Well Azx-1, Muglad Basin, Sample Az-32: Neocomian - Barremian, Sudan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Equisetopsida - Cheirolepidiaceae
Classopollis spp.
Polypodiopsida - Marsileaceae
Crybelosporites cf. pannuceus Srivastava 1977
Polypodiopsida - Schizaeales - Schizaeaceae
Cicatricosisporites mohrioides Delcourt and Sprumont 1955
unclassified
Concavissimisporites punctatus Pocock 1964
Ginkgoopsida - Ephedrales
Ephedripites spp.
Ephedripites jansonii Muller 1968
Dinophyceae - Peridiniales - Peridiniaceae
Holmwoodinium notatum Batten 1985
see common names

Geography
Country:Sudan State/province:South Kurdufan
Coordinates: 11.0° North, 27.7° East (view map)
Paleocoordinates:8.1° South, 16.3° East
Basis of coordinate:based on nearby landmark
Altitude:434 meters
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Key time interval:Neocomian - Barremian
Age range of interval:145.00000 - 121.40000 m.y. ago
Stratigraphy
Formation:Abu Gabra
Local section:Muglad Basin Local bed:2540 m
Local order:top to bottom
Stratigraphic resolution:bed
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:172858
Authorizer:C. Jaramillo Enterer:P. Santamarina
Modifier:P. Santamarina Research group:paleobotany
Created:2015-08-27 10:35:56 Last modified:2015-08-27 13:15:05
Access level:the public Released:2015-08-27 10:35:56
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]