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
  -
Ostracoda
 Palaeocopida -
Circulina parva Brenner 1963 ostracod
Nyssapollenites
  -
Psilamonocolpites
  -
Psilamonocolpites spp. Van der Hammen and Garcia de Mutis 1966
Brenneripollis
  -
Pinopsida
 Pinales - Araucariaceae
Balmeisporites holodictyus Cookson and Dettmann 1958
 Pinales - Cheirolepidiaceae
 Pinales -
Ginkgoopsida
 Ephedrales - Ephedraceae
Ephedripites spp. Bolkhovitina and Potonié 1958 jointfir
Ephedripites irregularis Herngreen 1973 jointfir
Ephedripites jansonii Muller 1968 jointfir
Ephedripites ovalis Müller 1968 jointfir
Retimonocolpites
  -
"Brenneripollis reticulatus" = Retimonocolpites reticulatus
"Brenneripollis reticulatus" = Retimonocolpites reticulatus Doyle 1975
Afropollis jardinus
  -
Afropollis jardinus Doyle et al. 1982
Monocotyledoneae
  -
Stellatopollis barghoornii Doyle et al. 1975
Cycadopsida
 Cycadales -
Eucommiidites spp. Erdtman 1948 cycads
Cycadopites
  -
Concavisporites
  -
Concavisporites spp. Delcourt and Sprumont 1955
Murospora
  -
Murospora spp. Somers 1952
Pteridopsida
  -
 Salviniales - Marsileaceae
Crybelosporites pannuceus Srivastava 1977
 Schizaeales - Schizaeaceae
 Gleicheniales - Matoniaceae
 Gleicheniales - Gleicheniaceae
 Polypodiales - Pteridaceae
Contignisporites sp. Dettmann 1963
  -
Deltoidospora diaphana Wilson and Webster 1946
Magnoliopsida
  -
Dicotyledonae
 Euphorbiales - Dilleniidae
Magnoliopsida
 Magnoliales - Trimeniaceae
  -
Tricolpites spp. Potonié 1960
 Gymnospermophyta -
Galeacornea causea Stover 1963 elaterate
Perotriletes
  -
Perotriletes spp. Reyre 1966
Pinidae
 Cupressales - Pinidae