Rio Acre: Tortonian, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Myliobatiformes - Potamotrygonidae
Potamotrygonidae indet.
Frailey 1986
Mammalia - Rodentia - Dinomyidae
Eumegamys paranensis Kraglievich 1926
Cozzuol 2006
Ferigolomys pacarana Kerber et al. 2018
Kerber 2017
Potamarchus sigmodon
Cozzuol 2006
Potamarchus murinus Burmeister 1885
Kerber 2017
Tetrastylus sp. Ameghino 1886
Kerber 2017
Simplimus sp. Ameghino 1904
Cozzuol 2006
Gyriabrus sp. Ameghino 1891
Cozzuol 2006
Scleromys colombianus Fields 1957
Cozzuol 2006
Telicomys amazonensis Frailey 1986
Cozzuol 2006
Telicomys amazonensis Frailey 1986
Kerber 2017
Mammalia - Rodentia - Neoepiblemidae
Neoepiblemidae indet. Kraglievich 1926
Kerber 2017
Neoepiblema horridula (Ameghino 1886)
Cozzuol 2006
original and current combination Epiblema horridula
Neoepiblema ambrosettianus (Ameghino 1889)
Cozzuol 2006
original and current combination Euphilus ambrosettianus
Neoepiblema ambrosettianus (Ameghino 1889)
Kerber 2017
original and current combination Euphilus ambrosettianus
Phoberomys minima Kraglievich 1940
Cozzuol 2006
    = Phoberomys sp. Kraglievich 1926
Kerber et al. 2017
Phoberomys burmeisteri Kraglievich 1926
Cozzuol 2006
    = Phoberomys sp. Kraglievich 1926
Kerber et al. 2017
Phoberomys bordasi Patterson 1942
Cozzuol 2006
    = Phoberomys sp. Kraglievich 1926
Kerber et al. 2017
Phoberomys sp. Kraglievich 1926
Kerber 2017
Mammalia - Rodentia - Cuniculidae
Cuniculidae indet. Miller and Gidley 1918
Kerber 2017
Mammalia - Rodentia - Hydrochoeridae
Cardiatherium orientalis
Kerber 2017
Cardiatherium sp. Ameghino 1883
Kerber 2017
Mammalia - Rodentia - Caviidae
Caviodon sp. Ameghino 1885
Kerber 2017
Dolichotinae indet.
Kerber 2017
Mammalia - Rodentia - Dasyproctidae
Dasyproctidae indet. Gray 1825
Kerber 2017
Mammalia - Rodentia - Erethizontidae
Erethizontidae indet. Bonaparte 1845
Kerber 2017
Mammalia - Rodentia - Echimyidae
Heteropsomyinae indet. Anthony 1917
Kerber 2017
Mammalia - Primates - Cebidae
Acrecebus fraileyi Kay and Cozzuol 2006
Cozzuol 2006
(1 measurement)
Mammalia - Primates - Atelidae
Stirtonia sp. Hershkovitz 1970
Cozzuol 2006
Solimoea acrensis Kay and Cozzuol 2006
Cozzuol 2006
Mammalia - Chiroptera - Molossidae
Molossidae indet. Gervais 1856
Ribeiro et al. 2013
Mammalia - Chiroptera - Noctilionidae
Noctilio lacrimaelunaris Czaplewski 1996
Cozzuol 2006
Mammalia - Panameriungulata - Proterotheriidae
cf. Proterotherium sp. Ameghino 1883
Cozzuol 2006
Mammalia - Panameriungulata - Macraucheniidae
Macraucheniidae indet. Ameghino 1889
Frailey 1986
Cullinia sp. Cabrera and Kraglievich 1931
Cozzuol 2006
Mammalia - Cetacea - Platanistidae
cf. Pomatodelphis bobengi (Case 1934)
Ribeiro et al. 2013
Mammalia - Cetacea - Iniidae
cf. Ischyrorhynchus sp. Ameghino 1891
1 specimen
Ischyrorhynchus vanbenedeni Ameghino 1891
Cozzuol 2006
Saurocetes sp. Burmeister 1871
Cozzuol 2006
Plicodontinia mourai Miranda-Ribeiro 1938
Cozzuol 2006
nomen dubium belonging to Iniidae
Mammalia - Cetacea - Pontoporiidae
Pontoporiidae indet. Gray 1870
Ribeiro et al. 2013
Mammalia - Cingulata - Pachyarmatheriidae
Neoglyptatelus sp. Carlini et al. 1997
Cozzuol 2006
Mammalia - Cingulata - Glyptodontidae
Plohophorus sp. Ameghino 1887
Cozzuol 2006
Paraglyptodon sp. Castellanos 1932
Cozzuol 2006
Mammalia - Cingulata - Pampatheriidae
Kraglievichia sp. Castellanos 1927
Cozzuol 2006
Mammalia - Cingulata - Propalaehoplophoridae
Asterostemma sp. Ameghino 1889
Cozzuol 2006
Mammalia - Cingulata - Dasypodidae
Anadasypus sp. Carlini et al. 1997
Cozzuol 2006
Mammalia
Tardigrada indet. Latham and Davies 1795
Cozzuol 2006
replaced by Folivora
Mammalia - Megalonychidae
Megalonychidae indet. Gervais 1855
Frailey 1986
Pliomorphus sp. Ameghino 1885
Cozzuol 2006
cf. Protomegalonyx sp. Kraglievich 1925
Cozzuol 2006
cf. Hapalops sp. Ameghino 1887
Cozzuol 2006
Mammalia - Megatheriidae
cf. Planops sp. Ameghino 1887
Cozzuol 2006
Mammalia - Nothrotheriidae
Mionothropus cartellei De Iuliis et al. 2011
De Iuliis et al. 2011
type: LACM 4609 ⁄ 117533 (= Nothropus priscus Frailey, 1986).
Mammalia - Mylodontidae
Mylodontidae indet. Ameghino 1889
Cozzuol 2006
gen. et sp. nov.
Stenodon campbelli n. gen., n. sp. Frailey 1986
Frailey 1986
recombined as Urumacotherium campbelli
Urumacotherium campbelli (Frailey 1986)
Cozzuol 2006
Octodontobradys puruensis Santos et al. 1993
Cozzuol 2006
Pseudoprepotherium venezuelanum Hoffstetter 1961
Cozzuol 2006
Ranculcus sp. Ameghino 1891
Cozzuol 2006
Mammalia - Notoungulata - Haplodontheriidae
Toxodontherium listai Cozzuol 2006
Cozzuol 2006
synonym of Haplodontherium wildei
Abothrodon pricei Paula Couto 1956
Cozzuol 2006
Mesotoxodon pricei
Cozzuol 2006
Trigodonops lopesi Roxo 1821
Cozzuol 2006
Neotrigodon utoquineae Spillman 1949
Cozzuol 2006
Trigodon sp. Ameghino 1882
Cozzuol 2006
Mammalia - Notoungulata - Leontiniidae
Purperia cribatidens Paula Couto 1981
Ribeiro et al. 2013
Mammalia - Notoungulata - Toxodontidae
Gyrinodon quasus
Cozzuol 2006
Palaeotoxodon sp. Ameghino 1904
Ribeiro et al. 2013
Paratrigodon sp. Cabrera and Kraglievich 1931
Ribeiro et al. 2013
Minitoxodon acrensis
Cozzuol 2006
Neotoxodon pascuali
Cozzuol 2006
Mesenodon juruaensis
Cozzuol 2006
Mammalia - Astrapotheria - Astrapotheriidae
? Synastrapotherium sp. Paula Couto 1976
Frailey 1986
synonym of Xenastrapotherium
Xenastrapotherium amazonense (Paula Couto 1976)
Ribeiro et al. 2013
Synastrapotherium amazonense
Mammalia - Sirenia - Trichechidae
Ribodon limbatus Ameghino 1883
Cozzuol 2006
Mammalia - Proboscidea - Gomphotheriidae
Amahuacatherium peruvium Romero-Pittman 1996
Cozzuol 2006
synonym of Notiomastodon platensis
Mammalia - Didelphimorphia
Didelphis sp. Linnaeus 1758
Cozzuol 2006
    = Didelphis solimoensis Couzzol et al. 2006
Ribeiro et al. 2013
Reptilia - Testudines - Testudinidae
Testudinidae indet. Batsch 1788
Frailey 1986
Chelonoidis sp. (Fitzinger 1835)
Cozzuol 2006
original and current combination Geochelone (Chelonoidis)
Reptilia - Testudines - Chelidae
Chelus colombianus Wood 1976
Cozzuol 2006
Chelus lewisi Wood 1976
Cozzuol 2006
synonym of Chelus colombianus
Reptilia - Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868
Frailey 1986
entered as "Pelomedisidae"
Reptilia - Testudines - Podocnemididae
Podocnemis bassieri
Cozzuol 2006
Stupendemys sp. Wood 1976
Cozzuol 2006
Reptilia
Colombophis portai Hoffstetter and Rage 1977
Ribeiro et al. 2013
Colombophis spinosus Hsiou et al. 2010
Ribeiro et al. 2013
Reptilia - Boidae
Waincophis sp. Albino 1987
Ribeiro et al. 2013
Reptilia
? Brachygnathosuchus indet. Mook 1921
Frailey 1986
Hesperogavialis informal sp. 1 Bocquentin Villanueva and Buffetaut 1981
Cozzuol 2006
Hesperogavialis informal sp. 2 Bocquentin Villanueva and Buffetaut 1981
Cozzuol 2006
Gryposuchus sp. Gürich 1912
Cozzuol 2006
Gryposuchus jessei n. gen., n. sp. Gürich 1912
Gürich 1912
Holotype (partial skull)
? Gavialosuchus indet. Toula and Kail 1885
Frailey 1986
Charactosuchus mendesi
Cozzuol 2006
Charactosuchus fieldsi Langston 1965
Cozzuol 2006
Charactosuchus sansoai n. sp. Souza Filho 1991
Cozzuol 2006
Mourasuchus sp. Price 1964
Cozzuol 2006
Mourasuchus nativus (Gasparini 1985)
Cozzuol 2006
synonym of Mourasuchus arendsi
Purussaurus sp. Barbosa Rodrigues 1892
Cozzuol 2006
Purussaurus brasiliensis n. gen., n. sp. Barbosa-Rodrigues 1892
Cozzuol 2006
Type (anterior half of right dentary)
Caiman niteroiensis Souza Filho and Bocquetin 1991
Cozzuol 2006
    = Acresuchus pachytemporalis Souza-Filho et al. 2019
Souza-Filho et al. 2019
UFAC-1486
? Caiman indet. Spix 1825
Frailey 1986
Aves indet. Linnaeus 1758
Frailey 1986
Reptilia - Suliformes - Anhingidae
Anhinga fraileyi
Cozzuol 2006
Anhinga minuta
Cozzuol 2006
Anhinga cf. grandis Martin and Mengel 1975
Cozzuol 2006
Macranhinga ranzii Alvarenga and Guilherme 2003
Cozzuol 2006
Actinopteri - Osteoglossiformes - Osteoglossidae
Osteoglossidae indet. Bonaparte 1832
Frailey 1986
Actinopteri - Characiformes - Characidae
Colossoma sp. Cuvier 1818
Frailey 1986
Actinopteri - Siluriformes - Pimelodidae
Pimelodidae indet. Eigenmann and Eigenmann 1918
Frailey 1986
Actinopteri - Siluriformes - Doradidae
Doradidae indet.
Frailey 1986
Actinopteri - Siluriformes - Callichthyidae
Callichthyidae indet. Gill 1872
Frailey 1986
unclassified
Plesiotoxodon amazonensis Paula Couto 1982
Cozzuol 2006
see common names

Geography
Country:Brazil State/province:Acre
Coordinates: 10.1° South, 66.9° West (view map)
Paleocoordinates:10.4° South, 64.9° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Neogene Epoch:Miocene
Stage:Tortonian 10 m.y. bin:Cenozoic 6
Key time interval:Tortonian
Age range of interval:11.62000 - 7.24600 m.y. ago
Stratigraphy
Formation:Solimoes
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: "siliciclastic"
Includes fossils?Y
Environment:fluvial-deltaic indet.
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:55602
Authorizer:M. Uhen, C. Jaramillo, P. Mannion Enterer:M. Uhen, G. Varnham, J. Carrillo, P. Mannion
Modifier:M. Kouvari Research group:vertebrate
Created:2005-11-01 13:24:49 Last modified:2020-11-30 10:26:08
Access level:the public Released:2005-11-01 13:24:49
Creative Commons license:CC BY
Reference information

Primary reference:

15018. J. B. Villanueva, C. Muizon, and J. P. Souza Filho. 1990. Novos achados de cetaceos longirrostros no Neogeno do Acre, Brasil. Boletim do Museu Paraense Emilio Goeldi, Ciencias da Terra 2:59-64 [M. Uhen/M. Uhen]

Secondary references:

47553 L. P. Bergqvist, C. J. Drehmer, A. M. Ribeiro and E. V. Oliveira. 1999. Aquatic mammal fossils from Brazil: A review. 4(6):28-32 [M. Uhen/M. Uhen]
19222 M. A. Cozzuol. 2006. The Acre vertebrate fauna: Age, diversity, and geography. Journal of South American Earth Sciences 21:185-203 [M. Uhen/M. Uhen]
69332 G. De Iuliis, T. J. Gaudin, and M. J. Vicars. 2011. A new genus and species of Nothrotheriid sloth (Xenarthra, Tardigrada, Nothrotheriidae) from the Late Miocene (Huayquerian) of Peru. Palaeontology 54(1):171-2005 [P. Mannion/G. Varnham]
38345 D. P. Domning. 1982. Evolution of manatees: A speculative history. Journal of Paleontology 56(3):599-619 [M. Uhen/M. Uhen]
18778 C. D. Frailey. 1986. Late Miocene and Holocene mammals, exclusive of the Notoungulata, of the Rio Acre Region, western Amazonia. Contributions in Science 374:1-46 [M. Uhen/M. Uhen]
47640 G. Gürich. 1912. Gryposuchus jessei, ein neus schmalschnauziges Krokodil aus den jüngeren Ablagerungen des oberen Amazonas-Gebietes. Mitteilugen des Mineralogisch, Geologischen Instituts Hamburg 4:59-71 [P. Mannion/P. Mannion]
73095 L. Kerber. 2017. Imigrantes em um continente perdido: O registro fossilífero de roedores Caviomorpha (Mammalia: Rodentia: Ctenohystrica) do Cenozoico do Brasil . Terræ Didatica 13(2):185-211 [P. Mannion/G. Varnham]
64794 L. Kerber, F. R. Negri, A. M. Ribeiro, N. Nasif, J. P. Souza-Filho and J. Ferigolo. 2017. Tropical fossil caviomorph rodents from the Southwestern Brazilian amazonia in the context of the South American faunas: systematics, biochronology and paleobiogeography. Journal of Mammalian Evolution 24(1):57-70 [C. Jaramillo/J. Carrillo]
50874 A. M. Ribeiro, R. H. Madden, F. R. Negri, L. Kerber, A. Schmaltz-Hsiou and K. A. Rodrigues. 2013. Mamíferos fósiles y biocronología en el suroeste de la Amazonia, Brasil. Asociación Paleontológica Argentina, Publicación Especial 14:207-221 [C. Jaramillo/J. Carrillo]
84568 A. Solórzano and M. Núñez-Flores. 2021. Evolutionary trends of body size and hypsodonty in notoungulates and their probable drivers. Palaeogeography, Palaeoclimatology, Palaeoecology 568(110306):1-16 [J. Carrillo/K. Pino]
67823 J. P. Souza-Filho, R. G. Souza, A. S. Hsiou, D. Riff, E. Guilherme, F. R. Negri, and G. M. Cidade. 2019. A new caimanine (Crocodylia, Alligatoroidea) species from the Solimões Formation of Brazil and the phylogeny of Caimaninae. Journal of Vertebrate Paleontology 39:e1528450:1-24 [P. Mannion/P. Mannion]