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Allen, Argentina

FormationAllen
Member(s)Middle
Age:83.5 - 66.0 Ma
Late/Upper Cretaceous
IntervalLate Cretaceous
Lithologysandstone/"shale"
Number of Collections6
Number of Occurrences10

Recorded Sample Locations

LocationRegionStratigraphic Name
Yaminue CreekNueve de Julio Department, Río Negro Province, ArgentinaAllen - Middle
Cerro de Guerra El Cuy Department, Río Negro Province, ArgentinaAllen - Middle
Arriagada I El Cuy Department, Río Negro Province, ArgentinaAllen - Middle
Arriagada II El Cuy Department, Río Negro Province, ArgentinaAllen - Middle
Salitral de Santa Rosa-Salinas de TrapalcoValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Santos IValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Santos IIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Santos IIIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Santos IVValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Mansilla IValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Mansilla IIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Garcia IValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Garcia IIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Cerro Bonaparte Valcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe IValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe IIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe IIIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe IV Valcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe IV Valcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe VValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Berthe VIValcheta Department, Río Negro Province, ArgentinaAllen - Middle
Barranca La LagunaNueve de Julio Department, Río Negro Province, ArgentinaAllen - Middle
Cerro Laguna TrapalcoAvellaneda Department, Río Negro Province, ArgentinaAllen - Middle
Bajo de Santa RosaAllen
Cerro de GuerraEl Cuy Department, Río Negro Province, ArgentinaAllen
Contralmirante CorderoGeneral Roca Department, Río Negro Province, ArgentinaAllen
Bajo de Santa RosaAvellaneda Department, Río Negro Province, ArgentinaAllen
Loma PuntudaMagallanes Department, Santa Cruz Province, ArgentinaAllen
Quarry of the “Bentonitas Patagónicas” companyGeneral Roca Department, Río Negro Province, ArgentinaAllen - Middle

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Allen - Middle83.5 - 66.0 Ma
Late/Upper Cretaceous
mudstone/sandstone, sandstone/mudstone57
Malargüe - Allen83.5 - 66.0 Ma
Late/Upper Cretaceous
sandstone, mudstone55

Recorded Fossils

Accepted NameHierarchyAge
Hadrosauridae
family
5Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae83.5 - 66 Ma
Late/Upper Cretaceous
Osteichthyes
unranked clade
99Animalia : Chordata : Osteichthyes83.5 - 66 Ma
Late/Upper Cretaceous
Aerotitan sudamericanus
species
7Animalia : Chordata : Reptilia : Pterosauria : Azhdarchidae : Aerotitan : Aerotitan sudamericanus83.5 - 66 Ma
Late/Upper Cretaceous
Elasmosauridae
family
5Animalia : Chordata : Reptilia : Sauropterygia : Brimosaurus : Elasmosauridae83.5 - 66 Ma
Late/Upper Cretaceous
Kawanectes lafquenianum
species
7Animalia : Chordata : Reptilia : Sauropterygia : Elasmosauridae : Kawanectes : Kawanectes lafquenianum83.5 - 66 Ma
Late/Upper Cretaceous
Plesiosauridae
family
5Animalia : Chordata : Reptilia : Plesiosauridae83.5 - 66 Ma
Late/Upper Cretaceous
Polycotylidae
family
5Animalia : Chordata : Reptilia : Polycotylidae83.5 - 66 Ma
Late/Upper Cretaceous
Meiolaniformes
unranked clade
99Animalia : Chordata : Reptilia : Testudinata : Meiolaniformes83.5 - 66 Ma
Late/Upper Cretaceous
Chelidae
family
5Animalia : Chordata : Reptilia : Testudines : Chelidae83.5 - 66 Ma
Late/Upper Cretaceous
Yaminuechelys gasparinii
species
7Animalia : Chordata : Reptilia : Testudines : Chelidae : Yaminuechelys : Yaminuechelys gasparinii83.5 - 66 Ma
Late/Upper Cretaceous
Austroraptor cabazai
species
7Animalia : Chordata : Reptilia : Dinosauria : Dromaeosauridae : Austroraptor : Austroraptor cabazai83.5 - 66 Ma
Late/Upper Cretaceous
Dromaeosauridae
family
5Animalia : Chordata : Reptilia : Dinosauria : Dromaeosauridae83.5 - 66 Ma
Late/Upper Cretaceous
Faveoloolithidae
family
5Animalia : Chordata : Saurischia : Faveoloolithidae83.5 - 66 Ma
Late/Upper Cretaceous
Megaloolithidae
unranked clade
99Animalia : Chordata : Saurischia : Megaloolithidae83.5 - 66 Ma
Late/Upper Cretaceous
Sauropoda
unranked clade
99Animalia : Chordata : Saurischia : Sauropoda83.5 - 66 Ma
Late/Upper Cretaceous
Theropoda
unranked clade
99Animalia : Chordata : Saurischia : Theropoda83.5 - 66 Ma
Late/Upper Cretaceous
Saltasauridae
family
5Animalia : Chordata : Saurischia : Saltasauridae83.5 - 66 Ma
Late/Upper Cretaceous
Diplodon sp.
genus
6Animalia : Mollusca : Bivalvia : Unionida : Unionidae : Diplodon83.5 - 66 Ma
Late/Upper Cretaceous
Gastropoda
class
3Animalia : Mollusca : Gastropoda83.5 - 66 Ma
Late/Upper Cretaceous
Brunoa santarrosensis
species
7Plantae : Tracheophyta : Cycadopsida : Cycadales : Zamiaceae : Brunoa : Brunoa santarrosensis100.5 - 66 Ma
Late/Upper Cretaceous
Chamberlania pteridospermoidea
species
7Plantae : Cycadophyta : Cycadopsida : Cycadales : Zamiaceae : Chamberlania : Chamberlania pteridospermoidea100.5 - 66 Ma
Late/Upper Cretaceous
Worsdellia bonettiae
species
7Plantae : Tracheophyta : Cycadopsida : Cycadales : Zamiaceae : Worsdellia : Worsdellia bonettiae100.5 - 66 Ma
Late/Upper Cretaceous

References

de Broin F., de la Fuente M. (1993) Les tortues fossiles d'Argentine: synthese [The fossil turtles of Argentina: synthesis], Annales de Paléontologie (Invertebrés-Vertebrés) 79 3, 169-232
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
de la Fuente M., de Lapparent de Broin F., et al (2001) The oldest and first nearly complete skeleton of a chelid, of the Hydromedusa sub-group (Chelidae, Pleurodira), from the Upper Cretaceous of Patagonia, Bulletin de la Société Géologique de France 172 2, 237-244
Artabe A. E., Zamuner A. B., et al (2004) Two New Petrified Cycad Stems, Brunoa gen. nov. and Worsdellia gen. nov., from the Cretaceous of Patagonia (Bajo de Santa Rosa, Rio Negro Province), Argentina, The Botanical Review 70 2, 121-133
Artabe A. E., Zamuner A. B., et al (2005) A new genus of Late Cretaceous cycad stem from Argentina, with reappraisal of known forms, Alcheringa 29 1, 87-100 doi:10.1080/03115510508619561
Salgado L., Coria R. A., et al (2007) Upper Cretaceous dinosaur nesting sites of Rio Negro (Salitral Ojo de Agua and Salinas de Trapalco-Salitral de Santa Rosa), northern Patagonia, Argentina, Cretaceous Research 28, 392-404 doi:10.1016/j.cretres.2006.06.007
Salgado L., Parras A., et al (2007) Un plesiosaurio de cuello corto (Plesiosauroidea, Polycotylidae) del Cretácico Superior del norte de Patagonia, Ameghiniana 44 2, 349-358
Salgado L., Coria R. A., et al (2009) Restos de Alvarezsauridae (Theropoda, Coelurosauria) en la Formación Allen (Campaniano-Maastrictiano), en Salitral Ojo de Agua, Provincia de Río Negro, Argentina, Andean Geology 36 1, 67-80
Novas F. E., Kundrat M., et al (2012) A new large pterosaur from the Late Cretaceous of Patagonia, Journal of Vertebrate Paleontology 32 6, 1447-1452 doi:10.1080/02724634.2012.703979
Currie P. J., Paulina Carabajal A. (2012) A new specimen of Austroraptor cabazai, Pol, Canale, Porfiri and Calvo, 2008 (Dinosauria, Theropoda, Unenlagiidae) from the latest Cretaceous (Maastrichtian) of Río Negro, Argentina, Ameghiniana 49 4, 662-667
Grellet-Tinner G., Fiorelli L. E., et al (2012) Water vapor conductance of the Lower Cretaceous dinosaurian eggs from Sanagasta, La Rioja, Argentina: paleobiological and paleoecological implications for South American faveoloolithid and megaloolithid eggs, Palaios 27, 35-47 doi:10.2110/palo.2011.p11-061r
Sterli J., de la Fuente M. S., et al (2013) A new species of meiolaniform turtle and a revision of the Late Cretaceous Meiolaniformes of South America, Ameghiniana 50 2, 240-256
O'Gorman J. P. (2016) A small body sized non-aristonectine elasmosaurid (Sauropterygia,\r\nPlesiosauria) from the Late Cretaceous of Patagonia with comments on the relationships of the patagonian and antarctic elasmosaurids, Ameghiniana 53 3, 245-268
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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