PBDB Collection

Cañadón Vaca: Lutetian, Argentina

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia - Gruiformes - Phorusrhacidae

	Psilopterinae indet. (Dolgopol de Saez 1927)	Acosta Hospitaleche and Jones 2024	1 specimen
Reptilia - Sebecidae

	cf. Sebecus sp. Stirton 1953	Colbert 1946	1 specimen
	AMNH 3162, tooth

	Sebecus icaeorhinus Simpson 1937	Simpson 1937	2 specimens
	AMNH 3159 (fragmentary cranial remains associated with vertebral centrum and fragmentary femur and fibula) and MMP 235 (fragmentary skull)
Reptilia - Testudines

	Chelonii indet. Latreille 1800	de Broin and de la Fuente 1993
	synonym of Testudines
	Museo de la Plata
Mammalia

	Florentinoameghinia mystica Simpson 1932	Simpson 1967	1 specimen
	AMNH 28402, three upper cheek teeth and skull fragments
Mammalia - Astrapotheria - Astrapotheriidae

	Scaglia kraglievichorum n. gen., n. sp. Simpson 1957	Simpson 1967	1 specimen
	Museo Municipal de Mar del Plata, no. 207, partial skull
Mammalia - Astrapotheria - Trigonostylopidae

	Trigonostylops ? wortmani Ameghino 1897	Simpson 1967	1 specimen
	AMNH 28450, isolated left upper molar. Referred to Trigonostylopidae indet. by Simpson (1967a, ref. 10312) but to ?Trigonostylops wortmani by Cifelli (1985, ref. 57836).

	Albertogaudrya indet. Ameghino 1901	Cifelli 1985
Mammalia - Notoungulata - Henricosborniidae

	Peripantostylops minutus (Ameghino 1901)	Simpson 1948	10 specimens
	AMNH 28494, associated right upper and lower jaws with P3-M3 and p3-m3; AMNH 28986 and 28987, nine upper molars

	Othnielmarshia lacunifera Ameghino 1901	Simpson 1948	20 specimens
	AMNH 28978-28985 and 28988, eight lower and twelve upper molars

	Henricosbornia lophodonta Ameghino 1901	Cifelli 1985
Mammalia - Notoungulata - Oldfieldthomasiidae

	Maxschlosseria consumata (Ameghino 1901)	Simpson 1967
	synonym of Maxschlosseria praeterita
	Isolated upper and lower jaws and skeletal fragments; numerous isolated teeth

	Maxschlosseria minuta (Ameghino 1901)	Simpson 1967	1 specimen
	synonym of Maxschlosseria praeterita
	AMNH 28660, mandible m1-3
Mammalia - Notoungulata - Isotemnidae

	Thomashuxleya externa Ameghino 1901	Simpson 1967	7 specimens
	AMNH 28447, skull; AMNH 28697, lower jaws; AMNH 28756, lower jaws; AMNH 28698, skull and jaws; AMNH 28686, dentary m3; AMNH 28757, partial skull; AMNH 28699, partial skull

	Pleurostylodon similis Ameghino 1901	Simpson 1967	7 specimens
	AMNH 28830, skull and mandible; AMNH 28636, associated right and left P1-M2 and p4-m2; AMNH 28631, p2-m3; AMNH 28661, p3-m1; AMNH 28797, dP1-4; AMNH 28685, P2-M2; AMNH 28874, M2-3

	Isotemnus primitivus Ameghino 1897	Simpson 1967	1 specimen
	AMNH 28650, P3-M3
Mammalia - Notoungulata - Archaeopithecidae

	Acropithecus rigidus (Ameghino 1901)	Simpson 1967
	synonym of Archaeopithecus rogeri
	AMNH 28782, skull; AMNH 28884, left P2-M3, right M1-3, right m1-3, left m2-3; AMNH 28895, skull, mandible, and limb fragments; three partial maxillae with teeth; seven partial mandibles with teeth; ~150 isolated upper cheek teeth; ~150 isolated lower cheek teeth

	Teratopithecus elpidophoros López et al. 2020	López et al. 2020
Mammalia - Notoungulata

	Notopithecus sp. Ameghino 1897	Reguero and Prevosti 2010
Mammalia - Notoungulata - Notostylopidae

	Notostylops pendens (Ameghino 1901)	Simpson 1948
	Many specimens, including: AMNH 28634, skull and jaw (neotype of Simpson, 1948), AMNH 28604, skull and jaw; AMNH 28614, skull; AMNH 28603, dentary with p3-m3

	Notostylops appressus (Ameghino 1902)	Simpson 1948	1 specimen
	AMNH 28589, mandible with p3-m1 and m3, neotype of Simpson (1948)

	Homalostylops sp. Ameghino 1901	Cifelli 1985
	Partial jaw with p3-m2 and some isolated teeth. Referred to _H. parvus_ by Simpson (1948), but Cifelli (1985) suggested that they represent a distinct species.

	Edvardotrouessartia sola Ameghino 1901	Simpson 1948	1 specimen
	AMNH 28654, partial lower jaw with right p2 and m1, left p3-m1
Mammalia - Panameriungulata - Sparnotheriodontidae

	Sparnotheriodon epsilonoides Soria 1980		1 specimen
	Holotype, MACN 18225, pair of mandibles
Mammalia - Panameriungulata - Macraucheniidae

	Victorlemoineia indet. Ameghino 1901	Simpson 1948	4 specimens
	AMNH 28468, M1; 28466, M3; 28465, m1 or m2; 28467, m3
Mammalia - Panameriungulata - Adianthidae

	Adiantoides magnus n. sp. Cifelli and Soria 1983	Cifelli and Soria 1983	1 specimen
	AMNH 28888, dentary m2-3, holotype
Mammalia - Panameriungulata - Protolipternidae

	Asmithwoodwardia cf. subtrigona Ameghino 1901	Simpson 1948	1 specimen
	AMNH 28469
Mammalia - Panameriungulata - Proterotheriidae

	Ricardolydekkeria cf. praerupta Ameghino 1901	Simpson 1948	6 specimens

	Anisolambda amel n. sp. Simpson 1948	Simpson 1948	4 specimens
	AMNH 28503, mandible, holotype; three lower molars

	Anisolambda fissidens Ameghino 1901	Cifelli 1985

	Josepholeidya adunca Ameghino 1901	Simpson 1948	7 specimens
	Upper molars
Mammalia - Panameriungulata - Didolodontidae

	Didolodus sp. Ameghino 1897	Simpson 1970	1 specimen
	MMP 696M, maxilla P2-4

	Didolodus minor n. sp. Simpson 1948	Simpson 1948	5 specimens
	AMNH 28473, M1, holotype; AMNH 28471, P3; 28472, m2; 28470, m3; 28736, M fragment
Mammalia - Sparassodonta

	Patene sp. Simpson 1935	Simpson 1948	1 specimen
	"An isolated upper molar from the Casamayor in Cañadón Vaca suggest the presence of a second, somewhat larger species [of _Patene_], but it is inadequate for certain determination."
Mammalia

	Ideodelphys microscopicus Ameghino 1902	Simpson 1948	1 specimen
	nomen vanum belonging to Marsupialia
	AMNH 28423, edentulous dentary
Mammalia - Polydolopidae

	Polydolops serra Ameghino 1902	Marshall 1982	4 specimens
	AMNH 28425 (M2), 28426 (M2), 28427 (right M2-3, holotype of _Polydolops bocurhor_), 28429. See also Simpson (1948:62).

	Polydolops bocurhor n. sp. Simpson 1948	Simpson 1948	3 specimens
	synonym of Polydolops serra
	AMNH 28427, right M2-3, type; AMNH 28425, M2; AMNH 28426, M2

	Polydolops thomasi Ameghino 1897	Marshall 1982	5 specimens
	AMNH 28420, 28424, 28428, 28443, 28444
see common names

Geography

Country:	Argentina	State/province:	Chubut	County:	Escalante
Coordinates:	45.3° South, 68.0° West (view map)
Paleocoordinates:	47.8° South, 58.1° West
Basis of coordinate:	estimated from map
Geographic resolution:	local area

Time

Period:	Paleogene	Epoch:	Eocene
Stage:	Lutetian	10 m.y. bin:	Cenozoic 2
Key time interval:	Lutetian	Zone:	Vacan
Age range of interval:	47.80000 - 41.20000 m.y. ago

Stratigraphy

Formation:	Sarmiento
Stratigraphic resolution:	group of beds
Stratigraphy comments: Sarmiento Formation, Vacan SALMA (a subdivision of the Casamayoran SALMA), middle Eocene (Woodburne et al. 2014).

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	permineralized
Size of fossils:	macrofossils
Disassociated major elements:	some
Temporal resolution:	time-averaged

Collection methods and comments

Reason for describing collection:	taxonomic analysis
Museum repositories:	MACN

Metadata

Database number:

44956

Authorizer:

D. Croft, E. Vlachos, M. Uhen, J. Zijlstra, R. Butler

Enterer:

D. Croft, E. Vlachos, J. Zijlstra, M. Uhen, R. Butler

Modifier:

M. Kouvari

Research group:

vertebrate

Collections that are a subset of this one:

176170, 176171, 176172, 176173, 176174, 176175

Created:

2004-09-22 13:52:09

Last modified:

2020-09-19 09:08:56

Access level:

the public

Released:

2004-09-22 13:52:09

Creative Commons license:

CC BY

Reference information

Primary reference:

11658.

M. F. Soria. 1980. Una nueva y problemática forma de ungulado del Casamayorense. Actas del Segundo Congreso Argentino de Paleontología y Bioestratigrafía y Primer Congreso Latinoamericano de Paleontología II:193-203 [D. Croft/D. Croft/D. Croft]

Secondary references:

87609		C. Acosta Hospitaleche and W. Jones. 2024. Insights on the oldest terror bird (Aves, Phorusrhacidae) from the Eocene of Argentina. Historical Biology [M. Uhen/M. Uhen]
57836		R. Cifelli. 1985. Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. American Museum Novitates 2820:1-26 [J. Zijlstra/J. Zijlstra]
58245		R. L. Cifelli and M. F. Soria. 1983. Systematics of the Adianthidae (Litopterna, Mammalia). American Museum Novitates 2771:1-25 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
58289		E. H. Colbert. 1946. Sebecus, representative of a peculiar suborder of fossil Crocodilia from Patagonia. Bulletin of the American Museum of Natural History 87(4):221-270 [J. Zijlstra/J. Zijlstra]
42415		F. de Broin and M. de la Fuente. 1993. Les tortues fossiles d'Argentine: synthese [The fossil turtles of Argentina: synthesis]. Annales de Paléontologie (Invertebrés-Vertebrés) 79(3):169-232 [R. Benson/R. Benson/M. Carrano]
67260		Z. B. Gasparini. 1972. Los Sebecosuchia (Crocodilia) del territorio Argentino: Consideraciones sobre su "status" taxonómico. Ameghiniana 9(1):23-34 [P. Mannion/P. Mannion]
72744		G. M. López, J. N. Gelfo, N. Bauzá, M. Bond, and M. F. Tejedor. 2020. Biochron and diversity of Archaeopithecidae (Mammalia, Notoungulata) and a new genus and species from the Eocene of Patagonia, Argentina. Ameghiniana 57(2):103-116 [E. Vlachos/E. Vlachos]
57557		L. G. Marshall. 1982. Systematics of the extinct South American marsupial family Polydolopidae. Fieldiana Geology 12:1-109 [R. Butler/R. Butler]
58079		M. A. Reguero and F. J. Prevosti. 2010. Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina: phylogeny and systematics. In R. H. Madden, A. A. Carlini, M. G. Vucetich, R. F. Kay (eds.), The Paleontology of Gran Barranca: Evolution and Environmental Change through the Middle Cenozoic of Patagonia 148-165 [J. Zijlstra/J. Zijlstra]
14494		P. C. Sereno. 1982. An early Eocene sirenian from Patagonia (Mammalia, Sirenia). American Museum Novitates 2729:1-10 [M. Uhen/M. Uhen/M. Uhen]
10800		G. G. Simpson. 1937. New reptiles from the Eocene of South America. American Museum Novitates 927:1-3 [J. Alroy/J. Wertheim/J. Wertheim]
10369		G. G. Simpson. 1948. The beginning of the age of mammals in South America. Part I. Bulletin of the American Museum of Natural History 91:1-232 [D. Croft/D. Croft/R. Butler]
10312		G. G. Simpson. 1967. The beginning of the age of mammals in South America. Part II. Bulletin of the American Museum of Natural History 137:1-260 [D. Croft/D. Croft/K. Pino]
57986		G. G. Simpson. 1970. Mammals from the early Cenozoic of Chubut, Argentina. Breviora 360:1-13 [J. Zijlstra/J. Zijlstra]
57561		M. O. Woodburne, F. J. Goin, M. Bond, A. A. Carlini, J. N. Gelfo, G. M. López, A. Iglesias and A. N. Zimicz. 2014. Paleogene Land Mammal Faunas of South America; a Response to Global Climatic Changes and Indigenous Floral Diversity. Journal of Mammalian Evolution 21:1-73 [R. Butler/R. Butler]