CAJ | 학술논문

记述了产自贵州关岭法郎组瓦窑段(上三叠统)短吻贫齿龙一新材料.新标本头后骨骼十分完整,使我们对该海龙的全身骨骼形态有了一个完整的认识,尤其是澄清了其肩带及前、后肢的解剖学特征.短吻贫齿龙牙齿稀少且局限于上、下颌的前端,以及末端指/趾骨(爪)扁平等性状表明,该种不是纯粹的肉食动物.依据新材料,短吻贫齿龙在局部形态上存在个体变异,并确认后肢趾趾式(2-3-4-5-5)可作为该海龙的特征之一.
기술료산자귀주관령법랑조와요단(상삼첩통)단문빈치룡일신재료.신표본두후골격십분완정,사아문대해해룡적전신골격형태유료일개완정적인식,우기시징청료기견대급전、후지적해부학특정.단문빈치룡아치희소차국한우상、하합적전단,이급말단지/지골(조)편평등성상표명,해충불시순수적육식동물.의거신재료,단문빈치룡재국부형태상존재개체변이,병학인후지지지식(2-3-4-5-5)가작위해해룡적특정지일.
A new thaiattosaurian skeleton from the Upper Triassic Wayao Member of the Falang Formation.Guanling area,Guizhou Province,China cab be referred to Miodentosaurus brevis.The postcranial skeleton of the specimen is well-preserved and SO complete that it is worthy to be described.This new specimen provides a full knowledge of the osteology of the thalattosaurian,especially the anatomy of the pectoral girdle and both the fore-and hind.limbs.The presence of a few teeth restricted to the anterior ends of both the upper and lower jaws and dorsoventrally flattened ungual phalanges indicate that M. brevis is not a pure carnivore .With new information ,some individual variations are recognized and the digital formula(2-3-4-5-5)of the pes call be identified a8 one of the diagnostic features for the thalattosaurian.