Awaynat Wanin type sect., Aouinet Ouenine III Fmn., sample TB902 (Devonian of Libya)

Where: Libya (28.1° N, 13.0° E: paleocoordinates 45.6° S, 30.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Aouinet Ouenine III Formation, Frasnian (382.7 - 372.2 Ma)

• Formation said to be "Frasnian s.l.". Top of formation contains nodular limestone with conodonts that indicate Frasnian-Famennian transition. This sample interpreted as upper Frasnian, on basis of occurrence of Uniconus livnensis and Alternatus sp. in overlying sediments.

• bed-level stratigraphic resolution

Environment/lithology: marine; burrowed, ferruginous sandstone and claystone

• "Characteristic 'flyschoid' textures with load casts, burrow casts, microripples, convolute laminations and common Bifungites reflect a deeper prodeltaic to shelf environment."
• Formation as a whole: "sandstone beds interbedded with siltstones and claystone levels...about 60 m thick" This sample "occurs in a ferruginous sandstone" See also geology comments.

Collection methods: Focus of monograph is brachiopods and bivalves, but other elements are sometimes mentioned in passing.

Primary reference: M. Mergl and D. Massa. 1992. Devonian and Lower Carboniferous brachiopods and bivalves from western Libya. Biostratigraphie du Paleozoique 12:1-115 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35621: authorized by Michael Foote, entered by Michael Foote on 31.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida -
Productida indet. Sarycheva and Sokolskaya 1959
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
 Terebratulida - Rhipidiothyrididae
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer "sp. B" Nalivkin 1924
 Rhynchonellida - Trigonirhynchiidae