5Fossil sites
Grès de May
Grès de May in France: 5 fossil sites. Typical age: 461–450 million years (Ordovician).
5Fossil sites
22Finds
461–450 million yearsTypical age
OrdovicianMain period
Where its fossils were found
Ordovician
By geological period
Ordovician5
What was found
Trilobites · 22Eohomalonotus, Iberocoryphe, Kerfornella, Crozonaspis, Calymenella, Marrolithus, Homalonotus, Plaesiacomia, Mucronaspis
Towns with the most fossil sites nearby
Other formations of the same period
Ordovician
Andouillé Formation 22Saint-Chinian Formation 15Landeyran Formation 14Couches du Foulon Formation 10Traveusot Formation 10Couches de la Maurerie Formation 10Schistes d’Angers Formation 9Postolonnec Formation 9Val d'Homs Formation 7La Maurerie Formation 6Grès Armoricain 6Mont de Besneville Formation 4Schistes de Saint-Chinian Formation 3Kermeur Formation 3Saint-Germain-sur-Ille Formation 3Glauzy Formation 3Cluse de l’Orb Formation 3