Grou Limestone ("princeps"-Kalk), RT VII/8, Rabat-Tiflet Area, Morocco (Devonian of Morocco)

Where: Morocco (34.0° N, 6.9° W: paleocoordinates 56.3° S, 22.1° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Grou Limestone Formation, Pragian (410.8 - 407.6 Ma)

• Grou-Kalk ("princeps"-Kalk). Pragian. Level RT VII/8.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, gray limestone

• From Ref. 7488: "The Rabat-Tiflet area is a complex "anticlinal resp. anticlinorial" structure (W-E). The beds are folded in a mediotype style and disturbed by normal faults and several overthrusts of limited extent. Traces of isoclinal folding are rare. The folding is the result of the Hercynian (Variscan) orogeny. The R-T area is a typical region of the so-called Hercynian-Bohemian facies development of the Silurian and Devonian, moreover in facies and faunal development very reminiscent of the barrandian area...It is characterized by a complete marine succession, a conformable gradual transition from the Upper Silurian (Budnanian) into the early Lower Devonian (Lochkovian), without any effects of the Late Caledonian orogeny."
• Lithology based on stratigraphic column. "Weissgraue Crinoiden-Kalke"

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 27041: authorized by Michael Foote, entered by Michael Foote on 14.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Faunas of the R-T area include graptolites, tentaculitids, conodonts, and brachiopods. The last two groups have not been studied in detail.
Show authors, comments, and common names
Trilobita
 Phacopida - Cheiruridae
Cheirurus (Crotalocaphalina) maurus
 Phacopida - Calymenidae
"Calymene (Gravicalymene) "n. sp. A"" = Gravicalymene, Calymene (Gravicalymene) maura
"Calymene (Gravicalymene) "n. sp. A"" = Gravicalymene Shirley 1936 trilobite
Calymene (Gravicalymene) maura Alberti 1969 trilobite
 Proetida - Aulacopleuridae
Harpidella neptis
 Proetida - Otarionidae
Otarion (Otarion) gruanum n. sp.
Otarion (Otarion) gruanum n. sp. trilobite
 Proetida - Proetidae
Proetus (Proetus) sp. n. sp., "Proetus (Coniproetus) finitimus" = Longiproetus glandiferus finitimus, "Cornuproetus (? Cornuproetus) pribyli n. sp." = Buchiproetus pribyli, "Cornuproetus (Voigtaspis) voigti" = Voigtaspis voigti, "Cornuproetus (Lepidoproetus) lorae" = Lepidoproetus lorae, Wolayella maura
Proetus (Proetus) sp. n. sp. Steininger 1931 trilobite
"Proetus (Coniproetus) finitimus" = Longiproetus glandiferus finitimus Pribyl 1965 trilobite
"Cornuproetus (? Cornuproetus) pribyli n. sp." = Buchiproetus pribyli Alberti 1969 trilobite
"Cornuproetus (Voigtaspis) voigti" = Voigtaspis voigti Alberti 1967 trilobite
"Cornuproetus (Lepidoproetus) lorae" = Lepidoproetus lorae Alberti 1967 trilobite
Wolayella maura Alberti and Erben 1966 trilobite
 Corynexochida - Styginidae
Decoroscutellum lepidum
 Odontopleurida - Odontopleuridae
Leonaspis hastata
Tentaculita
 Nowakiida - Nowakiidae
? Nowakia acuaria