A new fossil crocodilian from Colombia

The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela

“…More complete cranial and mandibular material from this formation was later described and figured Aureliano et al, 2015). Besides P. brasiliensis, two more species were described, P. neivensis from the middle Miocene, La Venta fauna, Colombia (Mook, 1941;Langston, 1965) It is difficult in many cases, however, to identify isolated specimens down to the species level.…”

Morphology of the Late Cretaceous Crocodylomorph Shamosuchus djadochtaensis and a Discussion of Neosuchian Phylogeny as Related to the Origin of Eusuchia

“…13). This morphology is similarly present in AMNH FR 6412 for which Mook (1924) described the lacrimal ridges as diagnostic of Shamosuchus djadochtaensis. Other Shamosuchus species, however, also show prominent lacrimal (and prefrontal) ridges (Efimov, 1983(Efimov, , 1988Storrs and Efimov, 2000).…”

“…8, 13). The frontal ridge is clearly present in the type specimen (as described by Mook, 1924) and in IGM 100/1195. This resembles the condition of Rugosuchus nonganensis , Isisfordia duncani (Salisbury et al, 2006), and some nonneosuchian crocodyliforms (e.g., Sichuanosuchus shuhanensis IVPP V 10594, Simosuchus clarki UA 8679, Notosuchus terrestris MACN-RN 1041).…”

“…Crocodylomorpha Hay, 1930(sensu Walker, 1970) Crocodyliformes Hay, 1930(sensu Clark, 1986) Neosuchia Clark, 1986 Shamosuchus djadochtaensis Mook, 1924 HOLOTYPE: AMNH FR 6412. Incomplete skull and lower jaws preserved in articulation (figs.…”

The First Record of <i>Gavialosuchus americanus</i> Sellards (1915) † (Eusuchia: Crocodylidae, Tomistominae) for the Late Tertiary of Costa Rica and Central America

“…However, no fossil evidence of this type older than Late oligocene has been found to this day (Brochu, 2006). Central America, unlike South and North America, has a poorly developed fossil record of reptiles (see Mook, 1959). The fossil remains thus far found have been limited to a few osteoderms, vertebrae and isolate teeth without taxonomic value.…”