Camarillasaurus

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Camarillasaurus
Temporal range: Early Cretaceous, 130–125 Ma
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Camarillasaurus.jpg
Vertebra and rib fossils
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: †Spinosauridae
Subfamily: †Spinosaurinae (?)
Genus: †Camarillasaurus
Sánchez-Hernández & Benton, 2014
Type species
†Camarillasaurus cirugedae
Sánchez-Hernández & Benton, 2014

Camarillasaurus (meaning "Camarillas reptile") is a genus of spinosaurid dinosaur from the Early Cretaceous period (Barremian) of Camarillas, Teruel Province, in what is now northeastern Spain. Described in 2014, it was originally identified as a ceratosaurian theropod, before being referred to the Spinosauridae in 2021.

History of research[]

Sacrum and centrum
Restored as a spinosaur

Fossils of Camarillasaurus were discovered in the Camarillas Formation. The type species, Camarillasaurus cirugedae, was described by palaeontologists Bárbara Sánchez-Hernández and Michael J. Benton. The describers considered it to be a basal ceratosaur, somewhat unusual given its young age.[1] However, in an abstract given at the EAVP 2019 conference, Oliver Rauhut and colleagues suggested it is a member of the Spinosauridae rather than a ceratosaur, based on characters of the posterior caudal vertebrae and newly excavated material at the type locality;[2] a chapter of a 2019 dissertation by Adun Samathi concurred with that conclusion.[3] In 2021, the chapter was formally published as a paper, with the same conclusion; Samathi noted similarities with spinosaur material from Thailand and other taxa within the family. Camarillasaurus is one of four spinosaurid taxa known from the Iberian peninsula, the others being Baryonyx, Vallibonavenatrix, and Iberospinus.[4][5]

References[]

  1. ^ Sánchez-Hernández, B. R.; Benton, M. (2014). "Filling the ceratosaur gap: A new ceratosaurian theropod from the Early Cretaceous of Spain". Acta Palaeontologica Polonica. 59 (3): 581–600. doi:10.4202/app.2011.0144.
  2. ^ O. W. M. Rauhut, J. Ignacio Canudo, D. Castanera A (2019) A REAPPRAISAL OF THE EARLY CRETACEOUS THEROPOD DINOSAUR CAMARILLASAURUS FROM SPAIN XVII Conference of the EAVP – Brussels, Belgium
  3. ^ Adun Samathi (2019) CHAPTER 6: "A Spinosaurid from Thailand and the Reassessment of Camarillasaurus from the Early Cretaceous of Spain" in THEROPOD DINOSAURS FROM THAILAND AND SOUTHEAST ASIA PHYLOGENY, EVOLUTION, AND PALEOBIOGEOGRAPHY Dissertation Thesis, University of Bonn pp.161-181
  4. ^ Samathi, Adun; Sander, P. Martin; Chanthasit, Phornphen (2021-02-08). "A spinosaurid from Thailand (Sao Khua Formation, Early Cretaceous) and a reassessment of Camarillasaurus cirugedae from the Early Cretaceous of Spain". Historical Biology: 1–15. doi:10.1080/08912963.2021.1874372. ISSN 0891-2963. S2CID 233884025.
  5. ^ Mateus O, Estraviz-López D (2022). "A new theropod dinosaur from the Early Cretaceous (Barremian) of Cabo Espichel, Portugal: Implications for spinosaurid evolution". PLOS ONE. 17 (2): e0262614. doi:10.1371/journal.pone.0262614.


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