Zeimlet Formation, Marhouma Section (Devonian of Algeria)

Where: Algeria (30.0° N, 2.1° W: paleocoordinates 65.7° S, 34.0° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Zeimlet Formation, Lochkovian (419.2 - 410.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore; shale and limestone

• SEP environmental call based on given information and, more importantly, interpretation of sections in secondary ref.
• Section of Legrand (1977) (ref. 7519, fig. 2) indicates shale ("argile") with limestone interbeds. Legrand indicates that the formation is more argillaceous here than elsewhere.

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 27474: authorized by Michael Foote, entered by Michael Foote on 06.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Acastidae
Acastella jacquemonti Hollard 1963 trilobite
Pterobranchia
 Graptoloidea - Monograptidae
Monograptus cf. uniformis Pribyl 1940 graptolite
"Monograptus of the M. uniformis type"
 Graptoloidea - Cryptograptidae