Where: West Kurdufan, Sudan (11.0° N, 27.7° E: paleocoordinates 10.2° S, 17.8° E)
• coordinate based on nearby landmark
When: Zone III (Apt.-Alb.) pollen zone, Bentiu Formation, Aptian to Aptian (125.0 - 100.5 Ma)
• 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.
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 145162: authorized by Carlos Jaramillo, entered by Gabriela Doria on 28.05.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Polypodiopsida | |
Crybelosporites cf. pannuceus Srivastava 1977 | |
Cicatricosisporites spp. Potonie and Gelletich 1933
Cicatricosisporites mohrioides Delcourt and Sprumont 1955 | |
Leptolepidites spp. Couper 1953 | |
Pteridopsida | |
Cyathidites sp. Couper 1953
Matonisporites sp. Couper 1958 | |
Marchantiopsida | |
Aequitriradites cf. acusus Dettmann 1963 | |
Algae | |
Ginkgoopsida | |
Ephedripites spp. Bolkhovitina and Potonié 1958 | |
Lycopodiopsida | |
Retitriletes sp. Pierce 1961 clubmoss | |
Equisetopsida | |
Inaperturopollenites spp. Potonié 1966 | |
Classopollis spp. Pflug 1953 | |
Monocolpopollenites | |
Monocolpopollenites sp. Pflug and Thomson 1953 | |
Angiospermae | |
Afropollis jardinus Doyle et al. 1982
Afropollis zonatus Doyle et al. 1982 |