El Atrous, Faunule 1 (Devonian of Morocco)

Where: Morocco (31.0° N, 4.1° W: paleocoordinates 57.5° S, 28.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: dehiscens zone, Seheb El Rhassel Group, Early/Lower Emsian (409.1 - 402.5 Ma)

Environment/lithology: offshore shelf; claystone and marl

Size classes: mesofossils, microfossils

Primary reference: C. Klug, B. Kröger, D. Korn, M. Rücklin, M. Schemm-Gregory, K. De Baets, and R. H. Mapes. 2008. Ecological Change during the early Emsian (Devonian) in the Tafilalt (Morocco),the Origin of the Ammonoidea,and the First African Pyrgocystid Edrioasteroids,Machaerids and Phyllocarids. Palaeontographica Abteilung A (Band 283)83-176 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 150363: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 06.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Hyolitha
 Orthothecida -
Orthotheca sp. Novak 1886
Strophomenata
 Strophomenida - Douvillinidae
Rhynchonellata
 Athyridida - Athyrididae
Polychaeta
 Cuniculepadida - Lepidocoleidae
Bivalvia
 Cyrtodontida - Antipleuridae
 Nuculida -
 Protobranchia -
"Cucullella (Cucullella) triquetra" = Nuculites, Palaeoneilo emarginata
"Cucullella (Cucullella) triquetra" = Nuculites clam
Palaeoneilo emarginata Conrad 1841 clam
 Protobranchia - Nuculanidae
Phestia rostellata pointed nut clam
Gastropoda
 Bellerophontida - Tropidodiscidae
Sinuitina (Sinuitina) sp. Knight 1945 snail
 Murchisoniina - Gosseletinidae
Lukesispira pulchra Frýda and Manda 1997 snail
Cephalopoda
 Orthocerida - Orthoceratidae
 Orthocerida - Lamellorthoceratidae
Arthrophyllum vermiculare Termier and Termier 1950
 Orthocerida - Sphaerorthoceratidae
 Bactritida - Bactritidae
Chondrichthyes
 Acanthodei - Acanthoessidae
Machaeracanthus sp. Newberry 1857 shark
Machaeracanthus cf. peracutus Newberry 1857 shark