Divisadero Largo: Divisaderan, Argentina
collected by E. Rolleri

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Sebecidae
Ilchunaia parva n. gen., n. sp. Rusconi 1946
López 2010
Sebecosuchia indet. (Colbert 1946)
Gasparini 1984 1 specimen
MLP 73-III-15-1 (premaxilla joined with anterior part of the mandible)
    = Barinasuchus sp. Paolillo and Linares 2007
Paolillo and Linares 2007
Reptilia
Cunampaia simplex n. gen., n. sp. Rusconi 1946
López 2010
nomen dubium belonging to Mesoeucrocodylia
Mammalia
Groeberia minoprioi n. gen., n. sp. Patterson 1952
1 specimen
MMMP 738, holotype, mandible
Groeberia pattersoni n. sp. Simpson 1970
López 2010
Mammalia - Panameriungulata - Adianthidae
Adiantoides leali n. gen., n. sp. Simpson and Minoprio 1949
1 specimen
MNHM 3004 PV, skull
Mammalia - Panameriungulata - Proterotheriidae
Phoradiadius divortiensis n. gen., n. sp. Simpson et al. 1962
8 specimens
MACN 18.061, maxilla M2-3, holotype; MCZ 7407, maxilla M3; MCZ 7416, dentary m2; MNHM 3005 PV, dentary m3; AMNH 45932, mandible i3, p2-4; AMNH 45933, dentary m3; AMNH 45931, maxilla ?dP3-4, ?M1; AMNH 45930, maxilla P3-M3
Mammalia - Notoungulata
? Notoungulata indet. Roth 1903
1 specimen
MACN 16610, mandible p3-m2, previously assigned tentatively to Interatheriidae
Mammalia - Notoungulata - Henricosborniidae
Acamana ambiguus n. gen., n. sp. Simpson et al. 1962
1 specimen
MNHM 3010 PV, partial skull
Mammalia - Notoungulata
Allalmeia atalaensis n. gen., n. sp. Rusconi 1946
7 specimens
MNHM 507 PV, partial skull and skeleton; MLP 45-VII-10-9, mandible left c-m1, right p3-m3; MLP 45-VII-10-10, maxilla P3-M3; MLP 45-VII-10-16, maxilla P2-M3; MLP 49-XI-21-21, maxilla M3 partial M2; MCZ 7412, maxilla M1-2, partial M3; MNHM 3009 PV, skull and jaws
Mammalia - Notoungulata - Oldfieldthomasiidae
Brachystephanus postremus n. gen., n. sp. Simpson et al. 1962
18 specimens
AMNH 45946, skull; AMNH 45945, skull; AMNH 45940, P3-M3; AMNH 45941, P2-M2; AMNH 45942, P3-M2; AMNH 45943, P3-M3; AMNH 45944, P3-M2; MCZ 7408, p4-m2; MCZ 7406, m1-3; MCZ 7409, P2-M3; MCZ 7410, M1-2; MCZ 7411, m2-3; MCZ 7413, m1; MLP 49-XI-21-16, skull; MLP 49-XI-21-22, P2-M3; MLP 45-VII-10-12, partial skull; MNHM 3006 PV, P3-M2; MNHM 3007 PV, M2-3
Xenostephanus chiottii n. gen., n. sp. Simpson et al. 1962
5 specimens
AMNH 45947, skull; AMNH 45948, c-m3; MLP 49-XI-21-20, m2-3; MCZ 7415, jaw fragments with P4-M1; MHNM 3008 PV, skull and P4-M3
Mammalia - Astrapotheria - Trigonostylopidae
Trigonostylopidae indet. Ameghino 1901
López 2010
    = Trigonostylops sp. Ameghino 1897
López 2009
MLP 87-II-20-74
see common names

Geography
Country:Argentina State/province:Mendoza
Coordinates: 32.9° South, 68.9° West (view map)
Paleocoordinates:35.2° South, 60.3° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 2-3
Key time interval:Divisaderan
Age range of interval:41.90000 - 35.90000 m.y. ago
Stratigraphy
Formation:Divisadero Largo
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:MLP
Collectors:E. Rolleri
Metadata
Also known as:Divisadero Hill
Database number:92669
Authorizer:J. Alroy, J. Zijlstra, P. Mannion Enterer:J. Alroy, P. Mannion, J. Zijlstra
Modifier:P. Mannion Research group:vertebrate
Created:2009-11-23 13:07:47 Last modified:2021-01-18 10:02:19
Access level:the public Released:2009-11-23 13:07:47
Creative Commons license:CC BY
Reference information

Primary reference:
58084. G. G. Simpson, J. L. Minoprio, and B. Patterson. 1962. The mammalian fauna of the Divisadero Largo Formation, Mendoza, Argentina. Bulletin of the Museum of Comparative Zoology 127(4):239-293 [J. Zijlstra/J. Zijlstra]

Secondary references:

58083 F. L. Agnolin and D. F. Pais. 2006. Revisión de Cunampaia simplex Rusconi, 1946 (Crocodylomorpha, Mesoeucrocodylia; non Aves) del Terciario Inferior de Mendoza, Argentina. Revista del Museo Argentino de Ciencias Naturales 8(1):35-40 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
31227 Z. Gasparini. 1984. New Tertiary Sebecosuchia (Crocodylia: Mesosuchia) from Argentina. Journal of Vertebrate Paleontology 4(1):85-95 [J. Alroy/J. Alroy]
62672 G. M. López. 2009. Primer registro del Orden Astrapotheria en la Formación Divisadero Largo (Mendoza, Argentina). Ameghiniana 46(1):189-192 [P. Mannion/P. Mannion]
58082 G. M. López. 2010. Divisaderan: Land Mammal Age or local fauna?. 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 410-420 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
62581 M. Lorente, J. N. Gelfo, and G. M. López. 2014. Postcranial anatomy of the early notoungulate Allalmeia atalaensis from the Eocene of Argentina. Alcheringa 38(3):398-411 [P. Mannion/P. Mannion]
36755 A. Paolillo and O. J. Linares. 2007. Nuevos cocodrilos Sebecosuchia del Cenozoico Suramericano (Mesosuchia: Crocodylia). Paleobiologia Neotropical 3:1-25 [P. Mannion/P. Mannion]