List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Equisetopsida
- Cheirolepidiaceae
|
|||||||
|
Classopollis spp.
|
|||||||
|
Equisetopsida
- Araucariaceae
|
|||||||
|
Araucariacites australis
Cookson 1947
|
|||||||
|
Balmeiopsis limbatus
(Balme 1957)
|
|||||||
| original and current combination Inaperturopollenites limbatus | |||||||
|
unclassified
|
|||||||
|
Gnetaceaepollenites spp.
|
|||||||
|
Algae
|
|||||||
|
Algae indet.
|
|||||||
|
unclassified
|
|||||||
|
Cycadopites sp.
Wodehouse 1933
|
|||||||
|
Cycadopsida
- Gnetales
|
|||||||
|
Steevesipollenites sinuosus
Azema and Boltenhagen 1974
|
|||||||
|
Ginkgoopsida
- Ephedrales
|
|||||||
|
Ephedripites spp.
|
|||||||
|
Ephedripites jansonii
Muller 1968
|
|||||||
|
unclassified
|
|||||||
|
Concavissimisporites punctatus
Pocock 1964
|
|||||||
|
Rouseisporites sp.
Pocock 1962
|
|||||||
|
Marchantiopsida
- Sphaerocarpales
|
|||||||
|
Aequitriradites cf. acusus
Dettmann 1963
|
|||||||
|
Polypodiopsida
- Blechnaceae
|
|||||||
|
Leptolepidites spp.
|
|||||||
|
Polypodiopsida
|
|||||||
|
Verrucosisporites rotundus
Singh 1964
|
|||||||
|
Biretisporites potonie
|
|||||||
|
Polypodiopsida
- Schizaeales
|
|||||||
|
Appendicisporites aegyptiaca
|
|||||||
|
Polypodiopsida
- Schizaeales
- Schizaeaceae
|
|||||||
|
Cicatricosisporites spp.
|
|||||||
|
Cicatricosisporites salardii
Dejax 1985
|
|||||||
|
Pteridopsida
|
|||||||
|
Cyathidites sp.
Couper 1953
|
|||||||
| see common names | |||||||
Geography
| Country: | Sudan | State/province: | West Kurdufan |
| Coordinates: | 11.0° North, 27.7° East (view map) | ||
| Paleocoordinates: | 10.2° South, 17.8° East | ||
| Basis of coordinate: | based on nearby landmark |
Stratigraphy
| Formation: | Bentiu | ||||
| Local section: | Muglad Basin | Local bed: | 1936 m | ||
| Local order: | top to bottom | ||||
| Stratigraphy comments: Reference section. Azx-1, interval 1595–1675 m (samples
Az 05–Az 08). Definition. The top of this zone is indicated by the highest occurrence of Verrucosisporites rotundus, Stellatopollis densiornatus and the presence of Aequitriradites cf. acusus, Retimonocolpites variplicatus, Gnetaceaepollenites diversus, Gnetaceaepollenites sp. and Classopollis spp. Afropollis jardinus, Appendicisporis aegyptiaca and Steevesipollenites sinuosus occur just below the top of this zone. | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Lithology description: The successions in several deep wells in the Muglad Basin consist of thick Lower Cretaceous to Paleogene–Neogene strata of claystones, fluvio-lacustrine sandstones and siltstones (Schull 1988). Based on seismic and log interpretations, twelve formations are distinguished in the Muglad Basin of which thick beds of shales and claystones interbedded with fine sandstones and siltstones constitute the Abu Gabra Formation (Neocomian–Aptian), the main source rock in the Muglad Basin. The reservoir rock is the thick sandstone sequence of the Bentiu Formation (Aptian–Cenomanian). | |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Modes of preservation: | soft parts,original sporopollenin |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection excludes: | all microfossils |
| Collection methods: | chemical,hydrochloric,hydroflouric,sieve |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 145164 | ||
| Authorizer: | C. Jaramillo | Enterer: | G. Doria | Research group: | paleobotany |
| Created: | 2013-05-28 04:31:54 | Last modified: | 2013-05-27 13:31:54 |
| Access level: | the public | Released: | 2013-05-28 04:31:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 46944. | A. A. M. Eisawi, A. B. Ibrahim, O. B. A. Rahim and E. Schrank. 2012. Palynozonation of the Cretaceous to Lower Paleogene Strata of the Muglad Basin, Sudan. Palynology 36(2):191-207 [C. Jaramillo/G. Doria/A. Cárdenas] |