Ghazalat-1 well, 6a (Cretaceous of Egypt)

Where: Western Desert, Egypt (29.0° N, 29.0° E: paleocoordinates 8.7° N, 23.8° E)

• coordinate estimated from map

When: Bahariya Formation, Early/Lower Cenomanian (99.6 - 93.5 Ma)

Environment/lithology: terrestrial; lithified, argillaceous sandstone and lithified, argillaceous shale

• Composed of sandstones and variegated shales, it conformably overlies the Kharita Formation and underlies the Abu Roash Formation. An early Cenomanian age was given to the Bahariya Formation (Schlumberger, 1984; Sultan, 1987; Bassiouni et al., 1992; EI-Shamma and Arafa, 1992; Abdel-Kireem et al., 1993). However, E1-Beialy (1994a,b) assigned a middle-late Albian to early Cenomanian age to the Bahariya Formation in the subsurface of the north Western Desert.

Size class: microfossils

Preservation: soft parts, original sporopollenin

Primary reference: M. I. A. Ibrahim. 1996. Aptian-Turonian palynology of the Ghazalat-1 well (GTX-1), Qattara Depression, Egypt. Review of Palaeobotany and Palynology 94:137-168 [C. Jaramillo/G. Doria/A. Cardenas ]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 142207: authorized by Carlos Jaramillo, entered by Gabriela Doria on 07.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Equisetopsida
 Pinidae - Pinidae
Balmeisporites holodictyus Cookson and Dettmann 1958
 Cupressales - Pinidae
 Pinidae - Pinidae
Nyssapollenites
  -
Psilamonocolpites
  -
Psilamonocolpites spp. Van der Hammen and Garcia de Mutis 1966
Brenneripollis
  -
Sofrepites
  -
Galeacornea causea
  -
Galeacornea causea Stover 1963 elaterate
Concavisporites
  -
Concavisporites spp. Delcourt and Sprumont 1955
Pteridopsida
  -
Deltoidospora diaphana Wilson and Webster 1946
Cyathidites minor Couper 1953
Todisporites major Couper 1953
Todisporites minor Couper 1953
Polypodiopsida
  - Marsileaceae
Crybelosporites pannuceus Srivastava 1977
  - Gleicheniaceae
 Polypodiales - Polypodiidae
Contignisporites sp. Dettmann 1963
 Gleicheniales - Polypodiidae
 Schizaeales - Polypodiidae
  -
Biretisporites potoniaei Delcourt and Sprumont 1955
Murospora
  -
Murospora spp. Somers 1952
Cycadopsida
 Cycadales -
Eucommiidites spp. Erdtman 1948 cycads
Cycadopites
  -
Concavissimisporites
  -
Ginkgoopsida
 Ephedrales -
Ephedripites spp. Bolkhovitina and Potonié 1958
Ephedripites ovalis Müller 1968
Ephedripites irregularis Herngreen 1973
Ephedripites jansonii Muller 1968
Angiospermae
 Malpighiales - Euphorbiaceae
Tricolporopollenites spp. Thomson and Pflug 1953 spurge
  -
"Brenneripollis reticulatus" = Retimonocolpites reticulatus
"Brenneripollis reticulatus" = Retimonocolpites reticulatus Doyle 1975
 Gunnerales -
Tricolpites spp. Couper 1953
 Austrobaileyales - Trimeniaceae
  -
Stellatopollis barghoornii Doyle et al. 1975
Afropollis jardinus Doyle et al. 1982
 Coniferales - Podocarpaceae
Callialasporites trilobatus Balme 1957 podocarp
 Coniferales -
Circulina parva Brenner 1963
Magnoliopsida
  -
 Life -
Perotriletes spp. Reyre 1966