Camarillasaurus is a genus of Spinosaurid theropod dinosaur known fromCamarillay Cretaceous Period; of Camarillas, northeastern Spain.


Its remains were discovered in the Camarillas Formation. The type species, Camarillasaurus cirugedae, was described by Bárbara Sánchez-Hernández and Michael J. Benton. Originally described as a basal species of ceratosaur; latest publishments in 2019 has been reclassified the theropod as a potential member species to the Spinosauridae. [1][2][3]

Bird chirp spiny

An illustration of the Camarillasaurus. Credit: Birb Chirp on tumblr

Nearly no clarified information is known about this particular Theropod; other than it was once thought to be a representative creatosaur and now it is currently estimated as, quite likely the smallest genus and species of Spinosauridae known so far.[4] Its in such a veague position other than being a confirmed spinosauridae member; that its subfamily its unclearified as well. Whether it was a Baryonychinae or Spinosaurinae is unknown; albeit considered as a more 'basal' member of the family of Theropods. Baryonychinae affinity could potentially be more than likely.

Behavior-wise a research conducted on the brain cavity and brain structure on Spinosaurids; examplars taken from Baryonychine member species; shown to be no identifiable differentiation from other theropods; particularly other Megalosauridae. Thus presumably indicating that their insticts; behavior and noticeably dietary preferences were either qutie the same and/or very similar.

This compared with the fact fellow Baryonychinae such as Iberospinus and Baryonyx have found to consume fish and Iguanadontids as well as more distant Spinosaurinae such as Siamosaurus and Irritator found to consume more varied and diverse prey items such as Sauropods and larger pterosaurs shows that these Spinosaurids were not picky or hyperspecialized eaters ( such as gharials, comromants and penguins ) and instead it would consume any type of prey item available to them; whether terrestrial or aquatic. ( such as orinoco crocodiles; slender snouted crocodiles of africa; freshwater crocodiles of australia; false or malay gharials; pelicans; skuas; jeagers and such ) Camarillasaurus itself likely gone after available smaller prey items due to it rather dimunitive size. Perhaps fish and amphibians from rivers, waterways as well as small mammalians, smaller non-avian dinosaurs and avians around its habitat.

This theropods preference for semi-aquatic or aquatic habitat is truly unclear; as the original 2010 bio isotope analysis found out differentiated species and genuses of Spinosaurids had varied and different results compared to one another. Its even unknown if it had the enlarged and extensive tail structure found within some Spinosaurinae; albeit considering its more of a basal member; its unlikely.

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