Trilobiten-Bank, RT VI/6 & RT VII/3, 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 Upper Lower Budnanian. Level 6 of RTVI and level 3 of RTVII.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; black limestone and shale

• 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. "Schwarze Plattenkalke mit Tonschiefer-Zwischenlagen; Tonschiefer mit Kalklinsen." It looks like the collection comes from the limestone beds.

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 27030: 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. svobodai, Kosovopeltis ennadifi n. sp.
Kosovopeltis ennadifi n. sp. trilobite
 Proetida - Proetidae
"? Cornuproetus (? Cornuproetus) ? walliseri" = Interproetus walliseri
"? Cornuproetus (? Cornuproetus) ? walliseri" = Interproetus walliseri Alberti 1967 trilobite
 Proetida - Tropidocoryphidae
Decoroproetus decorus
Decoroproetus decorus Barrande 1846 trilobite
 Proetida - Aulacopleuridae
Harpidella cf. novella
 Proetida - Otarionidae
Otarion (Maurotarion) cf. novellum
 Phacopida - Homalonotidae
? Trimerus "sp. A"
? Trimerus "sp. A" Green 1832 trilobite
 Phacopida - Phacopidae
? Phacops communis, "Phacops (Ananaspis) fecundus" = Ananaspis fecunda
"Phacops (Ananaspis) fecundus" = Ananaspis fecunda Barrande 1852 trilobite
 Odontopleurida - Odontopleuridae
Leonaspis leonhardi
Leonaspis leonhardi Barrande 1846 trilobite