Ostracode-Orthoceratite Limestone at Beni Afeur, Petite Kabylie, NE Algeria (Silurian of Algeria)

Where: Algeria (36.3° N, 5.0° E: paleocoordinates 69.8° S, 52.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Gorstian (427.4 - 425.6 Ma)

• Lower Budnanian (e-Beta-1), based on contained fauna.

• formation-level stratigraphic resolution

Environment/lithology: offshore; shelly/skeletal limestone

• Tell Atlas area. Limestone sits atop Llandovery and Wenlock sequence of graptolitic(?) shales and shales with limestone lenses. Faunas and facies reminiscent of those in Morocco and Bohemia.

•SEP environmental call based on given info and regional context; difficult to asses on given info

• "Red-speckled orthoceratitic-ostracodal limestone" [Rotfleckigen Orthoceren-Ostraocoden-Kalke]

Primary reference: G. K. B. Alberti. 1980. Zur lithofaziellen Entwicklung, Fauna (Trilobiten, Tentaculiten) und Biostratigraphie des Palaeozoikums (Silur-Devon) von Beni Afeur (Kleine Kabylei, Tell-Atlas, Algerien). Neues Jahrbuch für Geologie und Paläontologie Monatshefte 1980(5):277-286 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27153: authorized by Michael Foote, entered by Michael Foote on 20.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only trilobites are listed.
Show authors, comments, and common names
Trilobita
 Odontopleurida - Odontopleuridae
Ceratocephala cf. verneuili
 Trinucleida - Raphiophoridae
Raphiophorus rouaulti
 Proetida - Tropidocoryphidae
Decoroproetus cf. quirinus
 Proetida - Proetidae
"Prionopeltis cf. striata" = Phaetonides striatus, "Cornuproetus aff. walliseri" = Interproetus walliseri
"Prionopeltis cf. striata" = Phaetonides striatus Barrande 1846 trilobite
"Cornuproetus aff. walliseri" = Interproetus walliseri Alberti 1967 trilobite
 Proetida - Scharyiidae
Scharyia kabylica n. sp.
Scharyia kabylica n. sp. trilobite
 Proetida - Aulacopleuridae
Harpidella sp.
Harpidella sp. M'Coy 1849 trilobite
 Corynexochida - Styginidae
Kosovopeltis sp.
Kosovopeltis sp. Snajdr 1958 trilobite
 Phacopida - Cheiruridae
Cheirurus (Cheirurus) sp.
Cheirurus (Cheirurus) sp. Beyrich 1845 trilobite
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Cephalopoda
 Orthoceratoidea -
Orthocerida indet.