Ain ed Dick Limestone, RT V, 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

• local area-level geographic resolution

When: Ain ed Dick Limestone Formation, Pragian (410.8 - 407.6 Ma)

• Ain ed Dick-Kalk, middle to younger Pragian. Sect. RT V, level 2.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray, argillaceous limestone and shelly/skeletal 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. Principal lithologies are gray, argillaceous (Schlamm-) limestone and shelly limestone. Unclear from symbols whether the latter is crinoidal or crinoidal-tentaculite limestone.

Primary reference: G. K. B. Alberti. 1970. Trilobiten des juengeren Siluriums sowie des Unter- und Mitteldevons. II. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 525:1-233 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27055: authorized by Michael Foote, entered by Michael Foote on 15.11.2002

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
Tentaculita
 Nowakiida - Nowakiidae
Nowakia acuaria
Trilobita
 Corynexochida - Styginidae
Kolihapeltis chlupaci, Platyscutellum cf. viator
 Phacopida - Cheiruridae
"Cheirurus (Crotalocephalina) maurus" = Crotalocephalus maurus
"Cheirurus (Crotalocephalina) maurus" = Crotalocephalus maurus Alberti 1966 trilobite
 Phacopida - Phacopidae
"Phacops (Reedops) aff. bronni" = Reedops bronni
"Phacops (Reedops) aff. bronni" = Reedops bronni Barrande 1846 trilobite
 Proetida - Otarionidae
Otarion (Otarion) latum
 Proetida - Proetidae
"Unguliproetus gibbosus n. sp." = Pragoproetus gibbosus, Cornuproetus (Cornuproetus) rudrichteri, Prodrevermannia medioxima, Prodrevermannia jaegeri
"Unguliproetus gibbosus n. sp." = Pragoproetus gibbosus Alberti 1969 trilobite
Prodrevermannia medioxima Alberti 1967 trilobite
Prodrevermannia jaegeri Alberti 1964 trilobite
 Proetida - Tropidocoryphidae
Alberticoryphe rugosa, Alberticoryphe cogneyi
Alberticoryphe rugosa Alberti 1967 trilobite
Alberticoryphe cogneyi Alberti 1964 trilobite