Tiounkeline Shale, Djebel Azaz Section, Collection 4 and Higher (Silurian of Algeria)

Where: Algeria (26.1° N, 3.5° E: paleocoordinates 76.9° S, 60.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Tiounkeline Shale Formation, Ludlow (427.4 - 423.0 Ma)

• Fourth of four graptolite collections in ascending stratigraphic order; also a bivalve stratigraphically above the graptolite. Graptolite indicates Early Ludlow age.

• member-level stratigraphic resolution

Environment/lithology: offshore; shale

• SEP environmental call based on scanty given information and geological context provided by source ref (PDBD 7455)
• "shale"

Primary reference: W. B. N. Berry and A. J. Boucot. 1973. Correlation of the African Silurian rocks. Geological Society of America Special Paper 147:1-83 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 27471: authorized by Michael Foote, entered by Michael Foote on 06.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
Monograptus fritschi
Bivalvia
 Cyrtodontida - Antipleuridae
Paracardium sp.
Paracardium sp. Barrande 1881 clam