Cañadón Vaca (Eocene of Argentina)
Where: Chubut, Argentina (45.3° S, 68.0° W: paleocoordinates 47.8° S, 58.1° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Vacan zone, Sarmiento Formation, Lutetian (47.8 - 41.3 Ma)
• Sarmiento Formation, Vacan SALMA (a subdivision of the Casamayoran SALMA), middle Eocene (Woodburne et al. 2014).
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Preservation: permineralized
Reposited in the MACN
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 44956: authorized by Darin Croft, entered by Darin Croft on 22.09.2004, edited by Mark Uhen, Richard Butler, Jelle Zijlstra and Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Mammalia | |
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Florentinoameghinia mystica11 Simpson 1932 mammal AMNH 28402, three upper cheek teeth and skull fragments
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"Polydolops serra" = Polydolops serra7, "Polydolops bocurhor n. sp." = Polydolops serra10, Polydolops thomasi7
"Polydolops serra" = Polydolops serra7 Ameghino 1902 metatherian AMNH 28425 (M2), 28426 (M2), 28427 (right M2-3, holotype of _Polydolops bocurhor_), 28429. See also Simpson (1948:62).
"Polydolops bocurhor n. sp." = Polydolops serra10 Ameghino 1902 metatherian AMNH 28427, right M2-3, type; AMNH 28425, M2; AMNH 28426, M2
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Patene sp.10 Simpson 1935 metatherian "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."
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Didolodus minor n. sp.10 Simpson 1948 placental AMNH 28473, M1, holotype; AMNH 28471, P3; 28472, m2; 28470, m3; 28736, M fragment
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Adiantoides magnus n. sp.3
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Ricardolydekkeria cf. praerupta10, Anisolambda amel n. sp.10, Josepholeidya adunca10, Anisolambda fissidens2
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Victorlemoineia indet.10 Ameghino 1901 placental AMNH 28468, M1; 28466, M3; 28465, m1 or m2; 28467, m3
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"Maxschlosseria consumata" = Maxschlosseria praeterita11, "Maxschlosseria minuta" = Maxschlosseria praeterita11
"Maxschlosseria consumata" = Maxschlosseria praeterita11 Ameghino 1901 notoungulate Isolated upper and lower jaws and skeletal fragments; numerous isolated teeth
"Maxschlosseria minuta" = Maxschlosseria praeterita11 Ameghino 1901 notoungulate AMNH 28660, mandible m1-3
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Notostylops appressus10 Ameghino 1902 notoungulate AMNH 28589, mandible with p3-m1 and m3, neotype of Simpson (1948)
Notostylops pendens10 Ameghino 1901 notoungulate 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
Edvardotrouessartia sola10 Ameghino 1901 notoungulate AMNH 28654, partial lower jaw with right p2 and m1, left p3-m1
Homalostylops sp.2 Ameghino 1901 notoungulate 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.
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"Acropithecus rigidus" = Archaeopithecus rogeri11 Ameghino 1897 notoungulate 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
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Thomashuxleya externa11 Ameghino 1901 notoungulate 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 similis11 Ameghino 1901 notoungulate 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
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Othnielmarshia lacunifera10 Ameghino 1901 notoungulate AMNH 28978-28985 and 28988, eight lower and twelve upper molars
Peripantostylops minutus10 Ameghino 1901 notoungulate AMNH 28494, associated right upper and lower jaws with P3-M3 and p3-m3; AMNH 28986 and 28987, nine upper molars
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Trigonostylops ? wortmani11 Ameghino 1897 placental AMNH 28450, isolated left upper molar. Referred to Trigonostylopidae indet. by Simpson (1967a, ref. 10312) but to ?Trigonostylops wortmani by Cifelli (1985, ref. 57836).
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Scaglia kraglievichorum n. gen. n. sp.11
Scaglia kraglievichorum n. gen. n. sp.11 Simpson 1957 placental Museo Municipal de Mar del Plata, no. 207, partial skull
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| Reptilia | |
"Chelonii indet." = Testudines5
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Sebecus icaeorhinus9 Simpson 1937 crocodilian AMNH 3159 (fragmentary cranial remains associated with vertebral centrum and fragmentary femur and fibula) and MMP 235 (fragmentary skull)
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| Aves | |
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