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Arroyo Las Chilcas, San Rafael Department, Mendoza Province, Argentina

Lat/Long (Decimal)	-34.905,-69.79
Co-ordinates Derivation	estimated from map
Mindat.org Region (for given coordinates)	San Rafael Department, Mendoza Province, Argentina

Collections

Collection	Reference	Comments	Lithology	Age
Arroyo Las Chilcas (sample 790212/7)	Hillebrandt A. (2006)	Tropidoceras hamulatum horizon	"limestone"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas (T. flandrini horizon, sample 880106/2a)	Hillebrandt A. (2006)	Tropidoceras flandrini horizon	"limestone"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 6 (sample 790212/1)	Hillebrandt A. (2006)	Tropidoceras hamulatum horizon	sandstone	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 7 (sample 790212/2)	Hillebrandt A. (2006)	Lower Carixian	"limestone"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 7 (sample 880106/3)	Hillebrandt A. (2006)	Lower Carixian	"limestone"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 8 (T. cf. zitteli horizon, sample 880106/2)	Hillebrandt A. (2006)	Tropidoceras cf. zitteli horizon	"limestone"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 9 (sample 790212/3)	Hillebrandt A. (2006)	Andidiscus carinatus horizon	siltstone	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, bed 9 (sample 880106/1)	Hillebrandt A. (2006)	Andidiscus carinatus	siltstone	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, level 1444	Riccardi A. C., Damborenea S. E., et al (1991)	"Fanninoceras assemblage zone"	"shale"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, levels 1422, 1424-1425	Riccardi A. C., Damborenea S. E., et al (1991)		"shale"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas/Puesto Araya, levels 1433, 353-356	Riccardi A. C., Damborenea S. E., et al (1991)	Lower part of Dubariceras assemblage zone	"shale"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas/Puesto Araya, levels 1436-1440, 361-362	Riccardi A. C., Damborenea S. E., et al (1991)	Upper part of Dubariceras assemblage zone	"shale"	189.6 - 183 Ma Early Jurassic
Arroyo Las Chilcas, levels 1412-1414, 1258-1267	Riccardi A. C., Damborenea S. E., et al (1991)		sandstone	199.3 - 190.8 Ma Early Jurassic
Arroyo Las Chilcas, lower Epophioceras zone	Riccardi A. C., Damborenea S. E., et al (1991)	Epophioceras Assemblage zone	sandstone	199.3 - 190.8 Ma Early Jurassic

Recorded Fossils

Accepted Name	Hierarchy	Age
Grammatodon sp. genus	Animalia : Mollusca : Bivalvia : Arcida : Parallelodontidae : *Grammatodon*	189.6 - 183 Ma Early Jurassic
Kalentera sp. genus	Animalia : Mollusca : Bivalvia : Venerida : Kalenteridae : *Kalentera*	189.6 - 183 Ma Early Jurassic
Palaeoneilo sp. genus	Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : *Palaeoneilo*	189.6 - 183 Ma Early Jurassic
Otapiria neuquensis species	Animalia : Mollusca : Bivalvia : Ostreida : Pteriidae : Otapiria : *Otapiria neuquensis*	189.6 - 183 Ma Early Jurassic
Epophioceras sp. genus	Animalia : Mollusca : Cephalopoda : Ammonoidea : Asteroceratidae : *Epophioceras*	199.3 - 190.8 Ma Early Jurassic
Epophioceras cognitum species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Asteroceratidae : Epophioceras : *Epophioceras cognitum*	199.3 - 190.8 Ma Early Jurassic
Miltoceras sp. genus	Animalia : Mollusca : Cephalopoda : Ammonoidea : Coeloceratidae : *Miltoceras*	189.6 - 183 Ma Early Jurassic
Miltoceras chilcaense species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Coeloceratidae : Miltoceras : *Miltoceras chilcaense*	189.6 - 183 Ma Early Jurassic
Miltoceras reductispinosum species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Coeloceratidae : Miltoceras : *Miltoceras reductispinosum*	189.6 - 183 Ma Early Jurassic
Miltoceras sellae species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Coeloceratidae : Miltoceras : *Miltoceras sellae*	189.6 - 183 Ma Early Jurassic
Andidiscus behrendseni species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Eoderoceratidae : Andidiscus : *Andidiscus behrendseni*	189.6 - 183 Ma Early Jurassic
Andidiscus carinatus species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Eoderoceratidae : Andidiscus : *Andidiscus carinatus*	189.6 - 183 Ma Early Jurassic
Dubariceras freboldi species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Eoderoceratidae : Dubariceras : *Dubariceras freboldi*	189.6 - 183 Ma Early Jurassic
Eoamaltheus meridianus species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Eoderoceratidae : Eoamaltheus : *Eoamaltheus meridianus*	189.6 - 183 Ma Early Jurassic
Microderoceras birchi species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Eoderoceratidae : Microderoceras : *Microderoceras birchi*	199.3 - 190.8 Ma Early Jurassic
Acanthopleuroceras stahli species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Polymorphitidae : Acanthopleuroceras : *Acanthopleuroceras stahli*	189.6 - 183 Ma Early Jurassic
Tropidoceras demonense species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Polymorphitidae : Tropidoceras : *Tropidoceras demonense*	189.6 - 183 Ma Early Jurassic
Tropidoceras flandrini species	Animalia : Mollusca : Cephalopoda : Ammonitida : Polymorphitidae : Tropidoceras : *Tropidoceras flandrini*	189.6 - 183 Ma Early Jurassic
Tropidoceras hamulatum species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Polymorphitidae : Tropidoceras : *Tropidoceras hamulatum*	189.6 - 183 Ma Early Jurassic
Tropidoceras mediterraneum species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Polymorphitidae : Tropidoceras : *Tropidoceras mediterraneum*	189.6 - 183 Ma Early Jurassic
Juraphyllites libertus species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Juraphyllitidae : Juraphyllites : *Juraphyllites libertus*	189.6 - 183 Ma Early Jurassic

References

Riccardi A. C., Damborenea S. E., et al (1991) Hettangian and Sinemurian (Lower Jurassic) biostratigraphy of Argentina, Journal of South American Earth Sciences 4 3, 159-170

Hillebrandt A. (2006) Ammoniten aus dem Pliensbachium (Carixium und Domerium) von Südamerika, Revue de Paléobiologie, Genève 25, 1-403

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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