hypocone


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hypocone

[′hī·pə‚kōn]
(anatomy)
The posterior inner cusp of an upper molar.
(invertebrate zoology)
Region of a dinoflagellate posterior to the girdle.
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References in periodicals archive ?
Also, the Chapala specimens share with Postcopemys a paraloph not aligned with the anterior arm of the hypocone in upper molars, but with the entolophid aligned with the anterior arm of the protoconid in lower molars, and the protolophule is absent in M1.
While in Lissasfa the metacone is placed posteriorly with respect to the hypocone, in La Bullana 2B the metacone is placed anteriorly.
3 (most-derived dichobunoids [dichobunine Dichobune, hyperdichobunine dichobunids; might include other dichobunids with quadrate hypoconiferous Ms] plus caenotheriids); Ms relatively selenodont, quadrate; tritubercular distal lobe with distinct metacone, metaconule, and hypocone; TV continuous; paraconule reduced/lost (OW).
Rodriguez (9) states that past indigenous peoples are characterized by presenting high frequencies of winging, crowding, reduced hypocone, layered fold and P point of the protostylid, which places them closer to the Paleo-Indian sinodontes of the Mongoloid Dental Complex.
These traits are UI1 shoveling (0-1, 2-3, 4+), UM2 hypocone (0-1, 2-3, 4+), UM1 Carabelli's trait (0-1, 2-4, 5+), and LM1 protostylid (0, 1, 2+).
P pyrenaicus can be distinguished from the other Pseudoloris species by its medium size and by several morphological features, such as the absence of a distinct paraconid and the thickened paracristid in the lower molars, the large hypoconulid in the [M.sub.3], the small hypocone and paraconule in the [M.sup.1] and [M.sup.2], and the absence of these two cusps in the [M.sup.3].
The antero-lingual cingulum extends up to the base of hypocone. The entostyle is absent.
The protocone and hypocone in premolars are separate on the occlusal surface.