Catatumbo Basin Paleocene (Paleocene of Colombia)

Where: Norte de Santander, Colombia (9.0° N, 73.0° W: paleocoordinates 6.4° N, 60.5° W)

• coordinate stated in text

• basin-level geographic resolution

When: Los Cuervos Formation, Late/Upper Paleocene (58.7 - 55.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lagoonal; lithified, gray, silty, carbonaceous shale and lithified, argillaceous, silty claystone

• The Palaeocene formation show evidence that was deposited in a brackish marine to fresh-water environment.
• The formation is composed mainly of claystones and shales with coal beds sandwiched in its lower strata and some sandstone beds throughout. The lowermost deposits, measuring 75 meters in thickness, consist of dark grey carbonaceous shales and claystones interbedded with micaceous-carbonaceous siltstones, fine-grained sandstones and narrow coal seams. Occasionally thin limestones showing a con-in-cone structure have been noted. The coals are lignitic to bituminous. Above the coal series, the Los Cuervos is made up of grey and greenish-grey, partly silty and commonly sideritic claystones, the siderite occurring as spherules generally less than 1 millimeter in diameter.

Size class: microfossils

• Pollen grains

Preservation: original sporopollenin

Collection methods: chemical

• From each coal or lignite layer several individual samples were analyzed, or the results of several samples were pooled.

Primary reference: A. E. González-Guzmán. 1967. A palynological study on the upper Los Cuervos and Mirador formations (Lower and middle Eocene; Tibu area, Colombia). 1-68 [C. Jaramillo/A. Cardenas /C. Jaramillo]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 136752: authorized by Carlos Jaramillo, entered by Andrés Cardenas on 04.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Scabratriporites
  -
Scabratriporites moderatus González-Guzmán 1967
Heterocolpites
  -
Heterocolpites palaeocenica Van der Hammen and Garcia de Mutis 1966
Retitricolpites
  -
Retitricolpites adeptus González-Guzmán 1967
Retitricolpites perditus González-Guzmán 1967
Foveotricolpites
  -
Foveotricolpites pomarius Van der Hammen and Garcia de Mutis 1966
Retibrevitricolpites triangulatus
  -
Retibrevitricolpites triangulatus van Hoeken-Klinkenberg 1966
Retibrevitricolpites
  -
Retibrevitricolpites increatus González-Guzmán 1967
Psilamonocolpites medius
  -
Psilamonocolpites medius Van der Hammen 1954
Proxapertites operculatus
  -
Proxapertites operculatus Van der Hammen 1956
Ginkgoopsida
 Ephedrales - Ephedraceae
Ephedripites vanegensis Van der Hammen and Garcia de Mutis 1966 jointfir
Retimonocolpites
  -
Retimonocolpites microreticulatus Van der Hammen and Garcia de Mutis 1966
Monocotyledoneae
 Arecales - Arecaceae
Racemonocolpites facilis González-Guzmán 1967
Mauritiidites franciscoi van Hoeken-Klinkenberg 1964
 Arecales -
Longapertites proxapertitoides Van der Hammen and Garcia de Mutis 1966
"Retimonocolpites regio" = Arecipites regio Jaramillo and Dilcher 2001
Pteridopsida
  -
"Psilamonoletes tibui" = Laevigatosporites tibuensis
"Psilamonoletes tibui" = Laevigatosporites tibuensis Jaramillo and Dilcher 2001
Psilatriletes guaduensis
  -
Psilatriletes guaduensis Van der Hammen 1954
Magnoliopsida
  -
Echimonocolpites densus González-Guzmán 1967
Scabrastephanocolpites lisamae Van der Hammen and Garcia de Mutis 1966
Scabrastephanocolpites vanegensis Van der Hammen and Garcia de Mutis 1966
Retitricolporites saskiae González-Guzmán 1967
Retitricolporites annaeoides Van der Hammen and Garcia de Mutis 1966
 Proteales -
Retidiporites magdalenensis Van der Hammen and Garcia de Mutis 1966
Magnotetradites magnus
  -
Magnotetradites magnus Van der Hammen and Garcia de Mutis 1966
Retitriporites
  -
Retitriporites typicus González-Guzmán 1967