Also known as Oasis Member, Marmarica Formation, Siwa Oasis
Where: Egypt (29.2° N, 25.5° E: paleocoordinates 28.5° N, 24.7° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Oasis Member (Marmarica Formation), Middle Miocene (16.0 - 11.6 Ma)
• The Miocene succession fo the Siwa Depression can be subdivided into three units. The lowermost unit is the Oasis Member and consists of alternating carbonate beds and greenish, bluish, and blackish shales and marls. The carbonates are made up of cross-bedded coquina and other organoclastic limestones. Cross-bedding shows paleocurrent directions predominantly to the north and northwest. The Marmarica Formation is assigned a middle Miocene age and has a thickness of 78 m (256 ft).
• member-level stratigraphic resolution
Environment/lithology: shelly/skeletal limestone and black, green, blue shale
Size class: macrofossils
Collection methods: Collection data based on review of previously published literature.
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 42060: authorized by Austin Hendy, entered by Austin Hendy on 23.07.2004, edited by Mark Uhen
Creative Commons license: CC BY (attribution)