Colhué Huapí Norte: Bartonian, Argentina
collected by C. Ameghino 1900

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Sparassodonta
Procladosictis erecta n. sp. Ameghino 1902
Simpson 1948 1 specimen
nomen vanum belonging to Procladosictis
MACN 10328, lower premolar, holotype
Arminiheringia auceta n. sp. Ameghino 1902
Simpson 1967 2 specimens
Syntypes: MACN 10972, facial part of skull with C, crowns of left P3 and M2-3 and right P1-M4; MACN 10970, mandible with crowns of left c, p1-3, m2-4, right c, p1, p3-4. Both specimens may represent the same individual.
Nemolestes spalacotherinus n. gen., n. sp. Ameghino 1902
Simpson 1948 1 specimen
MACN 10330, "tip of canine and two broken lower molars, not associated and of somewhat different character"
Mammalia - Notoungulata - Isotemnidae
Anisolambda latidens n. sp. Ameghino 1901
Simpson 1967 2 specimens
recombined as Isotemnus latidens
MACN 10667, dentary m1-2 (type), dentary m2-3
Pleurostylodon modicus Ameghino 1897
Simpson 1967
some referred material of _Pleurostylodon plexus_
Thomashuxleya rostrata Ameghino 1901
Simpson 1967 2 specimens
MACN 10539, dentary P4-M3; some of MACN 10541, isolated teeth
Mammalia - Notoungulata - Oldfieldthomasiidae
Oldfieldthomasia anfractuosa n. sp. Ameghino 1901
Simpson 1967 3 specimens
MACN 10746, maxilla with dP3-M2 (lectotype or type), right maxilla P2-3, right dentary m1-3
Mammalia - Notoungulata - Notostylopidae
Notostylops murinus Ameghino 1897
Notostylops ampullaceus n. sp. Ameghino 1902
Simpson 1948 1 specimen
synonym of Notostylops murinus
MACN 10506, cranium and left lower jaw with p3-m3, right m3, distal end of right humerus
Eostylops diversidens n. sp. Ameghino 1901
Simpson 1948 1 specimen
nomen vanum belonging to Notostylops
MACN 10484, "Various much broken jaw fragments with parts of upper and lower teeth, probably deciduous molars."
Homalostylops interlissus n. sp. Ameghino 1901
Simpson 1948 1 specimen
nomen vanum belonging to Notostylopidae
MACN 10488, fragmentary edentulous symphyses
Mammalia - Notoungulata
Notopithecus adapinus Ameghino 1897
Infrapithecus diversus n. sp. Ameghino 1902
Simpson 1967 1 specimen
synonym of Notopithecus adapinus
MACN 10838, dentary p2-4
Adpithecus secans Ameghino 1901
Simpson 1967 1 specimen
synonym of Notopithecus adapinus
One referred specimen in Ameghino Collection
Mammalia - Astrapotheria - Trigonostylopidae
Albertogaudrya sp. Ameghino 1901
Simpson 1967 1 specimen
MACN 12002, dentary p3-m1
Albertogaudrya unica Ameghino 1901
Albertogaudrya regia n. sp. Ameghino 1902
Simpson 1967 4 specimens
synonym of Albertogaudrya unica
MACN 12014, broken m3 (lectotype), ?p1, ?p2, partial upper molar
Trigonostylops wortmani Ameghino 1897
Trigonostylops integer n. sp. Ameghino 1901
Simpson 1967 1 specimen
synonym of Trigonostylops wortmani
MACN 10643, upper molar, lectotype; another upper molar and associated P2-3. Said by Simpson (1967b:75, ref. 57943) to be from C.H. = Gran Barranca, but Simpson (1967a:224, ref. 10312) lists the type locality as "North of Colhué-Huapi".
Mammalia - Panameriungulata - Didolodontidae
Euprotogonia patagonica n. sp. Ameghino 1901
Simpson 1948 1 specimen
recombined as Ernestokokenia patagonica
MACN 10687, upper molar, perhaps M2
Euprotogonia trigonalis n. sp. Ameghino 1901
Simpson 1948 1 specimen
synonym of Ernestokokenia patagonica
MACN 10688, M1 or M2
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 45.1° South, 69.0° West (view map)
Paleocoordinates:47.5° South, 59.7° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Paleogene Epoch:Eocene
Stage:Bartonian 10 m.y. bin:Cenozoic 3
Key time interval:Bartonian Zone: Barrancan
Age range of interval:41.20000 - 37.71000 m.y. ago
Stratigraphy
Stratigraphy comments: Barrancan SALMA, late Lutetian–Bartonian (~42-38 Ma) according to Woodburne et al. (2014)
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collectors:C. Ameghino Collection dates:c. 1900
Metadata
Database number:176163
Authorizer:J. Zijlstra Enterer:J. Zijlstra
Modifier:M. Kouvari Research group:vertebrate
Created:2016-01-30 17:15:55 Last modified:2020-09-22 03:15:21
Access level:the public Released:2016-01-30 17:15:55
Creative Commons license:CC BY
Reference information

Primary reference:
57836. R. Cifelli. 1985. Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. American Museum Novitates 2820:1-26 [J. Zijlstra/J. Zijlstra]

Secondary references:

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]
57943 G. G. Simpson. 1967. The Ameghinos' localities for early Cenozoic mammals in Patagonia. Bulletin of the Museum of Comparative Zoology 136:63-76 [J. Zijlstra/J. Zijlstra]