Wadi Ash Shaykh - Tmed el Ksour Member, Zallha Formation (Eocene of Libya)

Where: Libya (30.3° N, 13.3° E: paleocoordinates 26.4° N, 10.0° E)

• coordinate stated in text

• local area-level geographic resolution

When: Tmed el Ksour Member (Zallah Formation), Priabonian (38.0 - 33.9 Ma)

• The name Zallah Formation was proposed to include the units Tmed El Ksour and Graret ek Jifa members of the Wadi Tamet Formation. The Tmed el Ksour Mbr is a persistent unit and has a uniform lithology along the western margin of the Sirte Basin. It is composed predominantly of chalky limestones to chalky dolomites with chert beds, and celestite and anhydrite layers. The member is 27-40 m (89-131 ft) in the type area. It is assigned a Priabonian age on the basis of paleotologic evidence.

• member-level stratigraphic resolution

Environment/lithology: lithified, cherty/siliceous limestone and cherty/siliceous dolomite

• No paleoenvironmental data provided.
• Chalky limestones to chalky dolomites with chert beds, and celestite and anhydrite layers.

Size class: macrofossils

Collection methods: No detailed collection data reported.

Primary reference: E. E. Tawadros. 2001. Geology of Egypt and Libya 1-468 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 42136: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collection based on taxa listed in text as typical of formation. Includes only mollusca.
unclassified
  -
Foraminifera
 Globigerinina - Hedbergellidae
Globothalamea
 Rotaliida - Gavelinellidae
Foraminifera
 Globigerinoidea - Globigerinidae
Anthozoa
 Scleractinia - Placophylliidae
Gastropoda
 Sorbeoconcha - Strombidae
"Rostellaria (Amplogladius) turgida" = Tibia, Rostellaria (Hippocerne) columbaria
"Rostellaria (Amplogladius) turgida" = Tibia true conch
Rostellaria (Hippocerne) columbaria Lamarck 1803 true conch
 Sorbeoconcha - Cypraeidae
"Gisortia (Vicetia) stefanini" = Gisortia (Vicetia) stefaninii
"Gisortia (Vicetia) stefanini" = Gisortia (Vicetia) stefaninii Negri 1934 cowry
Bivalvia
 Ostreida - Malleidae