Where: Anti-Atlas, Morocco (30.6° N, 5.1° W: paleocoordinates 80.1° S, 100.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Didymograptus murchisoni graptolite zone, middle Member (Taddrist Formation), Darriwilian (467.3 - 458.4 Ma)

• The fossiliferous bed is restricted stratigraphically to a 40–60 cm-thick interval within a succession of silty shales with decalcified nodules towards the middle part of the Taddrist Formation.

• member-level stratigraphic resolution

Environment/lithology: offshore shelf; silty shale

Size class: macrofossils

Preservation: concretion

Collection methods: Repository: Museo Geominero of Madrid, Spain (MGM), except one specimen (Fig. 3D, E) which remains in the private collection of Mr Nicolás Mesas (Cadrete, Spain).

Primary reference: I. Rabano, J. C. Gutiérrez-Marco, and D. C. García-Bellido. 2014. A remarkable illaenid trilobite from the Middle Ordovician of Morocco. Bulletin of Geosciences 89(2):365-374 [M. Uhen/M. Uhen/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186254: authorized by Val Syverson, entered by Val Syverson on 18.06.2017

Creative Commons license: CC BY (attribution)