Earth:Sopas Formation

Sopas Formation
Stratigraphic range: Late Pleistocene
~0.07–0.014 Ma

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Sopas Formation; Stratigraphic range: Late Pleistocene; ~0.07–0.014 Ma PreЄ Є O S D C P T J K Pg N ↓
Type	Geological formation
Location
Country	Uruguay
Extent	Paraná Basin
Type section
Named for	Arroyo Sopas

The Sopas Formation is a Late Pleistocene geologic formation in Uruguay.^[1]^[2]

Fossil content

The following fossils have been reported from the formation:

Didelphimorphia


Genus	Species	Family	Locality	Material	Notes	Images
Didelphis	D. cf albiventris	Didelphidae	Sopas Creek^[3] Río Arapey Grande^[4]

Xenarthra


Genus	Species	Family	Locality	Images
Propraopus	P. sp	Dasypodidae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]
Dasypus	Dasypus novemcinctus	Dasypodidae	Sopas Creek^[3]
Glyptodon	G. clavipes	Glyptodontidae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]	200x200px
Panochthus	P. tuberculatus	Glyptodontidae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]	200x200px
Neuryurus	N. rudis	Glyptodontidae	Pintado^[5]
Pampatherium	P. humboldtii	Pampatheriidae	Pintado^[5] Malo Creek^[6]	200x200px
Glossotherium	G.robustum	Mylodontidae	Sopas Creek^[3] Pintado^[5]	200x200px
Lestodon	L. armatus	Mylodontidae	Pintado^[5]	213x213px
cf. Scelidotherium	S. sp	Mylodontidae	Malo Creek^[6]
Megatherium	M. americanum	Megatheriidae	Pintado^[5] Malo Creek^[6]	200x200px
Nothrotherium	N.maquinense	Nothrotheriidae	Sopas Creek^[3]

Proboscidea


Genus	Species	Family	Locality	Material	Notes	Images
Gomphotheriidae indet.		Gomphotheriidae	Pintado^[5]

Meridiungulata


Genus	Species	Family	Locality
Neolicaphrium	N. recens	Proterotheriidae	Sopas Creek^[3] Río Arapey Grande^[4] Pintado^[5] Malo Creek^[6]
Macrauchenia	M. patagonica	Macraucheniidae	Sopas Creek^[3] Malo Creek^[6]
Toxodon	T. platensis	Toxodontidae	Pintado^[5]

Perissodactyla


Genus	Species	Family	Locality
Tapirus	Tapirus terrestris	Tapiridae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]
Equus	E. neogens	Equidae	Sopas Creek^[3] Pintado^[5]
Hippidion	H. principale	Equidae	Sopas Creek^[3] Pintado^[5]

Artiodactyla


Genus	Species	Family	Locality	Notes
Antifer	A.ultra	Cervidae	Sopas Creek^[3] Pintado^[5]
Ozotoceros	O. bezoarticus	Cervidae	Pintado^[5] Malo Creek^[6]	The Modern Pampas Deer
Morenelaphus	brachyceros	Cervidae	Pintado^[5]
Paraceros	P. fragilis	Cervidae	Pintado^[5]
Tayassu	Tayassu pecari	Tayassuidae	Sopas Creek^[3]	White-Lipped Peccary
Catagonus	C. sp	Tayassuidae	Sopas Creek^[3] Pintado^[5]
Hemiauchenia	H. paradoxa	Camelidae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]
Llama	L. sp	Camelidae	Sopas Creek^[3] Pintado^[5]

Carnivora


Genus	Species	Family	Locality	Notes
Puma	P. concolor	Felidae	Sopas Creek^[3] Pintado^[5]	A mountain lion
Panthera	P. onca	Felidae	Sopas Creek^[3] Malo Creek^[6]	A Jaguar
Smilodon	S. fatalis	Felidae	Tres Cruces Grande Creek^[7]
Smilodon	S. populator	Felidae	Pintado^[5] Malo Creek^[6]
Leopardus	L. pardalis	Felidae	Malo Creek^[6]
Lontra	L. longicaudis	Mustelidae	Malo Creek^[6]
Dusicyon	D. avus	Canidae	Sopas Creek^[3]
Lycalopex	L. gymnoceras	Canidae	Sopas Creek^[3] Malo Creek^[6]
Protocyon	P. troglodytes	Canidae	Sopas Creek^[3]
Tremarctinae indt		Ursidae	Pintado^[5]

Rodentia


Genus	Species	Family	Locality	Notes	Images
Cavia	C. sp	Caviidae	Sopas Creek^[3] Pintado^[5] Malo Creek^[6]
Microcavia	M. criolloensis	Caviidae	Sopas Creek^[3]
Neochoerus	N. cf. aesopi	Caviidae	Malo Creek^[6]		200x200px
Hydrochoerus	H. hydrochaeris	Caviidae	Pintado^[5] Malo Creek^[6]	Capybara	200x200px
Dolichotis	D. sp.	Caviidae	Malo Creek^[6]
Galea	G. sp.	Caviidae	Malo Creek^[6]
Holochilus	H. sp.	Cricetidae	Pintado^[5]
Lundomys	L. molitor	Cricetidae	Pintado^[5]
Reithrodon	R. sp.	Cricetidae	Malo Creek^[6]
cf. Wilfredomys	cf. W. oenax	Cricetidae	Malo Creek^[6]
Coendou	C. magnus	Erethizontidae	Pintado^[5] Malo Creek^[6]
Myocastor	M. coypus	Echimyidae	Pintado^[5]	Nutria

References

↑ Sopas Formation at Fossilworks.org
↑ Ubilla, M.; Martínez, S. (2016). "Continental Beds". Geology and Paleontology of the Quaternary of Uruguay. Montevideo: Springer International Publishing. pp. 29–61. doi:10.1007/978-3-319-29303-5.
↑ ^3.00 ^3.01 ^3.02 ^3.03 ^3.04 ^3.05 ^3.06 ^3.07 ^3.08 ^3.09 ^3.10 ^3.11 ^3.12 ^3.13 ^3.14 ^3.15 ^3.16 ^3.17 ^3.18 ^3.19 ^3.20 ^3.21 ^3.22 ^3.23 "col:140159 - Sopas Creek (Pleistocene of Uruguay)". https://paleobiodb.org/app/collections#display=col:140159.
↑ ^4.0 ^4.1 "Río Arapey Grande". 2026-09-21. https://paleobiodb.org/classic/displayCollResults?collection_no=col:211641.
↑ ^5.00 ^5.01 ^5.02 ^5.03 ^5.04 ^5.05 ^5.06 ^5.07 ^5.08 ^5.09 ^5.10 ^5.11 ^5.12 ^5.13 ^5.14 ^5.15 ^5.16 ^5.17 ^5.18 ^5.19 ^5.20 ^5.21 ^5.22 ^5.23 ^5.24 ^5.25 ^5.26 ^5.27 ^5.28 ^5.29 "Pintado". https://paleobiodb.org/classic/displayCollResults?collection_no=col:71274.
↑ ^6.00 ^6.01 ^6.02 ^6.03 ^6.04 ^6.05 ^6.06 ^6.07 ^6.08 ^6.09 ^6.10 ^6.11 ^6.12 ^6.13 ^6.14 ^6.15 ^6.16 ^6.17 ^6.18 ^6.19 ^6.20 ^6.21 ^6.22 ^6.23 "Malo Creek". 2026-09-21. https://paleobiodb.org/classic/displayCollResults?collection_no=col:71325.
↑ "First record of Smilodon fatalis Leidy, 1868 (Felidae, Machairodontinae) in the extra-Andean region of South America (late Pleistocene, Sopas Formation), Uruguay: Taxonomic and paleobiogeographic implications" (in en). Quaternary Science Reviews 180. 2018-01-15. doi:10.1016/j.qua. ISSN 0277-3791. https://www.sciencedirect.com/science/article/abs/pii/S0277379117305838.

Bibliography

Corona, Andrea; Ubilla, Martín; Perea, Daniel (2019), "New records and diet reconstruction using dental microwear analysis for Neolicaphrium recens Frenguelli, 1921 (Litopterna, Proterotheriidae)", Andean Geology 46: 153–167, doi:10.5027/andgeoV46n1-3136, http://www.andeangeology.cl/index.php/revista1/article/view/V46n1-3136/pdf, retrieved 2019-02-28
M. Ubilla. 1985. Mamíferos fósiles, geocronología y paleoecología de la Fm. Sopas (Pleistoceno sup.) del Uruguay. Ameghiniana 22(3–4):185-196.

Template:Stratigraphic formations of Uruguay

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Original source: https://en.wikipedia.org/wiki/Sopas Formation. Read more

[1] Sopas Formation at Fossilworks.org

[2] Ubilla, M.; Martínez, S. (2016). "Continental Beds". Geology and Paleontology of the Quaternary of Uruguay. Montevideo: Springer International Publishing. pp. 29–61. doi:10.1007/978-3-319-29303-5.

[:1-3] 3.00 ^3.01 ^3.02 ^3.03 ^3.04 ^3.05 ^3.06 ^3.07 ^3.08 ^3.09 ^3.10 ^3.11 ^3.12 ^3.13 ^3.14 ^3.15 ^3.16 ^3.17 ^3.18 ^3.19 ^3.20 ^3.21 ^3.22 ^3.23 "col:140159 - Sopas Creek (Pleistocene of Uruguay)". https://paleobiodb.org/app/collections#display=col:140159.

[:2-4] 4.0 ^4.1 "Río Arapey Grande". 2026-09-21. https://paleobiodb.org/classic/displayCollResults?collection_no=col:211641.

[:3-5] 5.00 ^5.01 ^5.02 ^5.03 ^5.04 ^5.05 ^5.06 ^5.07 ^5.08 ^5.09 ^5.10 ^5.11 ^5.12 ^5.13 ^5.14 ^5.15 ^5.16 ^5.17 ^5.18 ^5.19 ^5.20 ^5.21 ^5.22 ^5.23 ^5.24 ^5.25 ^5.26 ^5.27 ^5.28 ^5.29 "Pintado". https://paleobiodb.org/classic/displayCollResults?collection_no=col:71274.

[:4-6] 6.00 ^6.01 ^6.02 ^6.03 ^6.04 ^6.05 ^6.06 ^6.07 ^6.08 ^6.09 ^6.10 ^6.11 ^6.12 ^6.13 ^6.14 ^6.15 ^6.16 ^6.17 ^6.18 ^6.19 ^6.20 ^6.21 ^6.22 ^6.23 "Malo Creek". 2026-09-21. https://paleobiodb.org/classic/displayCollResults?collection_no=col:71325.

[7] "First record of Smilodon fatalis Leidy, 1868 (Felidae, Machairodontinae) in the extra-Andean region of South America (late Pleistocene, Sopas Formation), Uruguay: Taxonomic and paleobiogeographic implications" (in en). Quaternary Science Reviews 180. 2018-01-15. doi:10.1016/j.qua. ISSN 0277-3791. https://www.sciencedirect.com/science/article/abs/pii/S0277379117305838.

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