Lake Cardiel-Cerro Bayo (Cretaceous to of Argentina)

Where: Santa Cruz, Argentina (48.7° S, 71.4° W: paleocoordinates 55.5° S, 45.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Piedra Clavada Formation, Albian to Albian (113.0 - 93.9 Ma)

Environment/lithology: marine; lithified, massive, yellow, sandy sandstone and lithified, muddy mudstone

• Piedra Clavada Formation cover psamíticos terms of mixed marine environment.
• Increased participation of sandstones and pyroclastic elements. Its basis is given by a powerful package of sandstones light yellowish solid, which are well exposed on the north and south banks of the river Cardiel. A series of coarse-grained sandstone brown, interspersed with whitish tuffs and mudstones.

•Lake Cardiel is surrounded by several hills that emerge from a basaltic plateau.

•(see Ramos, 1982, for the description of the section).

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: surface (in situ),

• The specimens are stored in the Paleobotanical Collection of the museum under catalogue numbers prefixed by BA Pb MEB.

Primary reference: L. Villar de Seoane and S. Archangelsky. 2008. Taxonomy and biostratigraphy of Cretaceous megaspores from Patagonia, Argentina. Cretaceous Research 29:354-372 [C. Jaramillo/J. Moreno]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 150200: authorized by Carlos Jaramillo, entered by Jessica Moreno on 04.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Striatriletes
  -
Erlansonisporites
  -
Erlansonisporites verrucatus Villar de Seoane and Archangelsky 2008
Erlansonisporites sparassis
  -
Pteridopsida
 Marsileales -
Arcellites "sp. A" Miner 1935
Arcellites humilis n. sp. Villar de Seoane and Archangelsky 2008