Ghazalat-1 well, 5b (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: Abu Roash Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

Environment/lithology: transition zone or lower shoreface; lithified, calcareous limestone and lithified, calcareous shale

• Represented by the lower part, which could be attributed to the G, F and E Members. Generally, it consists of limestone, shaly limestone and shale interbeds. The age of the Abu Roash "G" Member is late Cenomanian (Hantar, 1990; E1-Shamma and Arafa, 1992; Schrank and Ibrahim, 1995), while the F and E Members are of Turonian age (Hantar, 1990).

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 142208: authorized by Carlos Jaramillo, entered by Gabriela Doria on 07.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Nyssapollenites
  -
Psilamonocolpites
  -
Psilamonocolpites spp. Van der Hammen and Garcia de Mutis 1966
Pinopsida
 Pinales - Araucariaceae
 Pinales - Cheirolepidiaceae
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
Tetracolpites
  -
Tetracolpites spp. Srivastava 1967
Retimonocolpites
  -
Afropollis
  -
Afropollis kahramanensis Ibrahim and Schrank 1995
Cycadopsida
 Cycadales -
Eucommiidites spp. Erdtman 1948 cycads
 Gnetales -
Equisetosporites ambiguus Hedlund 1966 cycads
Cycadopites
  -
Concavisporites
  -
Concavisporites spp. Delcourt and Sprumont 1955
Pteridopsida
  -
Cyathidites minor Couper 1953
 Schizaeales - Schizaeaceae
Biretisporites potoniaei Delcourt and Sprumont 1955
 Gleicheniales - Matoniaceae
  -
Deltoidospora diaphana Wilson and Webster 1946
Lycopsida
  -
Magnoliopsida
  -
Dicotyledonae
 Euphorbiales - Dilleniidae
Magnoliopsida
 Magnoliales - Chloranthaceae
 Magnoliales - Trimeniaceae
  -
Rousea georgensis Dettmann 1973
Rousea delicipollis Srivastava 1977
Tricolpites spp. Potonié 1960
 Nymphaeales - Nymphaeaceae
Pinidae
 Cupressales - Pinidae