Los Mangos 7-2766' (Cretaceous to of Colombia)

Where: Huila, Colombia (2.6° N, 75.5° W: paleocoordinates 1.0° S, 45.4° W)

• coordinate stated in text

When: Ocal Formation, Aptian to Aptian (125.0 - 100.5 Ma)

Environment/lithology: interdistributary bay; lithified shale and lithified, gray sandstone

• The overlying Ocal Formation is composed of intercalated shales and sands that accumulated in fluvial channels, coastal and interior floodplains, low energy bays, and distal bay deposits ( Ramon and Fajardo, 2004).
• The overlying Ocal Formation is composed of intercalated shales and sands that accumulated in fluvial channels, coastal and interior floodplains, low energy bays, and distal bay deposits ( Ramon and Fajardo, 2004).

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 139392: authorized by Carlos Jaramillo, entered by Gabriela Doria on 11.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Retipollenites
  -
Retipollenites "gigantoechinus" González-Guzmán 1967
Retitricolpites
  -
Retitricolpites spp. Van der Hammen 1956
Psilatricolpites
  -
Psilatricolpites "simplex" Jaramillo and Dilcher 2001
Brenneripollis
  -
Brenneripollis sp. Juhász and Goczan 1985
Pinopsida
 Pinales - Cheirolepidiaceae
 Pinales -
Ginkgoopsida
 Ephedrales - Ephedraceae
Ephedripites sp. Bolkhovitina and Potonié 1958 jointfir
Ephedripites multicostatus Brenner 1963 jointfir
Retimonocolpites
  -
Monocotyledoneae
  -
Stellatopollis doylei Ibrahim 2002
Cycadopsida
 Gnetales -
Equisetosporites "medius" Daugherty 1941 cycads
Equisetosporites "polaris" Daugherty 1941 cycads
Equisetosporites cf. leptomatus de Lima 1980 cycads
Pteridopsida
  -
 Schizaeales -
 Schizaeales - Schizaeaceae
Cicatricosisporites "pseudodorogensis" Potonie and Gelletich 1933
Cicatricosisporites spp. Potonie and Gelletich 1933
  -
Psilatriletes
  -
Verrucosisporites
  -
Lycopsida
  -
Foveotriletes "titanicus" Van der Hammen and Potonié 1956
Foveotriletes spp. Van der Hammen and Potonié 1956
Impardecispora
  -
Hepaticae
  -
 Gymnospermophyta -
Perotriletes
  -
Verrumonoletes
  -
Verrumonoletes "olivicus" Van der Hammen 1956