Los Mangos 31-2868'7'': Aptian - Albian, Colombia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Inaperturapollenites (informal scabratus) informal 50um
4 specimens
Spore spp.
10 specimens
Scabramonocolpites informal circularis
1 specimen
Lycopodiopsida - Lycopodiales
Retitriletes spp.
1 specimen
unclassified
Psilatriletes informal betweentwentyfiveandfifty
145 specimens
Psilatriletes informal morethanfifty
45 specimens
Psilatriletes informal twentyfive
52 specimens
Polypodiopsida - Gleicheniaceae
Gleicheniidites senonicus Ross 1949
1 specimen
Polypodiopsida - Schizaeales - Schizaeaceae
Cicatricosisporites spp.
11 specimens
unclassified
Brenneripollis sp. Juhász and Goczan 1985
1 specimen
Chomotriletes almegrensis Pocock 1962
1 specimen
see common names

Geography
Country:Colombia State/province:Huila
Coordinates: 2.6° North, 75.5° West (view map)
Paleocoordinates:1.0° South, 45.3° West
Basis of coordinate:stated in text
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Key time interval:Aptian - Albian
Age range of interval:121.40000 - 100.50000 m.y. ago
Stratigraphy
Formation:Ocal
Local section:Ocal Local bed:874 m
Local order:top to bottom
Lithology and environment
Primary lithology: lithified "shale"
Secondary lithology:planar lamination,gray lithified sandstone
Lithology description: 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).
Environment:interdistributary bay
Geology comments: 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).
Taphonomy
Modes of preservation:soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:core,hydrochloric,hydroflouric
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:139387
Authorizer:C. Jaramillo Enterer:G. Doria
Research group:paleobotany
Created:2013-02-11 12:43:32 Last modified:2013-02-10 19:43:32
Access level:the public Released:2013-02-11 12:43:32
Creative Commons license:CC BY
Reference information

Primary reference:
44814. 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. Cárdenas]