Dakosaurina, Young & Wilberg & Johnson & Herrera & Brandalise & Andrade & Brignon & Sachs & Abel & Foffa & Fernández & Vignaud & Cowgill & Brusatte, 2024

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 : 608

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.

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/.