Where: La Paz, Bolivia (17.2° S, 69.0° W: paleocoordinates 17.5° S, 66.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: 6 Member (Mauri Formation), Tortonian (11.6 - 7.2 Ma)

• Townsend and Croft 2010: 7.6 Ma to 10.35 Ma. refs for ages: Villarroel 1974a; Marshall et al. 1992.

•This makes the locality of Huayquerian (SALMA) or Tortonian in age.; Gomez et al. 2024 include the mammal-bearing locus of Villarroel 1974 at locailty ACH-27, at the approx. 80 meter level of their stratigraphic section through Mauri 6 and bracketed by ACH-TUF-4 at 9.42+/-0.1 Ma and ACH-TUF-3 at 10.42+/- 0.09Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Primary reference: P.-A. Saint-André. 1996. Deux nouveaux édentés (Mammalia, Xenarthra) Trachycalyptoides achirense nov gen et nov sp (Glyptodontidae, Sclerocalyptinae) et Xyophorus villarroeli nov sp (Megatheriidae, Nothrotheriinae) du Huayquérien (Miocène supérieur) de l'Altiplano bolivien. Bulletin du Muséum national d'Histoire naturelle, Section C: Sciences de la Terre: Paleontologie, Geologie, Mineralogie 4(18):79-106 [D. Croft/D. Croft]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90023: authorized by Darin Croft, entered by Darin Croft on 29.06.2009, edited by Andrés Cárdenas, Jelle Zijlstra, Miranta Kouvari and Grace Varnham

Creative Commons license: CC BY (attribution)