Tematica Animali preistorici

Yaverlandia bitholus Galton, 1971

Phylum: Chordata Haeckel, 1874

Subphylum: Vertebrata Cuvier, 1812

Classe: Dinosauria Laurenti, 1768

Ordine: Ornithischia Seeley, 1888

Famiglia: Pachycephalosauridae Sternberg, 1945

Genere: Yaverlandia Galton, 1971

Descrizione

Inizialmente era stato classificato come il membro più antico di pachycephalosauria, ma un successivo studio, condotto da Darren Naish ha dimostrato che si trattava in realtà di un teropode, forse un maniraptora.

Diffusione

Conosciuto solamente per un fossile parziale, che consiste in un frammento di cranio l'animale risalirebbe al Cretaceo inferiore, all'interno della Formazione Wessex, sulla Isola di Wight.

Bibliografia

–Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Europe)". In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 556-563.
–Batten, D. J. (ed.) 2011. English Wealden Fossils. The Palaeontological Association, London.
–"Magnetostratigraphy of the Lower Cretaceous Vectis Formation (Wealden Group) on the Isle of Wight, Southern England."
–Naish, Darren; Martill, David M. (2008). "Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery: Ornithischia". Journal of the Geological Society, London. 165 (3): 613-623.
–Sullivan, R.M. 2006. A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia). New Mexico Museum of Natural History and Science Bulletin 35:347-365.
–Galton, P.M. (1971) "A primitive dome-headed dinosaur (Ornithischia: Pachycephalosauridae) from the Lower Cretaceous of England and the function of the dome of pachycephalosaurids". Journal of Paleontology, Vol. 45, No. 1, Pages 40-47.
–Watson, D.M.S (1930) Proceedings of the Isle of Wight Natural History Society. 2, 60.
–BBC: Dinosaurs of The Isle of Wight – Ornithischians.
–Vectisaurus valdensis, a new Wealden Dinosaur (J. W. Hulke) Quarterly Journal of the Geological Society, 35, 421-424, 1 February 1879.
–Sereno, P. C., 2000: The fossil record, systematics and evolution of pachycephalosaurs and ceratopsians from Asia. 480-516 in Benton, M. J., Shishkin, M. A., Unvin, D. M. & Kurochkin, E. N., (eds.) 2000: The Age of Dinosaurs in Russia and Mongolia. Cambridge University Press, Cambridge, xxxix-696.
–Sullivan, R. M., 2006: A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia). New Mexico Museum of Natural History Bulletin 35: 347-365.
–"English Wealden fossils: an update". Proceedings of the Geologists' Association. 129 (2): 171-201.

	Data: 05/08/2008 Emissione: Animali preistorici e minerali Stato: Guinea-Bissau