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Tio Gregorio, Falcón, Venezuela

Lat/Long (Decimal)	11.2419,-70.3111
Co-ordinates Derivation	stated in text
Given Location	Falcon, Venezuela
Mindat.org Region (for given coordinates)	Falcón, Venezuela

Collections

Collection	Reference	Stratigraphic Name	Comments	Lithology	Age
Tio Gregorio	Lundberg J. G., Aguilera O. A. (2003)	Urumaco - Upper	The geological units from which the specimens were obtained are the middle and upper members of the Urumaco Formation of Venezuela. These units have been recently summarized in the Léxico estratigráfico de Venezuela (1997). Horovitz, et al. 2006: with strata located at the top of the Urumaco sequence and close stratigraphically to the overlying Codore Formation	claystone	11.608 - 5.333 Ma Miocene

Recorded Fossils

Accepted Name	Hierarchy	Age
Phractocephalus nassi species	Animalia : Chordata : Actinopteri : Siluriformes : Pimelodidae : Phractocephalus : *Phractocephalus nassi*	11.608 - 5.333 Ma Miocene
Phoberomys pattersoni species	Animalia : Chordata : Mammalia : Rodentia : Dinomyidae : Phoberomys : *Phoberomys pattersoni*	11.608 - 5.333 Ma Miocene
Caimaninae unranked clade	Animalia : Chordata : Reptilia : Crocodylia : Alligatoridae : Caimaninae	11.608 - 5.333 Ma Miocene
Mourasuchus sp. genus	Animalia : Chordata : Reptilia : Crocodylia : Crocodylidae : *Mourasuchus*	11.608 - 5.333 Ma Miocene
Purussaurus mirandai species	Animalia : Chordata : Reptilia : Crocodylia : Alligatoridae : Purussaurus : *Purussaurus mirandai*	11.608 - 5.333 Ma Miocene
Gryposuchus croizati species	Animalia : Chordata : Reptilia : Gryposuchus : *Gryposuchus croizati*	11.608 - 5.333 Ma Miocene
Ikanogavialis gameroi species	Animalia : Chordata : Reptilia : Crocodylia : Gavialidae : Ikanogavialis : *Ikanogavialis gameroi*	11.608 - 5.333 Ma Miocene
Bairdemys sanchezi species	Animalia : Chordata : Reptilia : Testudines : Podocnemididae : Bairdemys : *Bairdemys sanchezi*	11.608 - 5.333 Ma Miocene

References

Sill W. D. (1970) Nota preliminar sobre un nuevo gavial del Plioceno de Venezuela y una discusion de los gaviales Sudamericanos, Ameghiniana 7 2, 151-159

Lundberg J. G., Aguilera O. A. (2003) The late Miocene Phractocephalus catfish (Siluriformes: Pimelodidae) from Urumaco, Venezuela: additional specimens and reinterpretation as a distinct species, Neotropical Ichthyology 1 2, 97-109

Aguilera O. A., Riff D., et al (2006) A new giant Purussaurus (Crocodyliformes, Alligatoridae) from the Upper Miocene Urumaco Formation, Venezuela, Journal of Systematic Palaeontology 4 3, 221-232

Horovitz I., Sánchez-Villagra M. R., et al (2006) The fossil record of Phoberomys pattersoni Mones 1980 (Mammalia, Rodentia) from Urumaco (Late Miocene, Venezuela), with an analysis of its phylogenetic relationships, Journal of Systematic Palaeontology 4 3, 293-306 doi:0.1017/S1477201906001908

Gaffney E. S., Scheyer T. M., et al (2008) Two new species of the side necked turtle genus, Bairdemys (Pleurodira, Podocnemididae), from the Miocene of Venezuela, Palaeontologische Zeitschrift 82 2, 209-229

Riff D., Aguilera O. A. (2008) The world's largest gharials Gryposuchus: description of G. croizati n. sp. (Crocodylia, Gavialidae) from the Upper Miocene Urumaco Formation, Venezuela, Paläontologische Zeitschrift 82 2, 178-195

Scheyer T. M., Aguilera O. A., et al (2013) Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics, Nature Communications 4 1907, 1-9 doi:10.1038/ncomms2940

Scheyer T. M., Delfino M. (2016) The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela, Palaeontologia Electronica 19 3, 48A:1-57

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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