Andouille Fm., Armorican Massif, Mayenne, France (Ordovician of France)

Where: Mayenne, France (48.0° N, 1.0° W: paleocoordinates 68.2° S, 70.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Andouille Formation, Berounian (457.9 - 449.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore; lithified, micaceous siltstone

• Micaceous siltstone

Size class: macrofossils

Primary reference: J. L. Henry, M. Vidal, and L. LaCombe. 1992. Apparition soudaine de Protolloydolithus (Trilobita, Trinucleidae) dans l'Ordovicien (Llandeilo) du Massif Armoricain; un essai d'interpretation. Géobios 26(2):201-206 [A. Miller/P. Novack-Gottshall/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 20922: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 12.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Biostratigraphically important fossils, primarily trilobites
Trilobita
 Phacopida - Pliomeridae
Placoparia sp. Hawle and Corda 1847 trilobite
 Phacopida - Acastidae
Kloucekia sp. Delo 1935 trilobite
 Phacopida - Dalmanitidae
Morgatia sp. Hammann 1972 trilobite
 Phacopida - Calymenidae
Neseuretus sp. Hicks 1873 trilobite
 Phacopida - Homalonotidae
Plaesiacomia sp. Hawle and Corda 1847 trilobite
Colpocoryphe sp. Novak and Perner 1918 trilobite
 Trinucleida - Trinucleidae
Protolloydolithus sp. Williams 1948 trilobite
Marrolithus sp. Bancroft 1929 trilobite
Rhynchonellata
 Orthida - Heterorthidae
Heterorthina sp. Bancroft 1928
Bivalvia
 Nuculanida - Malletiidae
? Sluha sp. Barrande 1881 clam