Also known as Ktaoua Grp, Ktaoua Fm., Anti-Atlas Mountains, Morocco

Where: Zagora, Morocco (30.4° N, 5.3° W: paleocoordinates 84.0° S, 73.2° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Ancyrochitina merga other zone, Upper Ktaoua Formation (Ktaoua Group), Kralodvorian (449.8 - 445.2 Ma)

• Given as the upper part of the formation, which is in the Ancyrochitina merga chitinozoan zone.

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous shale

Size class: macrofossils

Primary reference: C. Babin and J. Destombes. 1990. Les mollusques bivalves et rostroconches Ordoviciens de l’Anti-Atlas marocain: Intérêt paléogéographique de leur inventaire. Géologie Méditerranéenne 17:243-261 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 20962: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 13.06.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)