Where: La Paz, Bolivia (18.8° S, 66.2° W: paleocoordinates 19.0° S, 65.0° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Umala Formation, Montehermosan to Montehermosan (5.0 - 3.0 Ma)
• This collection had a E. Pliocene but changed it to Montehermosan-Chapadmalalan.
•
•Boscaini et al 2018: a horizon bounded below by Toba 76 and above by another volcanic level, the 2.8 Ma Ayo Ayo tuff ; its age is Montehermosan- Chapadmalalan (early and middle Pliocene).
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Primary reference: L. G. Marshall and T. Sempere. 1991. The Eocene to Pleistocene vertebrates of Bolivia and their stratigraphic context: a review. In R. Suárez-Soruco (ed.), Fósiles y Facies de Bolivia - Vol. 1 Vertebrados (Revista Ténica de YPFB) 12(3-4):631-652 [D. Croft/D. Weinstein/S. Bruning]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 70641: authorized by Darin Croft, entered by Deborah Weinstein on 01.04.2007, edited by Grace Varnham and Carlos Jaramillo
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
cf. Plaina sp. Castellanos 1927 edentate | |
Macroeuphractus sp. Ameghino 1887 armadillo | |
cf. Megatherium sp. Cuvier 1796 edentate | |
Mylodontinae indet. Gill 1872 edentate | |
"Praectenomys rhombidens" = Praectenomys rhombidens, "Praectenomys vagus" = Praectenomys rhombidens
"Praectenomys rhombidens" = Praectenomys rhombidens Quintana 1994 caviomorph
"Praectenomys vagus" = Praectenomys rhombidens Quintana 1994 caviomorph | |
| |
cf. Promacrauchenia sp. Ameghino 1904 placental | |
Posnanskytherium desaguaderoi Liendo Lazarte 1943 notoungulate | |
Microtragulus bolivianus Hoffstetter and Villarroel 1974 metatherian | |
"Didelphoidea indet." = Didelphoidae Gray 1821 marsupial | |
? Caenolestidae indet. Trouessart 1898 marsupial |