Los Mangos 31-2965' (Cretaceous of Colombia)

Where: Huila, Colombia (2.6° N, 75.5° W: paleocoordinates 1.2° N, 43.5° W)

• coordinate stated in text

When: Alpujarra Formation, Aptian (125.0 - 113.0 Ma)

Environment/lithology: delta plain; lithified sandstone and lithified sandstone

• The Alpujarra Formation (the lowest in the sequence) is mainly sandy and accumulated in floodplains (Ramon and Fajardo, 2004) and tidal-fl ats environments ( Vergara et al., 1995).
• The Alpujarra Formation (the lowest in the sequence) is mainly sandy and accumulated in floodplains (Ramon and Fajardo, 2004) and tidal-flats environments ( Vergara et al., 1995).

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: core, hydrochloric, hydroflouric

Primary reference: P. J. Mejia-Velazquez, D. L. Dilcher, C. A. Jaramillo, L. B. Fortini, and S. R. Manchester. 2012. Palynological composition of a Lower Cretaceous South American tropical sequence: Climatic implications and diversity comparisons with other latitudes. American Journal of Botany 99:1819-1827 [C. Jaramillo/G. Doria/A. Cardenas ]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 139395: authorized by Carlos Jaramillo, entered by Gabriela Doria on 11.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Cycadopsida
 Gnetales -
Equisetosporites "medius" Daugherty 1941 cycads