Plesiosuchina Young et al., 2014b

Young, Mark T., Wilberg, Eric W., Johnson, Michela M., Herrera, Yanina, Brandalise, Marco de Andrade, Brignon, Arnaud, Sachs, Sven, Abel, Pascal, Foffa, Davide, Fernández, Marta S., Vignaud, Patrick, Cowgill, Thomas & Brusatte, Stephen L., 2024, The history, systematics, and nomenclature of Thalattosuchia (Archosauria: Crocodylomorpha), Zoological Journal of the Linnean Society 200 (2), pp. 547-617 : 607-608

Plesiosuchina Young et al., 2014b (Zoological Code)

Plesiosuchina Young et al., 2014b: 166 , converted clade name (PhyloCode)

RegNum registration number 1023.

Type genus: Plesiosuchus Owen, 1884 .

Etymology

‘Pertaining to Plesiosuchus ’. The stem Plesiosuch - 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 (earliest Aptian) ( Young et al. 2013, Chiarenza et al. 2015, Foffa et al. 2018, Sachs et al. 2020).

PhyloCode phylogenetic definition

The largest clade within Metriorhynchidae containing Plesiosuchus manselii ( Hulke 1870) , but not Metriorhynchus brevirostris ( Holl 1829) , Geosaurus giganteus ( von Sömmerring 1816) , Torvoneustes carpenteri ( Wilkinson et al. 2008) , and Dakosaurus maximus ( Plieninger 1846) .

Reference phylogeny

Fig. 3 .

Zoological Code diagnosis and PhyloCode diagnostic apomorphies

Metriorhynchid crocodylomorphs with the following unique combination of characters (3): quadrate intercondyle groove incipient at best (473.1); sharp dorsal inclination of the mandibular rami, with a distinctive ‘kink’ along the ventral margin (489.1); ‘chisel’-shaped or rectangular denticles (655.0).

Composition

Suchodus and Plesiosuchus , and the indeterminate specimens from the Early Cretaceous referred to this clade (e.g. Young et al. 2013, Chiarenza et al. 2015).

Figures

Figure 3. The equal weights, no constraints strict consensus topology (C0). Length = 4164, CI = 0.303, RI = 0.831, RC = 0.251, HI = 0.697, number of most parsimonious cladograms hit the hold limit.Phylogeny pruned to highlight Thalattosuchia (see Supporting Information, Appendix S2, Fig. S1 for the entire topology). A, Crocodylomorpha; B, Crocodyliformes; C, Thalattosuchia; D, Neothalattosuchia; E, Teleosauridae; F, Teleosaurinae; G, Aeolodontini; H, Machimosauridae; I, Machimosaurinae; J, Machimosaurini; K, Euthalattosuchia; L, Metriorhynchidae; M, Metriorhynchinae; N, Rhacheosaurini; O, Geosaurinae; P, Geosaurini. Green lines highlight non-neothalattosuchian thalattosuchians, orange lines highlight teleosauroid thalattosuchians, and blue lines highlight metriorhynchoid thalattosuchians.Images from PhyloPics.org, with the teleosauroid by Scott Hartman, and the metriorhynchid by Dmitry Bogdanov (vectorized by T. Michael Keesey), the only change made was to their colouration, and their license is: https://creativecommons.org/licenses/by/3.0/.