| 释义 |
talonid Zool.|ˈtælənɪd|
[f. talon n. 3 f + -id5.]
A flattened cusp on a mammalian lower molar tooth, corresponding to the talon on an upper molar.
1897H. F. Osborn in Amer. Naturalist XXXI. 1002 It [sc. the talon] invariably appeared first in the lower molars (where we may distinguish it as the ‘talonid’). 1919[see hypoconid]. 1922W. K. Gregory Orig. & Evol. Human Dentition i. 38 The premolars..already possessed incipient talonid spurs. Ibid. 39 The talonids had not yet acquired basins or fossæ. 1968[see hypoconid]. 1979Nature 20 Sept. 213/2 The isolated lower second molar of the right side..has the basic tribosphenic pattern with an elevated trigonid and a low talonid. |