Gres de May Fm., May-sur-Orne, Calvados (Ordovician to of France)

Where: Calvados, France (49.0° N, 0.0° W: paleocoordinates 67.0° S, 69.5° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Grès de May Formation, Dobrotivian to Dobrotivian (459.0 - 449.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shoreface; lithified sandstone

• Light-colored sandstone

Size class: macrofossils

Primary reference: W. Hammann and J. L. Henry. 1978. Quelques especes de Calymenella, Eohomalonotus et Kerfornella (Trilobita, Ptychopariida) de l'Ordovicien du Massif Armoricain et de la Peninsule Iberique. Senckenbergiana Lethaea 59(4-6):401-429 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 20884: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 12.06.2002, edited by Damien Gendry

Creative Commons license: CC BY (attribution)

Taxonomic list

• Primarily trilobite taxonomy and biostratigraphy
Show authors, comments, and common names
Trilobita
 Phacopida - Homalonotidae
Calymenella sp., Eohomalonotus sp., Eohomalonotus brongniarti, Kerfornella sp., Iberocoryphe sp.
Calymenella sp. Bergeron 1890 trilobite
Eohomalonotus sp. Reed 1918 trilobite
Eohomalonotus brongniarti Deslongchamps 1825 trilobite
Kerfornella sp. Henry 1976 trilobite
Iberocoryphe sp. Hammann 1977 trilobite
 Trinucleida - Trinucleidae
Marrolithus sp.
Marrolithus sp. Bancroft 1929 trilobite
Bivalvia
 Modiomorphida - Modiomorphidae
Modiomorpha sp.
Modiomorpha sp. Hall and Whitfield 1869 clam