Osteological atlas of new lizards from the Phosphorites du Quercy (France), based on historical, forgotten, fossil material Author Georgalis, Georgios L. Palaeontological Institute and Museum, University of Zurich, Karl Schmid-Strasse 4, 8006 Zurich (Switzerland) and Department of Ecology, Laboratory of Evolutionary Biology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, 84215 Bratislava (Slovakia) and Department of Earth Sciences, University of Torino, Via Valperga Caluso 35, 10125 Turin (Italy) georgios.georgalis@pim.uzh.ch Author Čerňanský, Andrej Department of Ecology, Laboratory of Evolutionary Biology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, 84215 Bratislava (Slovakia) Author Klembara, Jozef Department of Ecology, Laboratory of Evolutionary Biology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, 84215 Bratislava (Slovakia) text Geodiversitas 2021 2021-04-22 43 9 219 293 journal article 7175 10.5252/geodiversitas2021v43a9 04426a8e-c179-4af0-8e23-d72908e8b4cc 1638-9395 4720776 urn:lsid:zoobank.org:pub:11D0D852-39D7-449C-9EB3-C3D804114556 Saniwa sp. ( Figs 59-61 ) REFERRED SPECIMENS. — Three presacral vertebrae (NHMW 2019/0065/0001-NHMW 2019/0065/0003). DESCRIPTION Presacral vertebrae ( Figs 59-61 ) The three vertebrae are large ( Figs 59-61 ), with centrum lengths ranging from about 8.8 to 9.6 mm (seeAppendix 1). The centrum is almost triangular in ventral view and widens anteriorly (though not to that extent as in melanosaurine vertebrae described above). The subcentral ridges are straight in ventral view. The prezygapophyses are either much dorsally tilted (NHMW 2019/0065/0003) or only slightly so (in the other two specimens ). The prezygapophyseal articular facets are massive and broad in dorsal view. The postzygapophyseal articular facets are also massive. The neural spine develops in height mostly in the posterior half of the neural arch. The neural arch is vaulted in posterior view. There are slight signs of “pseudozygosphene” and “pseudozygantrum” (sensu Hoffstetter 1969 ). The cotyle and the condyle are strongly depressed. The centrum appear more convex in lateral view is NHMW 2019/0065/0001 and NHMW 2019/0065/0002, while it is more straight in NHMW 2019/0065/0003. In all specimens though, the dorsal level of the cotyle can be clearly visible in ventral view of the specimen. Precondylar constriction can be observed (even slightly though) in NHMW 2019/0065/0001, as the respective portion of the centrum is eroded in the other two specimens . Anocotylar foramina are present and are most prominent in the largest vertebra NHMW 2019/0065/0001 ( Fig. 59A ). REMARKS These three vertebrae can be referred to Saniwa on the basis of their triangular centrum that widens anteriorly and the slight presence of “pseudozygosphene” and “pseudozygantrum” ( Gilmore 1922 ; Rage & Augé 2003 ; Augé 2005 ). See Discussion below for further information on European material of Saniwa .