Patos, Rio Acre: Late Miocene, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Podocnemididae
cf. Stupendemys sp. Wood 1976
de Broin et al. 1993
UFAC 1544, costal plate; UFAC 1764, right humerus;
    = Stupendemys souzai n. sp. Bocquetin and Melo 2006
Bocquetin and Melo 2006
UFAC 1764, incomplete right humerus (Figure 2), figured by Broin et al. (1993: plates 5,6,7)
Mammalia
Marsupialia indet. (Illiger 1811)
Frailey 1986
LACM 117501
Mammalia - Didelphimorphia
Lutreolina materdei n. sp. Goin and De los Reyes 2011
Goin and De los Reyes 2011
Mammalia - Cingulata - Dasypodidae
Pampatheriinae indet. Paula Couto 1954
Frailey 1986
LACM 117506
Mammalia - Primates - Atelidae
Solimoea acrensis n. sp. Kay and Cozzuol 2006
(2 measurements)
Mammalia - Rodentia - Dinomyidae
cf. Pseudopotamarchus villanuevai Kerber et al. 2016
Kerber et al. 2017
UFAC 5467
Potamarchus murinus Burmeister 1885
Frailey 1986
Tetrastylus sp. Ameghino 1886
Frailey 1986
LACM 117535,
Mammalia - Rodentia - Neoepiblemidae
Cardiomyinae indet. Kraglievich 1930
Frailey 1986
LACM 117508
    = Neoepiblemidae indet. Kraglievich 1926
Vucetich et al. 2010
Neoepiblemidae indet. Kraglievich 1926
Frailey 1986
LACM 117524,117525
Phoberomys sp. Kraglievich 1926
Kerber et al. 2017
UFAC 1817
Mammalia - Rodentia - Erethizontidae
Erethizontidae indet. Bonaparte 1845
Frailey 1986
LACM 117507
Mammalia - Rodentia - Echimyidae
Heteropsomyinae indet. Anthony 1917
Frailey 1986
LACM 117526
Mammalia - Rodentia - Hydrochoeridae
Kiyutherium orientalis Yrigoyen 1993
Frailey 1986
LACM 117509, 117510, 117511, 117512, 117513, 117514, 117515, 117516,117517
    = Cardiatherium sp. Ameghino 1883
Deschamps et al. 2013
Mammalia - Rodentia
Dasyproctidae indet. Gray 1825
Frailey 1986
LACM 117574, 117575, 117576, 117577
    = Neoreomys huilensis Fields 1957
Campbell et al. 2006
Mammalia - Rodentia - Caviidae
Dolichotinae indet.
Kerber et al. 2017
UFAC 5468
Caviodon sp. Ameghino 1885
Kerber et al. 2017
UFAC 5465
Mammalia - Panameriungulata - Macraucheniidae
Macraucheniidae indet. Ameghino 1889
Frailey 1986
Mammalia - Panameriungulata - Proterotheriidae
Proterotheriidae indet. Ameghino 1887
Frailey 1986
LACM 117527
Mammalia - Sirenia - Trichechidae
? Ribodon sp. Ameghino 1883
Frailey 1986
LACM 117532
Actinopteri - Siluriformes - Pimelodidae
Phractocephalus acreornatus Aguilera et al. 2008
Aguilera et al. 2008
UFAC 2093, 2094, 2187, 4498, 4493, 4668, 5073 (paratypes); LACM 128338, 128339 (paratypes)
see common names

Geography
Country:Brazil State/province:Acre
Coordinates: 10.9° South, 69.9° West (view map)
Paleocoordinates:11.2° South, 68.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 6
Key time interval: Late Miocene
Age range of interval: 11.63 - 5.333 m.y. ago
Age estimate: 9.01 to 3.12 Ma (other)
Stratigraphy
Formation:Solimoes
Stratigraphic resolution:formation
Stratigraphy comments: The outcrop is visible only in the low-water season and consists of an intraformational conglom- erate with clasts of clay and silt. It is part of a large paleochan- nel (Fig. 2). The base of the unit is not visible, and its upper part is covered by vegetation.
Lithology and environment
Primary lithology: conglomerate
Secondary lithology: sandstone
Includes fossils?Y
Lithology description: The outcrop is visible only in the low-water season and consists of an intraformational conglom- erate with clasts of clay and silt.
Environment:alluvial fan
Geology comments: Latrubesse et al. (1997) interpreted the Solimoes deposits as being part of a megafan system, with its headwaters in the Peruvian Andes.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:LACM 4611
Database number:134808
Authorizer:C. Jaramillo, E. Vlachos Enterer:G. Ballen, E. Vlachos, J. Carrillo
Created:2012-10-17 06:59:37 Last modified:2012-10-16 14:59:37
Access level:group members Released:2015-10-17 06:59:37
Creative Commons license:CC BY
Reference information

Primary reference:
43303. R. F. Kay and M. A. Cozzuol. 2006. New platyrrhine monkeys from the Solimoes Formation (late Miocene, Acre State, Brazil). Journal of Human Evolution 50(6):673-686 [C. Jaramillo/G. Ballen]

Secondary references:

43724 O. A. Aguilera, J. Bocquentin, J. G. Lundberg and A. Maciente. 2008. A new cajaro catfish (Siluriformes : Pimelodidae : Phractocephalus) from the Late Miocene of southwestern Amazonia and its relationship to Phractocephalus nassi of the Urumaco Formation. Palaeontologische Zeitschrift 82(2):231-245 [C. Jaramillo/G. Ballen]
64030 J. Bocquetin and J. Melo. 2006. Stupendemys souza sp. nov. (Pleurodira, Podocnemididae) from the Miocene - Pliocene of the Solimoes Formation, Brazil. Revista Brasileira de Paleontologia 9(2):187-192 [E. Vlachos/E. Vlachos/E. Vlachos]
64796 K. E. Campbell, C. D. Frailey, and L. Romero-Pittman. 2006. The Pan-Amazonia Ucayali peneplain, late Neogene sefimentation in Amazonia, and the birth of the modern Amazon river system. Palaeogeography, Palaeoclimatology, Palaeoecology 239:166-219 [C. Jaramillo/J. Carrillo]
64028 F. d.e. L. de Broin, J. Bocquetin, and F. R. Negri. 1993. Gigantic turtles (Pleurodira, Podocnemididae) from the Late Miocene - Early Pliocene of South Western Amazon. Bulletin de Institute francaises de etudes andines 22(3):657-670 [E. Vlachos/E. Vlachos]
54852 C. M. Deschamps, M. G. Vucetich, and C. I. M. A. Montalvo Zárate. 2013. Capybaras (Rodentia, Hydrochoeridae, Hydrochoerinae) and their bearing in the calibration of the late Miocene-Pliocene sequences of South America. Journal of South American Earth Sciences 48:145-158 [C. Jaramillo/C. Jaramillo/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]
48411 F. J. Goin and M. De los Reyes. 2011. Contribución al conocimiento de los representantes extintos de Lutreolina Thomas, 1910 (Mammalia, Marsupialia, Didelphidae). Historia Natural 1(2):15-25 [C. Jaramillo/J. Carrillo/J. Carrillo]
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]
38835 M. G. Vucetich, A. A. Carlini, O. Aguilera and M. R. Sánchez-Villagra. 2010. The Tropics as Reservoir of Otherwise Extinct Mammals: The Case of Rodents from a New Pliocene Faunal Assemblage from Northern Venezuela. Journal of Mammalian Evolution 17:265-273 [C. Jaramillo/C. Jaramillo/P. Mannion]