Zeimlet Formation, El Kseib-Erg Djemel Section (Devonian of Algeria)

Where: Algeria (29.5° N, 2.2° W: paleocoordinates 66.2° S, 33.5° 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 and, apparently, calcareous sandstone lenses.

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 27473: 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
Rhynchonellata
 Spiriferida - Delthyrididae
Howellella aff. inchoans, Howellella mercuri
 Rhynchonellida - Hebetoechiidae
Lanceomyonia borealiformis
 Orthida - Rhipidomellidae
Rhipidomella ex gr. hamoni
Rhipidomella ex gr. hamoni
"Rhipidomella of the R. hamoni group"
Trilobita
 Proetida - Proetidae
"Warburgella rugulosa" = Warburgella (Rugulites) rugulosa
"Warburgella rugulosa" = Warburgella (Rugulites) rugulosa Alth 1874 trilobite
 Phacopida - Homalonotidae
Burmeisteria (Digonus) zemmourensis, Burmeisteria (Burmeisteria) sp., cf. Digonus rudesdorfensis, Homalonotus cf. armatus, Homalonotus roemeri, Parahomalonotus sp.
Burmeisteria (Burmeisteria) sp. Salter 1865 trilobite
Homalonotus cf. armatus trilobite
"Homalonotus of the H. armatus type"
Parahomalonotus sp. Reed 1918 trilobite
 Phacopida - Acastidae
Acaste spinosa, Acastella granulosa, Acastella jacquemonti
Acaste spinosa trilobite
Anthozoa
 Favositida - Micheliniidae
cf. Pleurodictyum sp.
cf. Pleurodictyum sp. Goldfuss 1829 tabulate coral