Damiani

Fortuny

Goloboff

Howie

Huang

Ingavat

Jupp

Kamphausen

Maganuco

Meng

Nakajima

Pawley

Schoch

Sidor

Steyer

Sulej

Swofford

Säve-Söderbergh

Warren

Watson

Yates

Zhang

Zittel

PeerJ

A second species ofYuanansuchus,Y. maopingchangensis, is erected for new temnospondyl material from the Maopingchang site, Yuanan County, Hubei Province, China. These specimens are from the same horizon that producedY. laticeps, the type species.Y. maopingchangensisshares the following features withY. laticeps: postorbital portion of skull occupied more than 1/3 of skull length; tabular horn directed laterally; lateral line sulci continuous, well impressed; supraorbital sensory canal enters lacrimal; preorbital projection of jugal less than half length of snout; and vomerine plate short. However,Y. maopingchangensisdiffers fromY. laticepsin having an elongated skull, frontal extending posteriorly to the level of the posterior orbital margin, closed otic fenestra, cultriform process of parasphenoid extending to the level of the anterior margin of the interpterygoid vacuities, and absence of fodina vomeralis. Analysis of a new capitosaur phylogenetic data matrix, containing 56 characters and 29 species, confirms that the two species from Yuanan are sister taxa and that Capitosauroidea can be divided into two major clades: one includingParotosuchus,Eryosuchus, CalmasuchusandCherninia, and another includingMastodonsaurus,Yuanansuchus,Stanocephalosaurus,Procyclotosaurus,Paracyclotosaurus,Antarctosuchus,Eocyclotosaurus,Quasicyclotosaurus,TatrasuchusandCyclotosaurus.</jats:p

Jun Liu

Crossref

<i>Yuanansuchus maopingchangensis</i>sp. nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China

Appendix S1: Character list

Appendix S1: Character list

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