Contamana, CTA 20-2 (Cretaceous to of Peru)

Where: Loreto, Peru (7.2° S, 75.0° W: paleocoordinates 13.9° S, 48.4° W)

• coordinate based on unpublished field data

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

Environment/lithology: delta plain; lithified, argillaceous, carbonaceous sandstone and lithified, black, argillaceous shale

• The Raya Formation is interpreted to have been deposited in delta plain-shallow marine-estuarine environments and consists of organic-rich massive to thin-bedded sandstones intercalated with black shales (Kummel, 1948).

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: chemical, hydrochloric, hydroflouric, sieve

Primary reference: P. Mejia-Velazquez, S. R. Manchester, and C. Jaramillo. 2012. Floristic reconstruction of two Lower Cretaceous sections from Peru during the period of early angiosperm diversification and their climatic implications. 13th International Palynological Congress and 9th International Organization of Palaeobotany Conference GS02-GS006 [C. Jaramillo/G. Doria/A. Cardenas ]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 144308: authorized by Carlos Jaramillo, entered by Gabriela Doria on 03.05.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Cycadopsida
 Gnetales -
Elaterosporites protensus Jardiné 1967 elaterate
Elaterocolpites "minutielateratus" Jardiné and Magloire 1965 elaterate