protoconid

pro·to·co·nid

(prō'tō-ko'nid),
The mesiolingual cusp of a lower molar tooth in a mammal.

pro·to·co·nid

(prō'tō-kon'id)
1. The mesiobuccal cusp of human lower molars.
2. The first lower molar cusp to develop evolutionarily.
See also: protocone
[protocone + -id]

pro·to·co·nid

(prō'tō-kon'id)
Mesiolingual cusp of mammalian lower molar tooth.
[protocone + -id]
References in periodicals archive ?
NAP XV 162'08, a right m2 is quite worn lingually, missing the apex of the metaconid, but preserving a strong, globose protoconid (Fig.
Small, brachydont cricetid rodent having protolophule II [paraloph] not aligned with the anterior arm of the hypocone in upper molars (M), but with the entolophid aligned with the anterior arm of the protoconid in lower molars (m).
690; Table I; Figure 2f) has an anteriorly projected paraconid without enamel band; a metaconid enamel band is present; meta-entoconid fold shallow and reflected 45[degrees] anteromesialy; ento-hypoconid fold deeper and less inclined (85[degrees]) anteromesialy than meta-entoconid fold; hypoconid buccolingually broad, looks like a trigonid size; anterior facet of the trigonid convex; the lingual enamel band extends to the metaconid to the anterolingual side of the hypoconid, without covering it totally; buccal enamel fold deeper; buccal enamel band covering the anteromesial protoconid facet through posteromesial hypoconulid facet; hypoconid lingually projected; buccal enamel broader than lingual enamel.
Ankylodon is characterized by having moderate curvature of the trigonid, reduced paraconid, strongly convex buccal margin of the protoconid and metaconid, and boarder nature of the tooth when compared to Metacodon (1) all of which are seen in PTRM 1600.
A well developed furrow separates the hypoconid from the strong protoconid on the buccal side.
minor") by a more obtuse angle between the protoconid and paraconid on ml; from the Asian species St.
Enamel is missing on the posterior face of the protoconid and mesiobuccal corner of the protoconid, and the posterior half of the hypoconid is missing.
The measurement for lower carnassial length (LCL) was taken along the paracristid crest between the outer walls of the paraconid and protoconid [ILLUSTRATION FOR FIGURE 2 OMITTED].
The protoconid unites with metaconid, both being curved inward.
The both cristids of the hypoconid are contiguous with the protoconid and the entoconid antero-posteriorly.