Also known as Locality 3 (Simpson and Paula Couto 1981)
Where: Acre, Brazil (8.8° S, 72.8° W: paleocoordinates 8.9° S, 72.5° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Quaternary (2.6 - 0.0 Ma)
• Probably Quaternary representatives of modern species (Gasparini et al. 2021), rather than late Miocene species, as originally proposed by Frailey and Campbell (2012), who had previously written:
•
•Basal conglomerates of the Iça Formation (=Acre Conglomerate Member of the Madre de Dios Formation in Peru), western Amazon Basin. The conglomerate is separated from the underlying Solimoes Formation (=Contamana Group, in part, in Peru) by the Ucayali Unconformity of Kummel (1948) (Campbell et al., 2006, 2010). The basal conglomerates of the Iça Formation are stratigraphically below an ash horizon in that formation located in Peru ~250 km to the southeast that has been 40A/39Ar dated to 9.01±0.28 (Campbell et al., 2001) The age of the fossils from the conglomerate is, therefore, presumed to be late Miocene, or Chasicoan/Huayquerian SALMA.
• member-level stratigraphic resolution
Environment/lithology: fluvial; lithified, black conglomerate
Size class: macrofossils
Collected by G. G. Simpson and L. I. Price in 1956
Primary reference: C. D. Frailey and K. E. Campbell. 2012. Two new genera of peccaries (Mammalia, Artiodactyla, Tayassuidae) from Upper Miocene deposits of the Amazon Basin. Journal of Paleontology 86(5):852-877 [C. Jaramillo/G. Ballen/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 137876: authorized by Carlos Jaramillo, entered by Gustavo Ballen on 31.12.2012, edited by Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Craniata indet. Linnaeus 1758 | |
Pisces | |
"Pisces indet." = Osteichthyes
"Pisces indet." = Osteichthyes Huxley 1880 bony fish | |
Mammalia | |
Mammalia indet. Linnaeus 1758 mammal | |
Xenarthra indet. edentate | |
Cingulata indet. Illiger 1811 edentate | |
Glyptodontidae indet. Burmeister 1879 glyptodon | |
Dasypodidae indet. Gray 1821 armadillo | |
Rodentia indet. Bowdich 1821 rodent | |
"Sylvochoerus woodburnei n. gen. n. sp." = Tayassu pecari
"Sylvochoerus woodburnei n. gen. n. sp." = Tayassu pecari Link 1795 white-lipped peccary AMNH 55811 (holotype)
| |
Toxodontidae indet. Ameghino 1889 notoungulate | |
Notiomastodon platensis Ameghino 1888 gomphothere | |
Reptilia | |
Testudinata indet. Oppel 1811 turtle | |
Testudinidae indet. Batsch 1788 turtle | |
Crocodyliformes indet. crocodilian | |
unclassified | |
Plantae indet. Haeckel 1866 |