Avalonianus

Avalonianus; Temporal range: Late Triassic, Rhaetian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Genus:	†Avalonianus; Kuhn, 1961
Species:	†A. sanfordi
Binomial name
	†Avalonianus sanfordi; Seeley, 1898
Synonyms
	Avalonia Seeley, 1898 (preoccupied); Picrodon? Seeley, 1898;

Holotype tooth of the possible synonym Picrodon

Avalonianus is a highly dubious and possibly invalid genus of archosaur from the Late Triassic of England. It was first described in 1898 by Harry Seeley with the name Avalonia,^[1] but that name was preoccupied (Walcott, 1889), so Oskar Kuhn renamed it in 1961, albeit with no epithet (although Seeley added the epithet sanfordi in 1898^[1]). It was thought to be a prosauropod, but later analysis revealed it was actually a chimera,^[2] with the original teeth coming from a non-dinosaurian ornithosuchian (or possibly an early theropod), and later-referred post-cranial prosauropod remains (which were renamed Camelotia).^[3] The only sufficient remains attributable to Avalonianus are several now lost fossil teeth from the chimera that were referred to Archosauria.

References[]

^ ^a ^b H. G. Seeley. 1898. On large terrestrial saurians from the Rhaetic Beds of Wedmore Hill, described as Avalonia sanfordi and Picrodon herveyi. Geological Magazine, decade 4 5:1-6
^ P. M. Galton. 1998. Saurischian dinosaurs from the Upper Triassic of England: Camelotia (Prosauropoda, Melanorosauridae) and Avalonianus (Theropoda, ?Carnosauria). Palaeontographica Abteilung A 250(4-6):155-172 [M. Carrano/M. Carrano/M. Carrano]
^ Go to Camelotia for more information

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[Seeley1898-1] H. G. Seeley. 1898. On large terrestrial saurians from the Rhaetic Beds of Wedmore Hill, described as Avalonia sanfordi and Picrodon herveyi. Geological Magazine, decade 4 5:1-6

[2] P. M. Galton. 1998. Saurischian dinosaurs from the Upper Triassic of England: Camelotia (Prosauropoda, Melanorosauridae) and Avalonianus (Theropoda, ?Carnosauria). Palaeontographica Abteilung A 250(4-6):155-172 [M. Carrano/M. Carrano/M. Carrano]

[3] Go to Camelotia for more information

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