Trigonid


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Related to Trigonid: lophodont

Tri´go`nid


4.(Zool.) The cutting region of the crown of an upper molar, usually the anterior part. That of a lower molar is the Tri"go*nid ( ).
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The trigonid and talonid are connected to the prehypocristid and preentocristid by the postprotocristid and the postmetacristid with prehypocristid and preentocristid, respectively.
Hexaprotodon (Mammalia: Hippopotamidae) from the Pinjor Formation of Bhimber, Azad Kashmir, Pakistan
The paraconid was probably absent, although the state of preservation of the tooth does not permit a firm conclusion to be reached, although close inspection reveals that the trigonid valley was very small, tall and closed anteriorly.
Systematics of african amphicyonidae, with descriptions of new material from Napak (Uganda) and Grillental (Namibia)
m1 Antero-posterior Trigonid Talonid length width width PCS Sorex 1.27 0.75 0.80 S.
A fossil shrew (mammalia, soricidae) from the Pipe Creek Sinkhole (late Neogene: hemphillian), Indiana
MBLUZ-P-3.912: ml lacks trigonid; left mandibular fragment with talonid of m3.
New remains of Mixotoxodon larensis Van Frank 1957 (Mammalia: Notoungulata) from Mene de Inciarte Tar Pit, North-Western Venezuela/Nuevos restos de Mixotoxodon larensis Van Frank 1957 (Mammalia: Notoungulata) del pozo de asfalto de Iciarte, Noroeste de Venezuela/Novos restos de Mixotoxodon larensis Van Frank 1957 (Mammalia: Notoungulata) do poco de asfalto de Iciarte, Noroeste da Venezuela
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.
An occurrence of the fossil insectivore, Ankylodon progressus in the Brule Formation of southwestern North Dakota and implications regarding Ankylodon systematics
The trigonid is long and massive with a short heel.
Dire wolf, Canis dirus (mammalia; carnivora; canidae), from the late Pleistocene (rancholabrean) of east-central Sonora, Mexico
The trigonid is formed by subequal protoconid and metaconid with the protoconid slightly mesiad of the metaconid.
New record of anthracotheriidae (artiodactyla: mammalia) from the middle Eocene Yegua Formation (Claiborne Group), Houston County, Texas
The trigonid and talonid are not equal in size; the trigonid is narrower than the talonid.
Dorcatherium (Mammalia: Tragulidae) from Lower Siwaliks of Dhok Bun Amir Khatoon, Punjab, Pakistan
Abbreviations.- AL2-C, Alcoy-2C; AL2-D, Alcoy-2D; CLC, Calicasas; L, Length; LB2B, La Bullana 2B; LB3, La Bullana 3; MN, European Neogene land mammal Units; MNA, Mina; PUR, Purcal; SCSIE (UV), Servei Central de Suport a la Investigacio Experimental de la Universitat de Valencia; THC, Tollo de Chiclana; TLW, talonid width; TRW, trigonid width; W, Width.
First early Pliocene micromammal faunas from the Venta del Moro area (Cabriel Basin, Spain): new data on the Messinian dispersal of Debruijnimys
SDSM 82104 exhibits tall, conical cusps on the trigonid and a nearly identical size and morphology to the paratype specimen.
The fossil carnivores of the turtle butte assemblage (Arikareean), Tripp County, South Dakota
Siamotragulus and Yunnanotherium differ from those of the studied samples in: more selenodont and hypsodont aspect premetacristid is well developed and closes the anterior side of the trigonid and a strong ectostylid (Thomas et al.
New Remains of Tragulids (Mammalia Tragulidae) from the Dhok Pathan Formation of Hasnot (Late Miocene) Pakistan
The lower carnassial suffers a marked reduction of the trigonid with regard to the talonid, which becomes much longer.
Paleodiversity of the Superfamily Ursoidea (Carnivora, Mammalia) in the Spanish Neogene, related to environmental changes

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