Where: West Kurdufan, Sudan (11.0° N, 27.7° E: paleocoordinates 9.5° S, 17.2° E)
• coordinate based on nearby landmark
When: Zone II (Barremian-Aptian) pollen zone, Bentiu Formation, Barremian to Barremian (129.4 - 113.0 Ma)
• Definition. The top of this zone is indicated by the last
•occurrence of Pilosisporites trichopapillosus and the
•occurrence of Afropollis zonatus, Leptolepidites psarosus,
•Concavissimisporites punctatus, Araucariacites
•australis, Cicatricosisporites spp. and Classopollis spp.
•Afropollis cf. operculatus and Concavissimisporites cf.
•variverrucatus are recorded from equivalent strata of
•the second study well, Khx-1.
Environment/lithology: fluvial-lacustrine; lithified sandstone
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydrochloric, hydroflouric, sieve
Primary reference: 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. Cardenas ]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 145173: authorized by Carlos Jaramillo, entered by Gabriela Doria on 28.05.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Monocolpopollenites | |
Monocolpopollenites sp. Pflug and Thomson 1953 | |
Equisetopsida | |
Araucariacites australis Cookson 1947
Classopollis spp. Pflug 1953 | |
Inaperturopollenites spp., "Spheripollenites scabratus" = Sphaeripollenites
Inaperturopollenites spp. Potonié 1966
"Spheripollenites scabratus" = Sphaeripollenites | |
Gnetaceaepollenites | |
Gnetaceaepollenites spp. Thiergart 1938 | |
Angiospermae | |
Afropollis jardinus Doyle et al. 1982 | |
Polypodiopsida | |
Crybelosporites cf. pannuceus Srivastava 1977 | |
Verrucosisporites rotundus Singh 1964 | |
| |
Microfoveolatosporis | |
Microfoveolatosporis spp. Krutzsch 1959 | |
Pteridopsida | |
Deltoidospora diaphana Wilson and Webster 1946 | |
Pilosisporites trichopapillosus | |
Pilosisporites trichopapillosus Delcourt and Sprumont 1955 | |
Algae | |
Ginkgoopsida | |
Ephedripites spp. Bolkhovitina and Potonié 1958
Ephedripites cf. multicostatus Brenner 1963
Ephedripites jansonii Muller 1968 | |
Cycadopsida | |
Steevesipollenites sinuosus Azema and Boltenhagen 1974 cycads | |
Concavissimisporites | |
Concavissimisporites punctatus Pocock 1964 | |
Gemmatriletes | |
Gemmatriletes sp. Pierce 1961 |