Shale in the Region of Tizi N'Tichka and Adrar N'Dgout (Pridoli/Gedinne Part) (Silurian of Morocco)

Where: Morocco (31.0° N, 7.0° W: paleocoordinates 75.8° S, 27.3° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Wenlock (433.4 - 427.4 Ma)

• Authors base age call on contained fauna and stratigraphic superposition. Age of entire unit is Late Llandovery at base to Gedinne at top.

• formation-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

• Some 300km N of Pridoli shoreline, according to paleogeographic map of ref. 7455.
• "limestones and shales interbedded"

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 27410: authorized by Michael Foote, entered by Michael Foote on 05.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Phacopidae
"Phacops miser" = Denckmannites miser Barrande 1852 trilobite
 Phacopida - Cheiruridae
"Cheirurus sternbergi" = Crotalocephalus sternbergi
"Cheirurus sternbergi" = Crotalocephalus sternbergi Boeck 1827 trilobite
Bivalvia
 Cyrtodontida - Antipleuridae
Rhynchonellata
 Spiriferida - Spiriferidae
Lophophorata
 Tentaculitida - Tentaculitidae