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La Colonia, Argentina

FormationLa Colonia
Member(s)Middle
Age:83.5 - 66.0 Ma
Late/Upper Cretaceous
IntervalLate Campanian - Early Maastrichtian
Lithologysiliciclastic, claystone/siltstone, siltstone, mudstone
Number of Collections21
Number of Occurrences34

Recorded Sample Locations

LocationRegionStratigraphic Name
Estancia Pocho SastreMártires Department, Chubut Province, ArgentinaLa Colonia
La ColoniaMártires Department, Chubut Province, ArgentinaLa Colonia
Paleoazolla type localityTelsen Department, Chubut Province, ArgentinaLa Colonia
Meseta de Somuncura Mártires Department, Chubut Province, ArgentinaLa Colonia
Cerro Bosta Mártires Department, Chubut Province, ArgentinaLa Colonia - Middle
El UruguayoMártires Department, Chubut Province, ArgentinaLa Colonia
stake 002 Estancia BaibiánMártires Department, Chubut Province, ArgentinaLa Colonia
“Ulna” on the left margin of the Mirasol Chico CanyonConfluencia Department, Neuquén Province, ArgentinaLa Colonia
Buitre Chico HillMártires Department, Chubut Province, ArgentinaLa Colonia
North Cerro BayoMártires Department, Chubut Province, ArgentinaLa Colonia

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
La Colonia - Middle83.5 - 66.0 Ma
Late/Upper Cretaceous
mudstone11

Recorded Fossils

Accepted NameHierarchyAge
Enantiornithes
subclass
3.3Animalia : Chordata : Aves : Enantiornithes83.6 - 66 Ma
Late/Upper Cretaceous
Coloniatherium cilinskii
species
7Animalia : Chordata : Mammalia : Mesungulatidae : Coloniatherium : Coloniatherium cilinskii83.6 - 66 Ma
Late/Upper Cretaceous
Reigitherium bunodonta
species
7Animalia : Chordata : Mammalia : Reigitheriidae : Reigitherium : Reigitherium bunodonta83.6 - 66 Ma
Late/Upper Cretaceous
Argentodites coloniensis
species
7Animalia : Chordata : Mammalia : Argentodites : Argentodites coloniensis83.6 - 66 Ma
Late/Upper Cretaceous
Ankylosauria
unranked clade
99Animalia : Chordata : Ornithischia : Ankylosauria83.5 - 66 Ma
Late/Upper Cretaceous
Hadrosauroidea
unranked clade
99Animalia : Chordata : Ornithischia : Hadrosauroidea83.5 - 66 Ma
Late/Upper Cretaceous
Elasmosauridae
family
5Animalia : Chordata : Reptilia : Sauropterygia : Brimosaurus : Elasmosauridae83.5 - 66 Ma
Late/Upper Cretaceous
Sulcusuchus erraini
species
7Animalia : Chordata : Reptilia : Polycotylidae : Sulcusuchus : Sulcusuchus erraini83.5 - 66 Ma
Late/Upper Cretaceous
Boidae
family
5Animalia : Chordata : Reptilia : Squamata : Boidae83.5 - 66 Ma
Late/Upper Cretaceous
Alamitophis argentinus
species
7Animalia : Chordata : Reptilia : Squamata : Madtsoiidae : Alamitophis : Alamitophis argentinus83.5 - 66 Ma
Late/Upper Cretaceous
Madtsoiidae
family
5Animalia : Chordata : Reptilia : Squamata : Madtsoiidae83.5 - 66 Ma
Late/Upper Cretaceous
Serpentes
unranked clade
99Animalia : Chordata : Reptilia : Squamata : Serpentes83.5 - 66 Ma
Late/Upper Cretaceous
Patagoniaemys gasparinae
species
7Animalia : Chordata : Reptilia : Testudines : Patagoniaemys : Patagoniaemys gasparinae83.5 - 66 Ma
Late/Upper Cretaceous
Chelidae
family
5Animalia : Chordata : Reptilia : Testudines : Chelidae83.5 - 66 Ma
Late/Upper Cretaceous
Yaminuechelys sulcipeculiaris
species
7Animalia : Chordata : Reptilia : Testudines : Chelidae : Yaminuechelys : Yaminuechelys sulcipeculiaris83.5 - 66 Ma
Late/Upper Cretaceous
Carnotaurus sastrei
species
7Animalia : Chordata : Saurischia : Abelisauridae : Carnotaurus : Carnotaurus sastrei83.5 - 66 Ma
Late/Upper Cretaceous
Theropoda
unranked clade
99Animalia : Chordata : Saurischia : Theropoda83.5 - 66 Ma
Late/Upper Cretaceous
Titanosauria
unranked clade
99Animalia : Chordata : Saurischia : Titanosauria83.5 - 66 Ma
Late/Upper Cretaceous
Regnellidium thomastaylorii
species
7Plantae : Pteridophyta : Pteridopsida : Salviniales : Marsileaceae : Regnellidium : Regnellidium thomastaylorii83.5 - 66 Ma
Late/Upper Cretaceous

References

Bonaparte J. F. (1985) A horned Cretaceous carnosaur from Patagonia, National Geographic Research 1 1, 149-151
Albino A. M. (2000) New record of snakes from the Cretaceous of Patagonia (Argentina), Geodiversitas 22 2, 247-253
Pascual R., Goin F. J., et al (2000) A highly derived docodont from the Patagoinan Late Cretaceous: evolutionary implications for Gondwanan mammals, Geodiversitas 23 3, 395-414
Gasparini Z., de la Fuente M. (2000) Tortugas y plesiosaurios de la Formacion la Colonia (Cretacico Superior) de Patagonia, Argentina, Revista Espanola de Paleontologia 15 1, 23-35
Gasparini Z., Casadio S., et al (2001) Marine reptiles from the Late Cretaceous of northern Patagonia, Journal of South American Earth Sciences 14, 51-60
Kielan-Jaworowska Z., Ortiz-Jaureguizar E., et al (2007) First cimolodontan multituberculate mammal from South America, Acta Palaeontologica Polonica 52 2, 257-262
Rougier G. W., Forasiepi A. M., et al (2009) New mammalian remains from the Late Cretaceous La Colonia Formation, Patagonia, Argentina, Acta Palaeontologica Polonica 54 2, 195-212 doi:10.4202/app.2006.0026
Lawver D. R., Debee A. J. M., et al (2011) A new enantiornithine bird from the Upper Cretaceous La Colonia Formation of Patagonia, Argentina, Annals of Carnegie Museum 80 1, 35-42
Sterli J., de la Fuente M. S. (2011) A new turtle from the La Colonia Formation (Campanian-Maastrichtian), Patagonia, Argentina, with remarks on the evolution of the vertebral column in turtles, Palaeontology 54 1, 63-78 doi:10.1111/j.1475-4983.2010.01002.x
O’Gorman J. P., Salgado L., et al (2013) First record of gastroliths associated with elasmosaur remains from La Colonia Formation (Campanian–Maastrichtian), Chubut, Patagonia Argentina, with comments on the probable depositional palaeoenvironment of the source of the gastroliths, Cretaceous Research 40, 212-217
Cúneo N. R., Hermsen E. J., et al (2013) Regnellidium (Salviniales, Marsileaceae) macrofossils and associated spores from the Late Cretaceous of South America, PloSOne 174 3, 340-349
Gasparini Z., Sterli J., et al (2015) Late Cretaceous reptilian biota of the La Colonia Formation, central Patagonia, Argentina: occurrences, preservation and paleoenvironments, Cretaceous Research 54, 154-168
Harper T., Parras A., et al (2018) Reigitherium (Meridiolestida, Mesungulatoidea) an Enigmatic Late Cretaceous Mammal from Patagonia, Argentina: Morphology, Affinities, and Dental Evolution, Journal of Mammalian Evolution doi:10.1007/s10914-018-9437-x
Oriozabala C., Sterli J., et al (2020) New species of the long-necked chelid Yaminuechelys from the Upper Cretaceous (Campanian–Maastrichtian) of Chubut, Argentina, Cretaceous Research 106, 1-11 doi:10.1016/j.cretres.2019.104197
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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