Rio Acre (Miocene of Brazil)

Where: Acre, Brazil (10.1° S, 66.9° W: paleocoordinates 10.4° S, 64.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Solimoes Formation, Tortonian (11.6 - 7.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: fluvial-deltaic; siliciclastic sediments

Size class: macrofossils

Preservation: original phosphate

Primary reference: 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55602: authorized by Mark Uhen, entered by Mark Uhen on 01.11.2005, edited by Juan Carrillo, Grace Varnham and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Potamotrygonidae
Aves
  -
Aves indet.3 Linnaeus 1758 bird
 Suliformes - Anhingidae
Anhinga cf. grandis1 Martin and Mengel 1975 darter
Macranhinga ranzii1 Alvarenga and Guilherme 2003 darter
Reptilia
 Crocodylia - Alligatoridae
Acresuchus pachytemporalis8 Souza-Filho et al. 2019 crocodilian
? Caiman indet.3 Spix 1825 caiman
Purussaurus sp.1 Barbosa Rodrigues 1892 crocodilian
Purussaurus brasiliensis n. gen. n. sp.1 Barbosa-Rodrigues 1892 crocodilian
Type (anterior half of right dentary)
Mourasuchus sp.1 Price 1964 crocodilian
"Mourasuchus nativus" = Mourasuchus arendsi1 Bocquentin Villanueva 1984 crocodilian
 Crocodylia - Gavialidae
Hesperogavialis "sp. 1"1 Bocquentin Villanueva and Buffetaut 1981 crocodilian
Hesperogavialis "sp. 2"1 Bocquentin Villanueva and Buffetaut 1981 crocodilian
Gryposuchus sp.1 Gürich 1912 crocodilian
Gryposuchus jessei n. gen. n. sp.4 Gürich 1912 crocodilian
Holotype (partial skull)
 Crocodylia -
? Gavialosuchus indet.3 Toula and Kail 1885 crocodilian
 Crocodylia - Crocodylidae
Charactosuchus sansoai n. sp.1 Souza Filho 1991 crocodile
Charactosuchus fieldsi1 Langston 1965 crocodile
 Crocodylia -
? Brachygnathosuchus indet.3 Mook 1921 crocodilian
 Testudines - Testudinidae
Testudinidae indet.3 Batsch 1788 turtle
Chelonoidis sp.1 Fitzinger 1835 turtle
 Testudines - Chelidae
"Chelus colombianus" = Chelus colombianus1, "Chelus lewisi" = Chelus colombianus1
"Chelus colombianus" = Chelus colombianus1 Wood 1976 Chelus colombiana
"Chelus lewisi" = Chelus colombianus1 Wood 1976 Chelus colombiana
 Testudines - Pelomedusidae
Pelomedusidae indet.3 Cope 1868 sideneck turtle
entered as "Pelomedisidae"
 Testudines - Podocnemididae
Stupendemys sp.1 Wood 1976 sideneck turtle
Podocnemis bassieri1 river turtle
 Squamata - Boidae
Waincophis sp.7 Albino 1987 boa
 Squamata -
Colombophis portai7 Hoffstetter and Rage 1977 snake
Colombophis spinosus7 Hsiou et al. 2010 snake
Mammalia
 Didelphimorphia - Didelphidae
Didelphis solimoensis7 Couzzol et al. 2006 large American opossum
 Rodentia - Echimyidae
Heteropsomyinae indet.5 Anthony 1917 spiny rat
 Rodentia - Dinomyidae
Scleromys colombianus1 Fields 1957 caviomorph
Gyriabrus sp.1 Ameghino 1891 caviomorph
Eumegamys paranensis1 Kraglievich 1926 caviomorph
Telicomys amazonensis1 Frailey 1986 caviomorph
Telicomys amazonensis5 Frailey 1986 caviomorph
Tetrastylus sp.5 Ameghino 1886 caviomorph
Ferigolomys pacarana5 Kerber et al. 2018 caviomorph
Simplimus sp.1 Ameghino 1904 caviomorph
Potamarchus murinus5 Burmeister 1885 caviomorph
 Rodentia - Neoepiblemidae
Neoepiblemidae indet.5, Phoberomys sp.5, Phoberomys sp.6, "Neoepiblema horridula" = Neoepiblema horridula1, "Neoepiblema ambrosettianus" = Neoepiblema horridula1, "Neoepiblema ambrosettianus" = Neoepiblema horridula5
Neoepiblemidae indet.5 Kraglievich 1926 caviomorph
Phoberomys sp.5 Kraglievich 1926 caviomorph
Phoberomys sp.6 Kraglievich 1926 caviomorph
"Neoepiblema horridula" = Neoepiblema horridula1 Ameghino 1886 caviomorph
"Neoepiblema ambrosettianus" = Neoepiblema horridula1 Ameghino 1886 caviomorph
"Neoepiblema ambrosettianus" = Neoepiblema horridula5 Ameghino 1886 caviomorph
 Rodentia - Erethizontidae
Erethizontidae indet.5 Bonaparte 1845 porcupine
 Rodentia - Cuniculidae
Cuniculidae indet.5 Miller and Gidley 1918 caviomorph
 Rodentia - Hydrochoeridae
Cardiatherium sp.5 Ameghino 1883 caviomorph
 Rodentia - Dasyproctidae
Dasyproctidae indet.5 Gray 1825 caviomorph
 Rodentia - Caviidae
Caviodon sp.5 Ameghino 1885 caviomorph
 Primates - Cebidae
Acrecebus fraileyi1 Kay and Cozzuol 2006 monkey
 Primates - Atelidae
Stirtonia sp.1 Hershkovitz 1970 monkey
Solimoea acrensis1 Kay and Cozzuol 2006 monkey
 Chiroptera - Noctilionidae
Noctilio lacrimaelunaris1 Czaplewski 1996 bulldog bat
 Chiroptera - Molossidae
Molossidae indet.7 Gervais 1856 free-tailed bat
 Panameriungulata - Proterotheriidae
cf. Proterotherium sp.1 Ameghino 1883 placental
 Panameriungulata - Macraucheniidae
Macraucheniidae indet.3 Ameghino 1889 placental
Cullinia sp.1 Cabrera and Kraglievich 1931 placental
 Cetacea - Platanistidae
cf. Pomatodelphis bobengi7 Case 1934 toothed whale
 Cetacea - Pontoporiidae
Pontoporiidae indet.7 Gray 1870 toothed whale
 Cetacea - Iniidae
Plicodontinia mourai1 Miranda-Ribeiro 1938 toothed whale
cf. Ischyrorhynchus sp. Ameghino 1891 toothed whale
Ischyrorhynchus vanbenedeni1 Ameghino 1891 toothed whale
Saurocetes sp.1 Burmeister 1871 toothed whale
 Sirenia - Trichechidae
Ribodon limbatus1 Ameghino 1883 manatee
 Proboscidea - Gomphotheriidae
"Amahuacatherium peruvium" = Notiomastodon platensis1
"Amahuacatherium peruvium" = Notiomastodon platensis1 Ameghino 1888 gomphothere
 Notoungulata - Haplodontheriidae
"Toxodontherium listai" = Haplodontherium wildei1 Ameghino 1885 notoungulate
Trigodon sp.1 Ameghino 1882 notoungulate
Abothrodon pricei1 Paula Couto 1956 notoungulate
Mesotoxodon pricei1 notoungulate
Neotrigodon utoquineae1 Spillman 1949 notoungulate
Trigodonops lopesi1 Roxo 1821 notoungulate
 Notoungulata - Toxodontidae
Paratrigodon sp.7 Cabrera and Kraglievich 1931 notoungulate
Gyrinodon quasus1 notoungulate
Palaeotoxodon sp.7 Ameghino 1904 notoungulate
Neotoxodon pascuali1 notoungulate
Minitoxodon acrensis1 notoungulate
Mesenodon juruaensis1 notoungulate
 Notoungulata - Leontiniidae
Purperia cribatidens7 Paula Couto 1981 notoungulate
 Astrapotheria - Astrapotheriidae
"? Synastrapotherium sp." = Xenastrapotherium3, Xenastrapotherium amazonense7
"? Synastrapotherium sp." = Xenastrapotherium3 Kraglievich 1928 placental
Xenastrapotherium amazonense7 Paula Couto 1976 placental
 Cingulata - Pachyarmatheriidae
Neoglyptatelus sp.1 Carlini et al. 1997 edentate
 Cingulata - Dasypodidae
Anadasypus sp.1 Carlini et al. 1997 armadillo
 Cingulata - Propalaehoplophoridae
Asterostemma sp.1 Ameghino 1889 edentate
 Cingulata - Pampatheriidae
Kraglievichia sp.1 Castellanos 1927 edentate
 Cingulata - Glyptodontidae
Paraglyptodon sp.1 Castellanos 1932 glyptodon
Plohophorus sp.1 Ameghino 1887 glyptodon
  - Mylodontidae
Mylodontidae indet.1 Ameghino 1889 edentate
gen. et sp. nov.
"Stenodon campbelli n. gen. n. sp." = Urumacotherium campbelli3 Frailey 1986 edentate
"Urumacotherium campbelli" = Urumacotherium campbelli1 Frailey 1986 edentate
Octodontobradys puruensis1 Santos et al. 1993 edentate
Ranculcus sp.1 Ameghino 1891 edentate
Pseudoprepotherium venezuelanum1 Hoffstetter 1961 edentate
 Megatherioidea - Megalonychidae
Megalonychidae indet.3 Gervais 1855 edentate
cf. Hapalops sp.1 Ameghino 1887 edentate
Pliomorphus sp.1 Ameghino 1885 edentate
cf. Protomegalonyx sp.1 Kraglievich 1925 edentate
 Megatherioidea - Megatheriidae
cf. Planops sp.1 Ameghino 1887 edentate
 Megatherioidea - Nothrotheriidae
Mionothropus cartellei2 De Iuliis et al. 2011 edentate
type: LACM 4609 ⁄ 117533 (= Nothropus priscus Frailey, 1986).
 Theriamorpha -
"Tardigrada indet." = Folivora1
"Tardigrada indet." = Folivora1 Delsuc et al. 2001 edentate
Actinopteri
 Osteoglossiformes - Osteoglossidae
Osteoglossidae indet.3 Bonaparte 1832 arowana
 Siluriformes - Callichthyidae
Callichthyidae indet.3 Gill 1872 catfish
 Siluriformes - Doradidae
 Siluriformes - Pimelodidae
Pimelodidae indet.3 Eigenmann and Eigenmann 1918 catfish
 Characiformes - Characidae
Colossoma sp.3 Cuvier 1818
Plesiotoxodon amazonensis
  -
Plesiotoxodon amazonensis1 Paula Couto 1982