Shales and Limestones at Mechra Ben Abbou (Devonian of Morocco)

Where: Morocco (32.7° N, 7.8° W: paleocoordinates 61.9° S, 19.8° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Koudiat ed Diab Formation, Lochkovian (419.2 - 410.8 Ma)

• "The species recorded from this area suggest a possible Gedinne age..." PJW: should by Koudiat ed Diab formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

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

Size class: macrofossils

Collection methods: See coll. 27127 for stratigraphically higher collection in same general area.

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 27467: authorized by Michael Foote, entered by Michael Foote on 06.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Proetida - Proetidae
"Proetus (Coniproetus) foucaldi" = Coniproetus foucauldi
"Proetus (Coniproetus) foucaldi" = Coniproetus foucauldi Alberti 1967 trilobite
 Phacopida - Homalonotidae
"Homalonotus cf. roemeri" = Digonus roemeri
"Homalonotus cf. roemeri" = Digonus roemeri de Koninck 1876 trilobite
 Phacopida - Acastidae
Acastella sp. Reed 1925 trilobite
Rhynchonellata
 Spiriferida - Spiriferidae
 Athyridida - Athyrididae
 Orthida - Dalmanellidae
"Orthis cf. elegantula" = Resserella elegantula
"Orthis cf. elegantula" = Resserella elegantula Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
"Rhynchonella cf. ancillans" = Ancillotoechia ancillans
"Rhynchonella cf. ancillans" = Ancillotoechia ancillans Barrande 1879
 Rhynchonellida - Hebetoechiidae
"Rhynchonella tarda" = Lanceomyonia tarda
"Rhynchonella tarda" = Lanceomyonia tarda Barrande 1847