Synonymer & Anagrammer | engelsk ord DENTARY

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Eksempler på brug af DENTARY i en sætning

• Distinctive characteristics (synapomorphies) of Metatheria include: a prehensile tail, the development of a capitular tail on the humerus, the loss of tooth replacement on the 2nd and 5th premolars and the retention of decidious teeth on the lower fifth premolars, the lower canines outwardly diverge from each other, the angular process on the dentary is equal to or less than half the length of the ramus, the dentary has a posterior masseteric shelf, and the lower 5th premolar has a "very trenchant" cristid obliqua/ectolophid.
• The mandibular symphysis (the joint between the two halves of the dentary) was fused in Probainognathus, but unfused in Bonacynodon.
• The angular is a large bone in the lower jaw (mandible) of amphibians and reptiles (birds included), which is connected to all other lower jaw bones: the dentary (which is the entire lower jaw in mammals), the splenial, the suprangular, and the articular.
• Young described Eozostrodon heikuopengensis from the Hei Koa Peng locality near Lufeng, based on an associated skull and dentary, as well as a right maxilla and associated dentary.
• Euteleostomes originally all had an endochondral bone, fins with lepidotrichs (fin rays), jaws lined by maxillary, premaxillary, and dentary bones composed of dermal bone, and lungs.
• Fossils referrable to Lesothosaurus may have been known from as early as 1959, when a right dentary (lower jawbone) fragment bearing three teeth was collected by French geologist Jean Fabre from the Red Beds of the Upper Elliot Formation near Mapheteng in Lesotho, Southern Africa, dating to the Early Jurassic (199(?)-190 million years ago).
• This species also features relatively short legs for a tapir caused by a femur length that is shorter than dentary length.
• It is known only from an opalised dentary fragment, with one premolar and two molars in situ, as well as a referred maxillary fragment containing the last premolar and all four molars.
• The dentary is about one sixth the size of Steropodon, and wear facets indicate an "orthal" occlusion with the upper molars.
• Usually in the back of the jaw, on the upper edge, it is connected to all other jaw bones: dentary, angular, splenial and articular.
• According to Sues (1990), Staurikosaurus can be distinguished based on the following 14 features: (i) a mandible almost as long as the femur, suggesting a proportionately large head; (ii) a fairly deep but thin dentary with 13 to 14 teeth and with a well-developed retroarticular process; (iii) a vertebral column with 9 to 10 cervical, 15 dorsal, 2 sacral, and more than 40 caudal vertebrae.
• It had six teeth in each premaxilla of the upper jaw, and may have had 14 teeth in the maxilla and 19 in the dentary of the lower jaw.
• Members of this clade are characterized by having narrow and tall dentaries compared to other monotremes, and a prominent ascending ramus of the dentary.
• The specimen consists of the right dentary, with the first incisor but missing the crown, the whole of the horizontal ramus with intact premolar three and molars one to four.
• Venom fangs enormously developed; a few teeth on the palatines, none on the pterygoids; mandibles edentulous anteriorly, with 2 or 3 very small teeth in the middle of the dentary bone.
• Benton also indicated some unique derived traits, or autapomorphies, for the species: a long basipterygoid process on the braincase; a dentary that is short in relation to the total length of the lower jaw; an ilium that has a back end that is subquadrate instead of rounded.
• The maxillary and dentary teeth are laterally compressed, sometimes with a slightly serrate cutting edge, while the premaxillary teeth are conical.
• There were three premaxillary teeth, with the first two small and conical and the third enlarged to form the upper caniniform, counterpart to the even larger lower caniniform, which was the first dentary tooth.
• Like more derived archosaurs, the lower jaw had mandibular fenestrae (openings at the lower jaw), formed by the junction of the dentary with other jaw bones (surangular and angular).
• Additional material (designated MPEF-PV 1157) included jugals, a right dentary, teeth, atlas vertebra, neck vertebra (?) 9, back vertebrae (?)7, 10, 13, fused sacral centra (5 total), an assortment of distal caudals, ribs, the right femur, a fragmentary left metatarsal 2, pedal phalanges 2-1, 2–2, and 3-3.
• The tip of the snout was edentulous, but the premaxillary, maxillary, and dentary bones bore both pointed and leaf-shaped serrated teeth.
• The skull also exhibits features consistent with significant cranial kinesis: a synovial joint between the braincase and the frontals and a loose articulation between the dentary and the angular/surangular.
• These include: The rostral end of dentary possessing a concave notch housing the most mesial alveolus and a dorsally-directed prong on the rostromesial margin of the notch, curving lateral furrows on the lateral surface of the dentary, a surangular with a hypertrophied gutter-like concavity near the rostrodorsal border, with the caudal end of the concavity containing foramina that perforate the body of the surangular, a low coronoid process on the surangular with a concave area located caudodorsally, and an ulna and radius with a tear-drop shaped cross-section at the mid-shaft.
• The holotype specimen, IVPP 88402 (large individual), which is considered to exemplify the genus and species, is the largest and most complete of the five, consisting of the right dentary (lower jaw) with some teeth, 5 cervical vertebrae, 28 caudal vertebrae, 5 sacral vertebrae, 9 ribs, 15 chevrons, an isolated scapula, both coracoids, both humeri, isolated radius, both ulnae, a virtually complete manus, both ilia, both ischia and both femora.
• The specimen consists of a very fragmentary skeleton with skull elements, including a right quadrate, a left frontal, a piece of the left maxilla, a fragment of the dentary, a chevron, the upper parts of both ischia, the middle shaft of the right pubis, most of the second right metatarsal, a toe bone and several loose teeth.

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