raccoons, weasels, and seals.

Creodonts - first thought to be ancestors of carnivorous mammals. They ranged from wolf-like to mongoose-like mammals.

Edentates - group consisting of anteaters, sloths, and armadillos.

Evolutionary convergence - independent evolution to a very similar body form in distantly related lineages.

Feliforma - group consisting of cats, hyenas, civets, and mongooses.

Glires - group consisting of rodents, rabbits, and elephant shrews.

Insectivora - group consisting of moles, shrews, and hedgehogs.

Landbridge - isolated continents with limited connections between them.

Mandibular flanges - rim of lower jaw of mammals.

Phalanx - compact mass banded together for a common purpose.

Paleopathology - study of past bodily disease, infection, or injury.

Premolar - tooth nearer to the front of the mouth than molars.

Ungulates - the hoofed mammals including whales.

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