Tasdrigal? Fm (Ordovician of Morocco)

Also known as First Bani Grp, Tasdrigal? Fm., Anti-Atlas Mts., Morocco

Where: Morocco (28.0° N, 9.0° W: paleocoordinates 84.4° S, 96.8° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Laufeldochitina clavata other zone, Taddrist Formation (First Bani Group), Oretanian (466.0 - 460.9 Ma)

• The name of the formation is hard to read and may be spelled incorrectly. PJW: it is Taddrist. Didymograptus murchisoni graptolite zone.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

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: biostratigraphic analysis

PaleoDB collection 20972: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 13.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Primarily bivalve taxonomy and biostrat.
Rhynchonellata
 Orthida - Heterorthidae
Bivalvia
 Cyrtodontida - Cyrtodontidae
? Cyrtodontula sp. Tomlin 1931 clam
 Nuculida - Cardiolariidae
Cardiolaria sp. Munier-Chalmas 1876 clam