Brachiopod Sst. Marker, Ashkidah Fm., Ash Shati area, N. flank of Murzuk Basin (Carboniferous of Libya)

Where: Libya (27.5° N, 14.3° E: paleocoordinates 37.0° S, 17.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Ashkidah Formation, Tournaisian (358.9 - 346.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; sandstone and claystone

• Mergl and Massa consider the environment similar to that of the Tarut Formation (shallow, lagoonal, BA 1).
• Formation as a whole: "...mostly consists of fine-grained sandstone, siltstone and claystone alternating in various proportions. In the central and eastern parts of Wadi ash Shati, the ore-bearing member "B" developed amidst the Fm., dividing it into a lower, a middle, and an upper part...Fossil fauna is very scarce in the bulk of the Fm.."

Primary reference: V. Havlicek and P. Rohlich. 1987. Devonian and Carboniferous brachiopods from the northern flank of the Murzug Basin (Libya). Sbornik Geologickych Ved: Paleontologie 28:117-177 [A. Miller/J. Sessa/J. Sessa]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 36829: authorized by Michael Foote, entered by Michael Foote on 17.02.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Goniatitida - Anthracoceratidae
Anthracoceras sp. Frech 1899 ammonite
 Monobathrida -
Platyhexacrinus sp. Schmidt 1913 Sea lily
 Productida - Productidae
 Productida - Anopliidae
 Orthotetida - Schuchertellidae
 Athyridida - Athyrididae
 Spiriferinida - Syringothyrididae
 Spiriferida - Spiriferidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Stenoscismatidae
 Orthida - Rhipidomellidae