Ostracoden-Kalk, RT VI/4 & RT VII/2, Rabat-Tiflet Area, Morocco (Silurian of Morocco)

Where: Morocco (34.0° N, 6.9° W: paleocoordinates 69.1° S, 22.9° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Ludlow (427.4 - 423.0 Ma)

• Age given as Lowest Budnanian. Level 4 of RTVI and level 2 of RTVII.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray, argillaceous 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. "Duennplattige graue Schlammkalke." [Schlamm could mean mud or silt.]

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 27029: 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
 Corynexochida - Styginidae
Kosovopeltis ex gr. partschi
 Proetida - Proetidae
"Cornuproetus (? Cornuproetus) walliseri" = Interproetus walliseri
"Cornuproetus (? Cornuproetus) walliseri" = Interproetus walliseri Alberti 1967 trilobite
 Proetida - Aulacopleuridae
Harpidella maura
 Phacopida - Phacopidae
Phacopidella bulliceps
 Phacopida - Cheiruridae
Cheirurus (Cheirurus) aff. obtusatus
 Trinucleida - Raphiophoridae
Raphiophorus roualti
 Odontopleurida - Odontopleuridae
Leonaspis ex gr. roemeri
Leonaspis ex gr. roemeri trilobite
n. sp.