carnassial tooth

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  • noun

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the last upper premolar and first lower molar teeth of a carnivore

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On the basis of carnassial tooth morphology, dentition size, structure and size of mandible and stratigraphic range of fossil finds, the Percrocuta material is referred to a separate family, Percrocutidae.
The cranial measurements of the two adult, unsexed specimens were as follows: greatest length of skull, 89.9, 87.9; condyloincisive length, 82.9, 83.1; condylocanine length, 77.9, 78.4; palatal length, 33.4, 33.1; length of rostrum, 22.7, 21.5; breadth across upper carnassial tooth, 5.5, 5.6; interorbital constriction, 15.9, 17.3; postorbital constriction, 32.1, 32.0; zygomatic breadth, 58.9, 56.6; breadth of braincase, 45.0, 42.4; mastoid breadth, 40.5, 37.5; length of maxillary toothrow, 27.0, 26.4.
The cranial measurements of the one adult, unsexed specimen were as follows: greatest length of skull, 121; condyloincisive length, 119; condylocanine length, 109.4; palatal length, 58.1; length of rostrum, 44.3; breadth across upper carnassial tooth, 5.9; interorbital constriction, 24.8; postorbital constriction, 29.6; zygomatic breadth, 65.3; breadth of braincase, 44.6; mastoid breadth, 45.9; length of maxillary toothrow, 50.1.
The measurements of our adult female were as follows: greatest length of the skull, 169.0; condyloincisive length, 166.0; condylocanine length, 149.0; palatal length, 87.0; length of rostrum, 74.0; breadth across upper carnassial tooth, 9.4; interorbital constriction, 25.8; postorbital constriction, 34.8; zygomatic breadth, 82.7; breadth of braincase, 55.1; mastoid breadth, 54.1; length of maxillary toothrow, 77.1.
Dasyuroids lack a specialized carnassial tooth; the four molars ([M.sub.1]-[M.sub.4]) (see Luckett 1993 for terminology) are similar in structure (Archer 1976, 1978).