Oued Ali Formation at El Kseib (Probable Late Wenlock Beds) (Silurian of Algeria)

Where: Algeria (29.0° N, 3.0° W: paleocoordinates 78.4° S, 40.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Oued Ali Formation, Wenlock (433.4 - 427.4 Ma)

• Authors base age call on Monograptus flemingii.

• member-level stratigraphic resolution

Environment/lithology: offshore; shale

• Formation is between the Ougarta Group sandstones below and the Zeimlet Formation sandstones above.

•SEP environmental call based on scanty given information and geological context provided by source ref (PDBD 7455). Note that this unit is mud dominated but contains fairly abundant limestone beds.

• "graptolitic 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 27198: authorized by Michael Foote, entered by Michael Foote on 22.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Phacopida - Dalmanitidae
Dalmanitidae indet.
Dalmanitidae indet. Vogdes 1890 trilobite
 Phacopida - Homalonotidae
Burmeisteria kseibi
 Odontopleurida -
Odontopleurida indet.
Odontopleurida indet. Whittington 1959 trilobite
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Pterobranchia
 Graptoloidea - Cyrtograptidae
Cyrtograptus perneri
 Graptoloidea - Monograptidae
Monograptus flemingii
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily