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2 results for “Peirosauridae”
Data from: A peirosaurid mandible from the Albian (Lower Cretaceous) of Algeria and the taxonomic content of Hamadasuchus (Crocodylomorpha, Peirosauridae)
<p><span>Peirosaurids form an extinct clade of terrestrial crocodylomorphs known from the Cretaceous of Africa and South America. Here, we describe a new mandibular ramus attributable to <em>Hamadasuchus</em> cf. <em>rebouli</em> from the Albian/Cenomanian of La Gara Samani (Algeria). We propose an emended diagnosis for this taxon, originally described from a left dentary fragment from the Kem Kem beds of Morocco and discuss the assignation of the specimens currently referred to it. Using ontogenetic series of extant crocodylians, we show that several mandibular characters commonly used to differentiate between close taxa instead record intraspecific or ontogenetic variability. On the other hand, reliable mandibular characters allow us to propose that the current taxonomic content of <em>Hamadasuchus</em> <em>rebouli</em> should be reduced to three specimens, pending future description of relatable cranial remains that will confirm or not this hypothesis. Finally, we demonstrate the importance of mandibular characters in phylogenies, by recovering the new specimen from La Gara Samani as closely related to North African peirosaurids on the basis of a data matrix designed solely on mandibular characters.</span></p>
Data from: A peirosaurid mandible from the Albian (Lower Cretaceous) of Algeria and the taxonomic content of Hamadasuchus (Crocodylomorpha, Peirosauridae)
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