Machimosaurinae Jouve 2016
Creators: name: Young, Mark T.
name: Wilberg, Eric W.
name: Johnson, Michela M.
name: Herrera, Yanina
name: Brandalise, Marco de Andrade
name: Brignon, Arnaud
name: Sachs, Sven
name: Abel, Pascal
name: Foffa, Davide
name: Fernández, Marta S.
name: Vignaud, Patrick
name: Cowgill, Thomas
name: Brusatte, Stephen L.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Crocodylia
Machimosauridae

description: Machimosaurinae Jouve et al., 2016 (Zoological Code)
Machimosaurinae Johnson et al., 2020a: 118 (PhyloCode)
RegNum registration number 759.
Type genus: Machimosaurus von Meyer 1837 (emend. von Meyer 1838).
Etymology
‘Pertaining to Machimosaurus ’. The stem Machimosaur - is based on the genus Machimosaurus. - inae, is a Latin feminine plural suffix for ‘pertaining to’. Under Article 29.2 of the Zoological Code, the suffix - inae denotes a subfamily rank within the family-group.
Geological range
Middle Jurassic (Bathonian) to Early Cretaceous (Hauterivian or possibly late Barremian?) (Fanti et al. 2016, Jouve et al. 2016, Cortés et al. 2019, Johnson et al. 2020 a, Young and Sachs 2021).
PhyloCode phylogenetic definition
Thelargestcladewithin Teleosauroidea containing Machimosaurus hugii (von Meyer 1837) but not Deslongchampsina larteti (Eudes-Deslongchamps 1866), Macrospondylus bollensis (Jäger 1828), and Charitomenosuchus leedsi (Andrews 1909). Definition from Johnson et al. (2022b).
Reference phylogeny
Fig. 3.
Zoological Code diagnosis and PhyloCode diagnostic apomorphies
Teleosauroid crocodylomorphs with the following unique combination of characters (7): tooth row and occipital condyle aligned in the same plane (shared with the unnamed Chinese teleosaurid and Metriorhynchoidea) (3.1); ornamentation restricted to the centre of the frontal (shared with the aeolodontin teleosaurids Aeolodon, Bathysuchus and Sericodon) (22.1); premaxilla–maxilla suture is ‘U’-shaped in dorsal view (shared with the teleosaurid Mystriosaurus) (132.1); ulna olecranon process greatly expanded (shared with aeolodontin teleosaurids) (768.1); ilium supraacetabular crest shallow and poorly developed (shared with Metriorhynchoidea) (793.1); ilium postacetabular process expanded into a ‘fan’-shape (795.1); the forelimbs (humerus + ulna) are approximately half the length of the hindlimbs (femur + tibia) at maturity (shared with the hylaeochampsids Pachycheilosuchus and Pietraroiasuchus) (808.3).
Composition
Andrianavoay, Neosteneosaurus, Proexochokefalos, and Machimosaurini (composed of Lemmysuchus, Machimosaurus, and Yvridiosuchus).
Comments
Authorship: While the nomen Machimosaurinae was first used by Johnson et al. (2020a: 118), under the Zoological Code Jouve et al. 2016 is the nominal authority. The nominal author of a family-group is the author who first erected a family-group taxon that is valid (in fulfilment of Article 11), and in accordance with the Zoological Code Principle of Coordination applied to family-group names (Article 36.1). However, under the PhyloCode Johnson et al. (2020a) is the nominal authority.
description: Published as part of 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), pp. 547-617 in Zoological Journal of the Linnean Society 200 (2) on pages 595-596, DOI: 10.1093/zoolinnean/zlad165, http://zenodo.org/record/11241243