La Saudrais, Guichen (Ordovician to of France)

Where: France (48.0° N, 1.8° W: paleocoordinates 66.6° S, 77.5° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Traveusot Formation, Middle Ordovician to Middle Ordovician (470.0 - 458.4 Ma)

• Llandeilo

Environment/lithology: offshore; lithified, silty siliciclastic sediments

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: J.-L. Henry. 1980. Trilobites ordoviciens du Massif armoricain. Mémoires de la Société Géologique et Minéralogique de Bretagne 22:1-250 [D. Gendry/D. Gendry]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174545: authorized by Damien Gendry, entered by Damien Gendry on 15.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Trinucleida - Dionididae
Dionide mareki Henry and Romano 1978 trilobite