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Casamayor, Argentina

Formation	Casamayor
Age:	55.8 - 48.0 Ma Eocene
Interval	Casamayoran
Lithology	mudstone
Number of Collections	3
Number of Occurrences	29

Recorded Sample Locations

Location	Region	Stratigraphic Name
Oficina del Diablo	Escalante Department, Chubut Province, Argentina	Casamayor
Casamayor bed 1	Deseado Department, Santa Cruz Province, Argentina	Casamayor

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Plicirhynchia plicigera species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Notosariidae : Plicirhynchia : *Plicirhynchia plicigera*	55.8 - 48 Ma Eocene
Tegulorhynchia squamosa species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Notosariidae : Tegulorhynchia : *Tegulorhynchia squamosa*	55.8 - 48 Ma Eocene
Neothyris lenticularis species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratellidae : Neothyris : *Neothyris lenticularis*	55.8 - 48 Ma Eocene
Terebratella dorsata species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratellidae : Terebratella : *Terebratella dorsata*	55.8 - 48 Ma Eocene
Terebratella patagonica species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratellidae : Terebratella : *Terebratella patagonica*	55.8 - 48 Ma Eocene
Carcharodon sp. genus	6	Animalia : Chordata : Elasmobranchii : Lamniformes : Lamnidae : *Carcharodon*	55.8 - 48 Ma Eocene
Carcharodon auriculatus species	7	Animalia : Chordata : Elasmobranchii : Lamniformes : Lamnidae : Carcharodon : *Carcharodon auriculatus*	55.8 - 48 Ma Eocene
Trigonostylops sp. genus	6	Animalia : Chordata : Mammalia : Trigonostylopidae : *Trigonostylops*	55.8 - 48 Ma Eocene
Pleurostylodon sp. genus	6	Animalia : Chordata : Mammalia : Isotemnidae : *Pleurostylodon*	55.8 - 48 Ma Eocene
Thomashuxleya sp. genus	6	Animalia : Chordata : Mammalia : Isotemnidae : *Thomashuxleya*	55.8 - 48 Ma Eocene
Notopithecus adapinus species	7	Animalia : Chordata : Mammalia : Interatheriidae : Notopithecus : *Notopithecus adapinus*	55.8 - 48 Ma Eocene
Notostylops murinus species	7	Animalia : Chordata : Mammalia : Notostylopidae : Notostylops : *Notostylops murinus*	55.8 - 48 Ma Eocene
Florentinoameghinia mystica species	7	Animalia : Chordata : Mammalia : Sirenia : Prorastomidae : Florentinoameghinia : *Florentinoameghinia mystica*	55.8 - 48 Ma Eocene
Hypechinus sp. genus	6	Animalia : Echinodermata : Echinoidea : Camarodonta : Echinidae : *Hypechinus*	55.8 - 48 Ma Eocene
Toxopneustes praecursor species	7	Animalia : Echinodermata : Echinoidea : Camarodonta : Parechinidae : Isechinus : *Toxopneustes praecursor*	55.8 - 48 Ma Eocene
Psammechinus sp. genus	6	Animalia : Echinodermata : Echinoidea : Camarodonta : Parechinidae : *Psammechinus*	55.8 - 48 Ma Eocene
Platypygus sp. genus	6	Animalia : Echinodermata : Echinoidea : Cassiduloida : *Platypygus*	55.8 - 48 Ma Eocene
Iheringiella patagonensis species	7	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Monophorasteridae : Iheringiella : *Iheringiella patagonensis*	55.8 - 48 Ma Eocene
Linthia sp. genus	6	Animalia : Echinodermata : Echinoidea : Spatangoida : Schizasteridae : *Linthia*	55.8 - 48 Ma Eocene
Schizaster sp. genus	6	Animalia : Echinodermata : Echinoidea : Spatangoida : Schizasteridae : *Schizaster*	55.8 - 48 Ma Eocene
Ostrea sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : *Ostrea*	55.8 - 48 Ma Eocene
Jorgechlamys centralis species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Jorgechlamys : *Jorgechlamys centralis*	55.8 - 48 Ma Eocene
Pecten sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Pecten*	55.8 - 48 Ma Eocene
Scalaria sp. genus	6	Animalia : Mollusca : Gastropoda : Epitoniidae : *Scalaria*	55.8 - 48 Ma Eocene
Gibbula dalli species	7	Animalia : Mollusca : Gastropoda : Trochida : Trochidae : Gibbula : *Gibbula dalli*	55.8 - 48 Ma Eocene
Turritella sp. genus	6	Animalia : Mollusca : Gastropoda : Turritellidae : *Turritella*	55.8 - 48 Ma Eocene

References

Tournouër A. (1903) Note sur la géologie et la paléontologie de la Patagonie, Bulletin de la Société Géologique de France 3, 464-473

Simpson G. G. (1932) The supposed association of dinosaurs with mammals of Tertiary type in Patagonia, American Museum Novitates 566, 1-21

Simpson G. G. (1936) Skeletal remains and restoration of Eocene Entelonychia from Patagonia, American Museum Novitates 826, 1-12

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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