Juruá River (Miocene of Brazil)

Also known as Jurua River, Río Juruá

Where: Brazil (7.7° S, 72.5° W: paleocoordinates 8.0° S, 70.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Solimoes Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• The outcrops along the Jurua River belong to the Solimoes Formation, considered to be of Mio-Pliocene age on the basis of pollen, vertebrates and invertebrates (Bergqvist et al. 1999).

• formation-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithology not reported

• This formation is a fluvio-lacustrine deposit (Bergqvist et al., 1999).

Size class: macrofossils

Primary reference: A. Miranda-Ribeiro. 1938. Plicodontinia mourai. Livro Jubilar do Professor Lauro Travassos 319-321 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 57989: authorized by Mark Uhen, entered by Mark Uhen on 12.01.2006, edited by Philip Mannion and Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Mammalia
 Sirenia - Trichechidae
Trichechus sp.3 Linnaeus 1758 manatee
precise locality information is lacking
  -
 Cetacea - Iniidae
Plicodontinia mourai n. gen. n. sp.
Plicodontinia mourai n. gen. n. sp. Miranda-Ribeiro 1938 toothed whale
 Rodentia - Echimyidae
Phyllomys sp.2 Lund 1839 Atlantic tree-rat
 Rodentia - Erethizontidae
Erethizontidae indet.2 Bonaparte 1845 porcupine
 Rodentia - Neoepiblemidae
Neoepiblemidae indet.2 Kraglievich 1926 caviomorph
Phoberomys sp.2 Kraglievich 1926 caviomorph
cf. Phoberomys sp.2 Kraglievich 1926 caviomorph
 Rodentia - Dinomyidae
Tetrastylus sp.2 Ameghino 1886 caviomorph
Potamarchus adamiae2 Kerber et al. 2016 caviomorph
Potamarchus murinus2 Burmeister 1885 caviomorph
Simplimus sp.2 Ameghino 1904 caviomorph
cf. Scleromys colombianus2 Fields 1957 caviomorph
Scleromys cf. colombianus2 Fields 1957 caviomorph
Telicomys amazonensis2 Frailey 1986 caviomorph
cf. Gyriabrus sp.2 Ameghino 1891 caviomorph
 Rodentia - Hydrochoeridae
Hydrochoeridae indet.2 Gill 1872 caviomorph
 Rodentia - Agoutidae
Eoincamys sp.2 Frailey and Campbell 2004 caviomorph
 Rodentia -
cf. Eobranisamys sp.2 Frailey and Campbell 2004 caviomorph
 Rodentia - Dasyproctidae
Dasyproctidae indet.2 Gray 1825 caviomorph
Reptilia
 Crocodylia - Alligatoridae
Mourasuchus amazonensis n. gen. n. sp.1
Mourasuchus amazonensis n. gen. n. sp.1 Price 1964 crocodilian
DGM-526-R - holotype - nearly complete skull with associated left hemimandible