A new paper:
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Four isolated archosaur teeth from Las Hoyas (Cuenca province, Central Spain), one ziphodont and three conical, are described. Current evidence suggests their identification as a carcharodontosaurid akin to Concavenator and a putative spinosaurid theropods, and to a goniopholidid neosuchian based on data from morphology and morphometry, and internal structure. The results of Bivariant Discriminant, and Cluster analysis places the conical teeth between the morphology of Spinosauridae, Pholidosauridae and Goniopholididae, but closer to the last one. However, the internal structure suggests distinct dinosaurian and crocodilian construction, and is proposed as a valid, diagnostic feature possibly able to discriminate between the highly convergent teeth of these lineages. Thus, these findings might represent the second carcharodontosaurid and the first spinosaurid specimens from La HuÃrguina Fm. (late Barremian, 127 MYA, Lower Cretaceous), and suggest the presence of larger sized crocodilian species than those currently identified by complete skeletal remains.
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