Los Mangos 31-2642' 11": Albian, Colombia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Camarazonosporites insignis
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1 specimen | ||||||
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Inaperturapollenites (informal scabratus) informal 50um
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15 specimens | ||||||
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Microfoveolatosporis skottsbergii
Srivastava 1971
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1 specimen | ||||||
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Psilatriletes informal betweentwentyfiveandfifty
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147 specimens | ||||||
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Psilatriletes informal morethanfifty
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5 specimens | ||||||
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Polypodiopsida
- Schizaeales
- Schizaeaceae
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Cicatricosisporites informal pseudodorogensis
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1 specimen | ||||||
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Cicatricosisporites hallei
Delcourt and Sprumont 1955
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18 specimens | ||||||
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Klukisporites foveolatus
Pocock 1965
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4 specimens | ||||||
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Polypodiopsida
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Verrucosisporites rotundus
Singh 1964
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8 specimens | ||||||
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unclassified
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Echitriletes informal dispersiechinus
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1 specimen | ||||||
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Echitriletes informal nanoechinus
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1 specimen | ||||||
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Equisetopsida
- Araucariaceae
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Araucariacites australis
Cookson 1947
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27 specimens | ||||||
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Equisetopsida
- Cheirolepidiaceae
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Classopollis cf. intrareticulatus
Volkheimer 1972
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52 specimens | ||||||
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Classopollis classoides
Pflug 1953
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1 specimen | ||||||
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unclassified
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Phimopollenites cf. pseudocheros
Srivastava 1975
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1 specimen | ||||||
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Coniferales
- Podocarpaceae
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Callialasporites dampieri
(Balme 1957)
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10 specimens | ||||||
| original and current combination Zonallapollenites dampieri | |||||||
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Angiospermae
- Gunnerales
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Tricolpites informal amplocolpatus
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2 specimens | ||||||
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Angiospermae
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Afropollis jardinus
Doyle et al. 1982
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2 specimens | ||||||
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unclassified
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Concavissimisporites (informal irregularis) kyrtomatus
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11 specimens | ||||||
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Ginkgoopsida
- Ephedrales
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Equisetosporites informal medius
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2 specimens | ||||||
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unclassified
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Chomotriletes almegrensis
Pocock 1962
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1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | Colombia | State/province: | Huila |
| Coordinates: | 2.6° North, 75.5° West (view map) | ||
| Paleocoordinates: | 2.9° South, 47.4° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Albian | ||
| Age range of interval: | 113.00000 - 100.50000 m.y. ago |
Lithology and environment
| Primary lithology: | lithified sandstone |
| Secondary lithology: | planar lamination,gray lithified "shale" |
| Environment: | estuary/bay |
| Geology comments: The Caballos Formation (highest in the sequence) is predominantly sandy, interbedded with dark gray shales and thin coal laminations interpreted as accumulating in estuarine deposits ( Florez and Carrillo, 1993 ). | |
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: | 139367 | ||
| Authorizer: | C. Jaramillo | Enterer: | G. Doria | Research group: | paleobotany |
| Created: | 2013-02-11 12:20:07 | Last modified: | 2013-02-10 19:20:07 |
| Access level: | the public | Released: | 2013-02-11 12:20:07 |
| 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] |