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Monofenestrata
The Monofenestrata are an unranked group of pterosaurs that includes the family Wukongopteridae and the suborder Pterodactyloidea.〔
The clade Monofenestrata was in 2009/2010 defined as the group consisting of ''Pterodactylus'' and all species sharing with ''Pterodactylus'' the synapomorphy, shared derived trait, of an external nostril confluent with the antorbital fenestra, the major skull opening on the side of the snout. The name is derived from Greek ''monos'', "single", and Latin ''fenestra'', "window". The concept was inspired by the discovery of ''Darwinopterus'', a species combining a pterodactyloid-type skull with a more basal build of the remainder of the body.〔Lü, J., Unwin, D.M., Jin, X., Liu, Y. and Ji, Q. (2010). "Evidence for modular evolution in a long-tailed pterosaur with a pterodactyloid skull." ''Proceedings of the Royal Society B'', 277(1680): 383-389. PMID 19828548〕
The earliest known monofenestrate fossils have been found in the Stonesfield Slate formation of the United Kingdom, which dates to the Bathonian stage of the Middle Jurassic, dated to about 166 million years ago.〔Buffetaut, E. and Jeffrey, P. (2012). "A ctenochasmatid pterosaur from the Stonesfield Slate (Bathonian, Middle Jurassic) of Oxfordshire, England." ''Geological Magazine'', (advance online publication) 〕
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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