Los Mangos 31-2887': Aptian - Albian, Colombia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Araucariacidites guianensis
4 specimens
Inaperturapollenites (informal scabratus) informal 50um
1 specimen
Spore spp.
1 specimen
Equisetopsida - Cheirolepidiaceae
Classopollis cf. intrareticulatus Volkheimer 1972
74 specimens
unclassified
Schrankipollis cf. mawhoubensis Doyle et al. 1990
17 specimens
Retipollenites informal afropollinicus
54 specimens
Retipollenites spp.
1 specimen
Microreticulatisporites informal medioreticulatus
6 specimens
Polypodiopsida - Gleicheniaceae
Gleicheniidites senonicus Ross 1949
9 specimens
Polypodiopsida - Schizaeales - Schizaeaceae
Klukisporites foveolatus Pocock 1965
1 specimen
Cicatricosisporites spp.
1 specimen
unclassified
Psilatriletes informal betweentwentyfiveandfifty
78 specimens
Psilatriletes informal morethanfifty
2 specimens
Psilatriletes informal twentyfive
22 specimens
Cycadopsida - Gnetales
Steevesipollenites cupuliformis Azema and Boltenhagen 1974
7 specimens
Ginkgoopsida - Ephedrales
Equisetosporites cf. albertensis Singh 1964
3 specimens
Angiospermae - Alismatales
Pennipollis reticulatus Friis et al. 2010
1 specimen
Coniferales - Podocarpaceae
Callialasporites dampieri (Balme 1957)
12 specimens
original and current combination Zonallapollenites dampieri
unclassified
Gabonisporites vigourouxi
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:125.00000 - 100.50000 m.y. ago
Stratigraphy
Formation:Ocal
Local section:Ocal Local bed:880 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:139389
Authorizer:C. Jaramillo Enterer:G. Doria
Modifier:G. Doria Research group:paleobotany
Created:2013-02-11 12:45:52 Last modified:2013-02-10 19:55:13
Access level:the public Released:2013-02-11 12:45:52
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]