Where: Libya (29.7° N, 17.3° E: paleocoordinates 26.7° N, 14.5° E)

• coordinate stated in text

• local area-level geographic resolution

When: Um ad Dahiv Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• The formation conformably overlies the Upper Eocene Qarat al Jifah Member of the Wadi Tamet Formation and is overlain by the Greir Bu Hascisc Formation. It consists of reefal, massive, bedded dolomites with common glauconite, peloids and bioclasts. Moldic porosity is up to 30%. The thickness of the formation is 10-23 m (33-75 ft). The upper part is composed on gypsiferous silty clays. Carbonate nodules are common in the bottom of the unit.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; glauconitic, peloidal, shelly/skeletal limestone and glauconitic, peloidal dolomite

Size classes: macrofossils, microfossils

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 42145: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2004

Creative Commons license: CC BY (attribution)