Where: Western Desert, Egypt (31.0° N, 28.0° E: paleocoordinates 10.8° N, 23.3° E)
• coordinate estimated from map
When: Abu Roash "G" Member, Late/Upper Cenomanian (99.6 - 93.5 Ma)
Environment/lithology: open shallow subtidal; lithified, argillaceous shale and lithified, argillaceous sandstone
•Abu Roash. Dated as early to middle Cenomanian (Hantar, 1990; Schrank and Ibrahim, 1995; Ibrahim,
•2002), about 170 m (560 ft) of the Bahariya Formation is encountered in the Razzak #7 well.
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydrochloric, hydroflouric, sieve
Primary reference: M. Zobaa, C. Sanchez-Botero, C. Browne, F. E. Oboh-Ikuenobe, and M. I. Ibrahim. 2008. Kerogen and palynomorph analyses of the mid-Cretaceous Bahariya Formation and Abu Roash “G” Member, North Western Desert, Egypt. Gulf Coast Association of Geological Societies Transactions 58:933-943 [C. Jaramillo/G. Doria/A. Cardenas ]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 145122: authorized by Carlos Jaramillo, entered by Gabriela Doria on 26.05.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cycadopsida | |
Alaticolpites limai Regali et al. 1975 elaterate | |
Eucommiidites troedsonii cycads | |
Ginkgoopsida | |
Ephedripites spp. Bolkhovitina and Potonié 1958 | |
Polypodiopsida | |
Cicatricosisporites orbiculatus Singh 1964 | |
Crybelosporites pannuceus Srivastava 1977 | |
Pteridopsida | |
Deltoidospora minor Pocock 1970 | |
Equisetopsida | |
"Spheripollenites psilatus" = Sphaeripollenites
"Spheripollenites psilatus" = Sphaeripollenites | |
Classopollis torosus Burger 1965
Araucariacites australis Cookson 1947 | |
Angiospermae | |
Afropollis jardinus Doyle et al. 1982
Retimonocolpites variplicatus Schrank and Mahmoud 1998 | |
Dinophyceae | |
Subtilisphaera spp. Jain and Millepied 1971 | |
Spiniferites ramosus Lentin and Williams 1973 | |
Florentinia sp., Florentinia cooksioniae, Oligosphaeridium complex, Coronifera oceanica, Kallosphaeridium sp.
Florentinia sp. Davey and Verdier 1973
Oligosphaeridium complex Davey and Williams 1966
Coronifera oceanica Cookson and Eisenack 1958
Kallosphaeridium sp. De Coninck 1969 |