Los Mangos 31-2720': Aptian - Albian, Colombia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Inaperturapollenites (informal scabratus) informal 50um
9 specimens
Inaperturapollenites (informal scabratus) informal 50umthickwall
16 specimens
Rugulatriletes informal crassorugulatus
1 specimen
Angiospermae - Alismatales
Pennipollis reticulatus Friis et al. 2010
1 specimen
Angiospermae
Afropollis jardinus Doyle et al. 1982
2 specimens
Coniferales - Podocarpaceae
Callialasporites trilobatus (Balme 1957)
3 specimens
original and current combination Tsugaepollenites trilobatus
Callialasporites dampieri (Balme 1957)
13 specimens
original and current combination Zonallapollenites dampieri
unclassified
Echitriletes informal dispersiechinus
1 specimen
Echitriletes informal nanoechinus
3 specimens
Equisetopsida - Cheirolepidiaceae
Classopollis cf. intrareticulatus Volkheimer 1972
20 specimens
unclassified
Verrutriletes informal reticulatus
1 specimen
Scabratriletes spp.
2 specimens
Cycadopsida - Cycadales
Eucommiidites informal psilatus
1 specimen
unclassified
Concavissimisporites (informal irregularis) kyrtomatus
9 specimens
Polypodiopsida
Verrucosisporites rotundus Singh 1964
8 specimens
Polypodiopsida - Schizaeales - Schizaeaceae
Klukisporites foveolatus Pocock 1965
2 specimens
Cicatricosisporites hallei Delcourt and Sprumont 1955
4 specimens
Polypodiopsida - Osmundaceae
Baculatisporites comaumensis Potonie 1953
5 specimens
unclassified
Psilatriletes informal betweentwentyfiveandfifty
114 specimens
Psilatriletes informal morethanfifty
12 specimens
Psilatriletes informal twentyfive
78 specimens
Pteridopsida
Echinatisporis varispinosus Srivastava 1975
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:829 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:139376
Authorizer:C. Jaramillo Enterer:G. Doria
Research group:paleobotany
Created:2013-02-11 12:29:56 Last modified:2013-02-10 19:29:56
Access level:the public Released:2013-02-11 12:29:56
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]