fossettid

plural fossettids

1. teethbiologyA small depression in the crown of a lower tooth.

   An elongate fossettid separates the entoconid and hypoconid.

   1979, Ralph Nichols, Additional Early Miocene Mammals from the Lemhi Valley of Idaho, page 4

   3 more examples

   State 1 is coded for those taxa with a substantial difference in the depth of the basins between the central fossettid and all others, such that a mid- or late wear specimen will have the central fossettid still present and clearly-defined, while the others will all be worn away.

   2005, Samantha Sara Brittany Hopkins, Evolutionary History and Paleoecology of Aplodontoid Rodents, page 74

   The p1 is smaller than the canine and is little more than a peg-like structure, ovoid in occlusal view with a tiny fossettid in the middle.

   2008, Eric J. Sargis, Marian Dagosto, Mammalian Evolutionary Morphology, page 149

   When compared with taxa from the Mustersan and Tinguirican, Patagonhippus canterensis n. gen. et n. sp. and P. Dukei n. gen. et n. sp. share the absence of a posterior fossettid, but have a more hypsodont dentition.

   2010, Richard H. Madden, Alfredo A. Carlini, Maria Guiomar Vucetich, The Paleontology of Gran Barranca, page 149