Eothoracosaurus is an extinct monospecific genus of eusuchian crocodylomorphs found in Eastern United States which existed during the Late Cretaceous period. Eothoracosaurus is considered to belong to an informally named clade called the "thoracosaurs", named after the closely related Thoracosaurus. Thoracosaurs in general were traditionally thought to be related to the modern false gharial, largely because the nasal bones contact the premaxillae, but phylogenetic work starting in the 1990s instead supported affinities within gavialoid exclusive of such forms. Even more recent phylogenetic studies suggest that thoracosaurs might instead be non-crocodilian eusuchians.[2]
^Rio, Jonathan P.; Mannion, Philip D. (6 September 2021). "Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem". PeerJ. 9: e12094. doi:10.7717/peerj.12094. PMC 8428266. PMID 34567843.
^Cite error: The named reference LeeYates2018 was invoked but never defined (see the help page).
specimens from Mississippi) has been referred to Eothoracosaurus as well. The holotype specimen of Eothoracosaurus (MSU 3293, a skull and associated postcrania)...
†Argochampsa? Genus †Dadagavialis Genus †Eogavialis? Genus †Eosuchus? Genus †Eothoracosaurus? Genus Gavialis Gavialis gangeticus, gharial †Gavialis bengawanicus...
relative to the dorsal skull length among all dyrosaurids. †Eothoracosaurus †Eothoracosaurus mississippiensis Late Cretaceous to early Paleocene Ripley...
superfamily, including earlier putative members such as Thoracosaurus and Eothoracosaurus. Fossils have been found from France as well as eastern North America...
non-crocodylian eusuchians that also included the genera Argochampsa, Eosuchus, Eothoracosaurus and Thoracosaurus. E. andrewsi was found in fluvial deposits within...
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