metaconule

met·a·con·ule

(met'ă-kon'ūl),
The distal intermediate cusp of an upper molar tooth.
[meta- + G. kōnos, a cone]

metaconule

(mĕt-ă-kŏn′ūl)
The distal intermediate cusp of an upper molar tooth.
References in periodicals archive ?
The protocone and the metaconule are oppressed to form a contiguous proto-metaconule complex.
M1 subtriangular, with well-developed metaconule united to the protocone, lingual part with a tendency to reduction.
The metaconule is present posterior to the protocone.
1 (basalmost artiodactyls [paraphyletic]: diacodexid, primitive [unassigned, some dichobunine] dichobunid dichobunoids): Ml-3 (Ms) bunodont, triangular; metaconule unenlarged; no hypocone (Old World [OW] origin).
El modelo de seis rasgos propuesto en esta investigacion presenta una alternativa de clasificacion Sinodonte/Sundadonte complementaria que incluye cinco rasgos nuevos de alto poder clasificatorio: ShovelUI2 = Shoveling UI2, IGrooUII = Interruption Groove UI1, MelUMI = Metaconule o Cusp 5 UM1, MeldLMI = Metaconulid o Cusp 7 LM1, YPattLM2 = Y Pattern LM2.
(SDSM 82103)--Wang's (5) diagnosis for the subfamily is based on cranial characters and dental characters of P4, M1, and m1 which cannot be used to determine the identification of the tooth and "the subfamily is mainly defined by its lack of synapomorphics for the other two subfamilies." The lack of the paraconule and metaconule suggest a primitive morphology and support the assignment to the Hesperocyoninae.
The metaconule is pyramidal in shape with a moderately developed preme tacrista that is mesiolingually directed to join the slight lingual cingulum between protocone and metaconule.
The tooth can be described as follows: ectoloph is typically W-shaped; hypocone is absent but a postprotocrista extends posteriad from the metaconule as a curved sloping ridge with a small talon formed by its base.