Gabes-Tripoli Basin, Nummulites Bank, offshore Libya (Eocene of Libya)

Where: Libya (33.9° N, 12.6° E: paleocoordinates 25.6° N, 9.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Jdeir Formation (Farwah Group), Ypresian (56.0 - 47.8 Ma)

• Late Ypresian

• group of beds-level stratigraphic resolution

Environment/lithology: sand shoal; lithified packstone and lithified grainstone

• Described as a bank, but probably a foraminiferal shoal
• Nummulites packstone-grainstone bank, max. thickness 180 m, 230 km extension, developed on the Jifarah outer platform, with Orbitolites-Alveolina wackestone/packstone back-bank and Discocyclina-Assilina wackestone/packstone fore-bank facies

Size classes: macrofossils, microfossils

Collection methods: core,

Primary reference: J. M. Anketell and I. Y. Mriheel. 2000. Depositional environment and diagenesis of the Eocene Jdeir Formation, Gabes-Tripoli Basin, western offshore Libya. Journal of Petroleum Geology 23(4):425-447 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 77111: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Echinodermata indet., Mollusca indet.
Mollusca indet. Linnaeus 1758
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Nodosariata
 Polymorphinida - Polymorphinidae
Polymorphinidae indet.
Polymorphinidae indet. d'Orbigny 1839
Foraminifera
 Buliminoidea - Buliminidae
Buliminidae indet.
 Nummulitacea - Discocyclinidae
Discocyclina sp.
 Nummulitacea - Nummulitidae
Nummulites rollandi, Nummulites irregularis, Nummulites distans, Nummulites globulus, Operculina sp.
Nummulites globulus Leymerie 1846
 Rotaliina - Bolivinidae
Bolivinidae indet.
Bolivinidae indet. Glaessner 1937
Tubothalamea
 Miliolida - Miliolidae
Miliolidae indet.
Miliolidae indet. Ehrenberg 1839
 Miliolida - Alveolinidae
Alveolina sp.
 Miliolida - Soritidae
Orbitolites sp., Orbitolites complanatus