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Arroyo Chasicó, Buenos Aires Province, Argentina

Lat/Long (Decimal)	-38.6167,-62.9833
Co-ordinates Derivation	estimated from map
Given Location	Buenos Aires, Argentina
Mindat.org Region (for given coordinates)	Buenos Aires Province, Argentina

Collections

Collection	Reference	Stratigraphic Name	Comments	Lithology	Age
Arroyo Chasicó	Bondesio P., Laza J. H., et al (1980)	Arroyo Chasicó	A recent interpretation of radiometric and paleomagnetic data of the ACF supports an age between at least 9.43 and 8.7 Ma (Zarate et al., 2007).	sandstone	10 - 9 Ma Miocene

Recorded Fossils

Accepted Name	Hierarchy	Age
Psilopterus colzecus species	Animalia : Chordata : Aves : Phorusrhacidae : Psilopterus : *Psilopterus colzecus*	10 - 9 Ma Miocene
Chasicotatus ameghinoi species	Animalia : Chordata : Mammalia : Cingulata : Dasypodidae : Chasicotatus : *Chasicotatus ameghinoi*	10 - 9 Ma Miocene
Proeuphractus sp. genus	Animalia : Chordata : Mammalia : Cingulata : Dasypodidae : *Proeuphractus*	10 - 9 Ma Miocene
Vetelia perforata species	Animalia : Chordata : Mammalia : Cingulata : Dasypodidae : Vetelia : *Vetelia perforata*	10 - 9 Ma Miocene
Kraglievichia sp. genus	Animalia : Chordata : Mammalia : Cingulata : Pampatheriidae : *Kraglievichia*	10 - 9 Ma Miocene
Epipeltephilus kanti species	Animalia : Chordata : Mammalia : Cingulata : Peltephilidae : Epipeltephilus : *Epipeltephilus kanti*	10 - 9 Ma Miocene
Proterotheriinae subfamily	Animalia : Chordata : Mammalia : Litopterna : Proterotheriidae : Proterotheriinae	10 - 9 Ma Miocene
Hegetotheriinae subfamily	Animalia : Chordata : Mammalia : Notoungulata : Hegetotheriidae : Hegetotheriinae	10 - 9 Ma Miocene
Paedotherium minor species	Animalia : Chordata : Mammalia : Hegetotheriidae : Paedotherium : *Paedotherium minor*	10 - 9 Ma Miocene
Typotheriopsis sp. genus	Animalia : Chordata : Mammalia : Mesotheriidae : *Typotheriopsis*	10 - 9 Ma Miocene
Pisanodon nazari species	Animalia : Chordata : Mammalia : Notoungulata : Toxodontidae : Pisanodon : *Pisanodon nazari*	10 - 9 Ma Miocene
Cardiomys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Caviidae : *Cardiomys*	10 - 9 Ma Miocene
Cardiomys leufuensis species	Animalia : Chordata : Mammalia : Rodentia : Caviidae : Cardiomys : *Cardiomys leufuensis*	10 - 9 Ma Miocene
Orthomyctera sp. genus	Animalia : Chordata : Mammalia : Rodentia : Caviidae : *Orthomyctera*	10 - 9 Ma Miocene
Parodimys sp. genus	Animalia : Chordata : Mammalia : Rodentia : Caviidae : *Parodimys*	10 - 9 Ma Miocene
Procardiomys martinoi species	Animalia : Chordata : Mammalia : Rodentia : Caviidae : Procardiomys : *Procardiomys martinoi*	10 - 9 Ma Miocene
Lagostominae subfamily	Animalia : Chordata : Mammalia : Rodentia : Chinchillidae : Lagostominae	10 - 9 Ma Miocene
Lagostomus telenkechanum species	Animalia : Chordata : Mammalia : Rodentia : Chinchillidae : Lagostomus : *Lagostomus telenkechanum*	10 - 9 Ma Miocene
Tetrastylus sp. genus	Animalia : Chordata : Mammalia : Rodentia : Dinomyidae : *Tetrastylus*	10 - 9 Ma Miocene
Cardiatherium sp. genus	Animalia : Chordata : Mammalia : Rodentia : Hydrochoeridae : *Cardiatherium*	10 - 9 Ma Miocene
Hydrochoeridae family	Animalia : Chordata : Mammalia : Rodentia : Hydrochoeridae	10 - 9 Ma Miocene
Pseudolycopsis cabrerai species	Animalia : Chordata : Mammalia : Borhyaenidae : Pseudolycopsis : *Pseudolycopsis cabrerai*	10 - 9 Ma Miocene
Chasicostylus castroi species	Animalia : Chordata : Mammalia : Borhyaenidae : Chasicostylus : *Chasicostylus castroi*	10 - 9 Ma Miocene
Hoplophorini tribe	Animalia : Chordata : Mammalia : Xenarthra : Glyptodontidae : Hoplophorini	10 - 9 Ma Miocene
Palaehoplophorini tribe	Animalia : Chordata : Mammalia : Xenarthra : Palaehoplophorini	10 - 9 Ma Miocene
Plohophorini tribe	Animalia : Chordata : Mammalia : Xenarthra : Glyptodontidae : Plohophorini	10 - 9 Ma Miocene
Protomegalonyx chasicoensis species	Animalia : Chordata : Mammalia : Pilosa : Megalonychidae : Protomegalonyx : *Protomegalonyx chasicoensis*	10 - 9 Ma Miocene
Anisodontherium halmyronomum species	Animalia : Chordata : Mammalia : Xenarthra : Megatheriidae : Anisodontherium : *Anisodontherium halmyronomum*	10 - 9 Ma Miocene
Anura order	Animalia : Chordata : Osteichthyes : Eobatrachus : Anura	10 - 9 Ma Miocene
Dicarlesia sp. genus	Animalia : Chordata : Reptilia : Squamata : *Dicarlesia*	10 - 9 Ma Miocene
Testudinidae family	Animalia : Chordata : Reptilia : Testudines : Testudinidae	10 - 9 Ma Miocene

References

Bondesio P., Laza J. H., et al (1980) Estado actual del conocimiento de los vertebrados de la Formación Arroyo Chasicó (Plioceno temprano) de la provincia de Buenos Aires, Actas II Congreso Argentino de Paleontología y Bioestratigrafía y I Congreso Latinoamericano de Paleontología. 3, 101-127

Marshall L. G. (1981) Review of the Hathlyacyninae, an extinct subfamily of South American "dog-like" marsupials, Fieldiana Geology 7, 1-120 doi:10.5962/bhl.title.3520

Brandoni D., De Iuliis G. (2007) A new genus for the Megatheriinae (Xenarthra, Tardigrada, Megatheriidae) from the Arroyo Chasicó Formation (Upper Miocene) of Buenos Aires Province, Argentina, Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 244 1, 53-64 doi:10.1127/0077-7749/2007/0244-0053

Brandoni D. (2009) Descripción del fémur de Protomegalonyx chasicoensis Scillato-Yané (Mammalia, Xenarthra, Megalonychidae) de la Formación Arroyo Chasicó (Mioceno tardío), provincia de Buenos Aires, Argentina. Consideraciones sistemáticas sobre los perezosos de Edad Chasiquense, Ameghiniana 46 3, 513-521

Vucetich M. G., Pérez M. E. (2011) The putative cardiomyines (Rodentia, Cavioidea) of the middle Miocene of Patagonia (Argentina) and the differentiation of the Family Hydrochoeridae, Journal of Vertebrate Paleontology 31 6, 1382-1386 doi:10.1080/02724634.2011.618194

Gonzalez-Ruiz L. R., Scillato-Yané G. J., et al (2012) A new species of Peltephilidae (Mammalia: Xenarthra: Cingulata) from the late Miocene (Chasicoan SALMA) of Argentina, Zootaxa 3359, 55-64

Rasia L. L., Candela A. M. (2017) Lagostomus telenkechanum, sp. nov., a new lagostomine rodent (Caviomorpha, Chinchillidae) from the Arroyo Chasicó Formation (late Miocene; Buenos Aires Province, Argentina), Journal of Vertebrate Paleontology 37 1, e1239205 doi:10.1080/02724634.2017.1239205

de la Fuente M. S., Zacarias G. G., et al (2018) A review of the fossil record of the South American turtles of the clade Pan-Testudinoidea, Bulletin of the Peabody Museum of Natural History

Pérez M. E., Deschamps C. M., et al (2018) Diversity, phylogeny and biogeography of the South American 'Cardiomyine' rodents (Hystricognathi, Caviodea) with a description of the two new species, Papers in Palaeontology 4 1, 1-19

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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