The history, systematics, and nomenclature of Thalattosuchia (Archosauria: Crocodylomorpha) Author Young, Mark T. School of GeoSciences, Grant Institute, The King’s Buildings, University of Edinburgh, James Hutton Road, Edinburgh, EH 9 3 FE, United Kingdom & LWL-Museum für Naturkunde, Sentruper Strasse 285, 48161 Münster, Germany marktyoung1984@gmail.com Author Wilberg, Eric W. Department of Anatomical Sciences, Stony Brook University, Stony Brook, NY 11794, USA Author Johnson, Michela M. Staatliches Museum für Naturkunde, Rosenstein 1, 70191 Stuttgart, Germany Author Herrera, Yanina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Paleontología Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, B 1900 La Plata, Buenos Aires, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) & Departamento de Diversidade e Ecologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, Prédio 12, Porto Alegre, 90619 - 900, Brazil & Setor de Paleontologia, Museu de Ciências e Tecnologia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, Prédio 40, Porto Alegre, 90619 - 900, Brazil Author Brandalise, Marco de Andrade Departamento de Diversidade e Ecologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, Prédio 12, Porto Alegre, 90619 - 900, Brazil & Setor de Paleontologia, Museu de Ciências e Tecnologia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, Prédio 40, Porto Alegre, 90619 - 900, Brazil Author Brignon, Arnaud 5, Villa Jeanne-d’Arc, 92340 Bourg-la-Reine, France Author Sachs, Sven Naturkunde-Museum Bielefeld, Abteilung Geowissenschaften, Adenauerplatz 2, 33602 Bielefeld, Germany Author Abel, Pascal Eberhard-Karls-University Tübingen, Fachbereich Geowissenschaften, Sigwartstrasse 10, 72074 Tübingen, Germany Author Foffa, Davide Department of Geosciences, Virginia Tech, 4044 Derring Hall 926 West Campus Drive, Blacksburg 24061, Virginia, USA & School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B 15 2 TT, United Kingdom Author Fernández, Marta S. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Paleontología Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, B 1900 La Plata, Buenos Aires, Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Author Vignaud, Patrick Laboratoire de Paléontologie, Evolution, Paléoécosystèmes et Paléoprimatologie, CNRS UMR 7262, Department of Geosciences, University of Poitiers, 86073 Poitiers Cedex 9, France Author Cowgill, Thomas School of GeoSciences, Grant Institute, The King’s Buildings, University of Edinburgh, James Hutton Road, Edinburgh, EH 9 3 FE, United Kingdom Author Brusatte, Stephen L. School of GeoSciences, Grant Institute, The King’s Buildings, University of Edinburgh, James Hutton Road, Edinburgh, EH 9 3 FE, United Kingdom text Zoological Journal of the Linnean Society 2024 2024-01-09 200 2 547 617 http://dx.doi.org/10.1093/zoolinnean/zlad165 journal article 10.1093/zoolinnean/zlad165 0024-4082 11241243 1EEF0D52-180B-4D3D-AB95-91AF3091E272 Dakosaurina Subtribe Novum (Zoological Code) Dakosaurina new clade name (PhyloCode) ZooBank registration number http://zoobank.org/ urn:lsid:zoobank.org:act: 66201750- 04AE-43A7-B383-FE7232F08166 . RegNum registration number 1024. Type genus: Dakosaurus Quenstedt, 1856 . Etymology ‘Pertaining to Dakosaurus’. The stem Dakosaur- is based on the genus Plesiosuchus . -ina, is a Latin neuter plural suffix for ‘pertaining to’.Under Article 29.2 of the Zoological Code, the suffix -ina denotes a subtribe rank within the family-group.Geological range Middle Jurassic (middle Callovian) to Early Cretaceous (early Berriasian) ( Herrera et al . 2015 , Foffa et al . 2018 , Fernández et al . 2019 ). PhyloCode phylogenetic definition The largest clade within Metriorhynchidae containing Dakosaurus maximus ( Plieninger 1846 ) , but not Metriorhynchus brevirostris (Holl, 1828) , Geosaurus giganteus ( von Sömmerring 1816 ) , Plesiosuchus manselii ( Hulke 1870 ) , Torvoneustes carpenteri ( Wilkinson et al. 2008 ) . Reference phylogeny Fig. 3 . Zoological Code diagnosis and PhyloCode diagnostic apomorphies Metriorhynchid crocodylomorphs with the following unique combination of characters (3): amblygnathic rostrum (9.1); aligned set of large foramina ventral to the jugal anterior process (within Thalattosuchia , shared with Cricosaurus rauhuti and a specimen referred to Rhacheosaurus gracilis ) (156.1); and macrowear along the mesiodistal (carinae) margins of the tooth crowns (646.1). Composition Dakosaurus and undescribed Middle Jurassic specimens. Comments Authorship: The use of ‘Dakosaurina’ in Foffa et al . (2018) does not conform to a valid establishment under either the Zoological Code or the PhyloCode, and has only been used as an informal term. Prior phylogenetic definition: This clade has never been phylogenetically defined.