New Cretaceous neosuchians (Crocodylomorpha) from Thailand bridge the evolutionary history of atoposaurids and paralligatorids Author Pochat-Cottilloux, Yohan Universite Claude Bernard Lyon 1, LGL-TPE, UMR 5276, CNRS, ENS Lyon, Villeurbanne, France yohan.pochat@orange.fr Author Lauprasert, Komsorn Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham, Thailand & Vertebrate Palaeontology and Evolution Research Unit, Excellence Center in Basin Studies and Applied Paleontology, Mahasarakham University, Khamriang, Maha Sarakham, Thailand Author Chanthasit, Phornphen Sirindhorn Museum, Department of Mineral Resources, Kalasin, Thailand Author Manitkoon, Sita Vertebrate Palaeontology and Evolution Research Unit, Excellence Center in Basin Studies and Applied Paleontology, Mahasarakham University, Khamriang, Maha Sarakham, Thailand & Palaeontological Research and Education Centre, Mahasarakham University, Maha Sarakham, Thailand Author Adrien, Jérôme Laboratoire Matériaux, Ingénierie et Science, Institut National des Sciences Appliquées de Lyon, Villeurbanne, France Author Lachambre, Joël Laboratoire Matériaux, Ingénierie et Science, Institut National des Sciences Appliquées de Lyon, Villeurbanne, France Author Amiot, Romain Universite Claude Bernard Lyon 1, LGL-TPE, UMR 5276, CNRS, ENS Lyon, Villeurbanne, France Author Martin, Jeremy E. Universite Claude Bernard Lyon 1, LGL-TPE, UMR 5276, CNRS, ENS Lyon, Villeurbanne, France text Zoological Journal of the Linnean Society 2024 2024-01-09 202 1 27 journal article 306265 10.1093/zoolinnean/zlad195 3f2ed02b-39d5-4f58-b764-68f8a5f7e20e 0024-4082 14335145 30554A2-79AF-4C42-B85A-377B8DB832AE The status of ‘ Goniopholis ’ phuwiangensis Buffetaut & Ingavat, 1983 ‘ Goniopholis ’ phuwiangensis Buffetaut & Ingavat, 1983 consists of an incomplete dentary ( Fig. 17 ) and is considered by some as belonging to the genus Sunosuchus Young, 1948 or could be conspecific with Siamosuchus ( Lauprasert 2006 , Lauprasert et al. 2007 , de Andrade et al. 2011 , Puértolas-Pascual et al. 2015 ). This taxon is diagnosed on a fragment of dentary, by the following characters: dentary symphysis reaching the level of the sixth alveoli (i.e. five alveoli completely included); no marked angulation of the lower tooth row in its anterior part; no strong outward projection of the lateral rims of the third and fourth dentary alveoli; and an alveolar edge strongly undulated in lateral view ( Fig. 17 ). Although the specimen diagnosing ‘ Goniopholis ’ phuwiangensis is larger than the new specimens from Phu Sung, all those characters are also shared by SM-2021-1-97/101 (Supplementary Model S2). However, we argue that those characters are also identified in other neosuchians: for example, in Goniopholis baryglyphaeus Schwarz, 2003 , the dentary referred to Goniopholididae (AR-1-3423) by Buscalioni et al. (2013) , or Leidyosuchus sp. ( Farke et al. 2014 ). As such, they are not truly diagnostic, and we thus consider ‘ Goniopholis ’ phuwiangensis as a nomen dubium . The holotype of ‘ Goniopholis ’ phuwiangensis could instead be referred to Varanosuchus sakonnakhonensis , but given its incompleteness, we would rather wait for further material to assess its belonging.