correlated with the Les Pradineaux Formation of the Esterel basin in Provence. This formation overlies, above an unconformity, a rhyolitic formation (the A7 Rhyolite) dated at 272.5 ± 0.3 Ma. This absolute age, formerly considered as late Kungurian, corresponds now to the early Roadian. On the other hand, the Les Pradineaux Formation contains in its lower part the A11 Rhyolite which itself is undated but which is crossed by a fluorite-barite vein with adularia dated at 264 ± 2 Ma corresponding to the Capitanian, indicating a older age for the A11 Rhyolite and the Les Pradineaux Formation. Marc Durand suggests a Wordian age, the erosional gap at the top of the A7 Rhyolite corresponding according to him to a large part of the Roadian. The Les Pradineaux Formation has, however, yielded plants and pollens suggesting a Roadian age, an ostracod fauna indicative of a late Roadian age, and vertebrate tracks including the ichnogenus Brontopus characteristic of the Guadalupian. From these stratigraphic correlations, the Sardinian Cala del Vino Formation could thus be dated to the Roadian - Wordian. According to Werneburg and colleagues the age of the Cala del Vino formation could also extend from the Roadian to the early Capitanian like the La Lieude Formation in Occitania, due to sedimentological similarities and the co-occurrence in the two formations of the caseids synapsids and the ichnogenus Merifontichnus. Phylogeny In 2017 Marco Romano and colleagues published the first phylogenetic analysis including the genus Alierasaurus. It is recovered as the sister taxon of the genus Cotylorhynchus. Below the cladogram published by Romano and colleagues in 2017. In describing the genus Martensius in 2020, Berman and colleagues published two cladograms. In the first, the position of caseids more derived than Martensius is poorly resolved. Alierasaurus forms a polytomy with Angelosaurus romeri and the three species of Cotylorhynchus. In the second cladogram, Alierasaurus is positioned above the genus Angelosaurus and forms a polytomy with Cotylorhynchus romeri and a clade containing the species C. bransoni and C. hancocki. Below the two cladograms published by Berman and colleagues in 2020. In 2022, Werneburg and colleagues described the genus Lalieudorhynchus and published a phylogenetic analysis which concluded that Angelosaurus and Cotylorhynchus would be paraphyletic, both genera being possibly represented only by their type species. In this analysis, Cotylorhynchus romeri is positioned just above the genus Angelosaurus, and forms a polytomy with a clade containing Ruthenosaurus and Caseopsis and