Where: Santa Cruz, Argentina (48.5° S, 69.3° W)

• Paleocoordinates: 46.4° S, 29.5° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: Baquero Formation, Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: volcaniclastic sediments

Size class: microfossils

Preservation: original sporopollenin

Collection methods: chemical

• Locality described as "from the Tico Amphitheater, Santa Cruz Province, Argentina" and "The microfossils occur near the base of the formation, in the lowermost of several fossiliferous zones (p.73)." This locality is likely equivalent to "NF basal" of Archangelsky and Villar de Seoane (1990) and following the rules, is so entered with Taylor and Taylor (1988) as the primary reference, even if it is less specific than the later. For Archangelsky and Villar de Seoane (1991), they state "Las megasporas fueron recuperadas de tobas organogenas presentes en la base de la Formacion Baquerro, en la localidad Fnfiteatro de Tico, muy cerca del nivel fosilifero Ticoa harrisii (Archangelsky, 1967, Mapa 2, punto fosilifero 1)" (p.353). Since it is definitely NOT from NF Ticoa harrisii, I placed these fossils in NF Basal as well.

Primary reference: W. A. Taylor and T. N. Taylor. 1988. Ultrastructural analysis of selected Cretaceous megaspores from Argentina. Journal of Micropalaeontology 7(1):73-87 [R. Lupia/R. Lupia/R. Lupia]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43734: authorized by Rick Lupia, entered by Rick Lupia on 24.08.2004

Creative Commons license: CC0 (CC0)