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About: Concavispina     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPrehistoricReptilesOfAsia, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatTriassicReptilesyago:Animal100015388yago:Chordate101466257yago:LivingThing100004258yago:Object100002684yago:Organism100004475yago:PhysicalEntity100001930yago:Reptile101661091yago:Vertebrate101471682yago:Whole100003553yago:WikicatPrehistoricReptilesOfAsia New Facet based on Instances of this Class

Concavispina is an extinct genus of thalattosaur reptile from the early Late Triassic (Carnian stage) Xiaowa Formation of Guangling, Guizhou, southern China. It contains a single species, Concavispina biseridens. It is known only from the holotype ZMNH M8804, a nearly complete 364 cm long skeleton. Concavispina can be differentiated from other thalattosaurs by possessing two rows of blunt teeth on the anterior part of the maxilla (upper jaw bone) and a V-shaped notch on the dorsal margin of each neural spine in the dorsal (back) vertebrae. Both its generic and specific names refer to these autapomorphies (unique characteristics), as Concavispina means "concave spine" and biseridens means "two rows of teeth". It is thought to be most closely related to Xinpusaurus, as both taxa share three