Brown Argillaceous Limestone with Foordites occultus at Hamar Laghdad (Devonian of Morocco)

Where: Morocco (31.4° N, 4.1° W: paleocoordinates 47.6° S, 20.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Eifelian (393.3 - 387.7 Ma)

• Upper Eifelian

• formation-level stratigraphic resolution

Environment/lithology: marine; argillaceous limestone

• "Brown argillaceous limestone (Schlammkalke)"

Primary reference: G. K. B. Alberti. 1969. Trilobiten des juengeren Siluriums sowie des Unter- und Mitteldevons. I. Mit Beitraegen zur Silur-Devon-Stratigraphie einiger Gebiete Marokkos und Oberfrankens. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 520:1-692 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27124: authorized by Michael Foote, entered by Michael Foote on 18.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus is on trilobites. Other forms occasionally mentioned.
Show authors, comments, and common names
Trilobita
 Proetida - Tropidocoryphidae
Eremiproetus dufresnoyi, "Cornuproetus (Tafilaltaspis) creber" = Tafilaltaspis creber
Eremiproetus dufresnoyi Hawle and Corda 1847 trilobite
"Cornuproetus (Tafilaltaspis) creber" = Tafilaltaspis creber Alberti 1966 trilobite
 Proetida - Proetidae
"Cornuproetus (Piriproetus) amblyops" = Piriproetus (Piriproetoides) amblyops, "Cornuproetus (Proetopeltis) waldschmidti" = Ignoproetus waldschmidti, "Cornuproetus (Proetopeltis) neglectus" = Proetopeltis (Proetopeltis) neglecta
"Cornuproetus (Piriproetus) amblyops" = Piriproetus (Piriproetoides) amblyops Erben 1952 trilobite
"Cornuproetus (Proetopeltis) waldschmidti" = Ignoproetus waldschmidti Novak 1890 trilobite
"Cornuproetus (Proetopeltis) neglectus" = Proetopeltis (Proetopeltis) neglecta Barrande 1852 trilobite
 Proetida - Aulacopleuridae
Cyphaspides "sp. A", "Aulacopleura (Paraaulacopleura) beyrichi" = Aulacopleura beyrichi
Cyphaspides "sp. A" Novak 1890 trilobite
"Aulacopleura (Paraaulacopleura) beyrichi" = Aulacopleura beyrichi Novák 1890 trilobite
 Corynexochida - Styginidae
"Thysanopeltis ex gr. speciosum" = Thysanopeltis speciosa
"Thysanopeltis ex gr. speciosum" = Thysanopeltis speciosa Hawle and Corda 1847 trilobite
 Odontopleurida - Odontopleuridae
Leonaspis pigra, Leonaspis horrida
Leonaspis pigra trilobite
 Phacopida - Acastidae
Asteropyge sp., ? Treveropyge "sp. B"
Asteropyge sp. Hawle and Corda 1847 trilobite
? Treveropyge "sp. B" Struve 1958 trilobite
 Phacopida - Phacopidae
"Phacops (Phacops) breviceps" = Chotecops breviceps, "Phacops (Phacops) aff. breviceps" = Chotecops breviceps
"Phacops (Phacops) breviceps" = Chotecops breviceps Barrande 1846 trilobite
"Phacops (Phacops) aff. breviceps" = Chotecops breviceps Barrande 1846 trilobite
Cephalopoda
 Agoniatitida - Pinacitidae
Foordites occultus, Pinacites jugleri
Pinacites jugleri Roemer 1843 ammonite
Tentaculita
 Nowakiida - Nowakiidae
Nowakia sulcata
Nowakia sulcata Roemer 1843