Nov 4, 2013
The Sphaerocoryphe (1854)
Phylum : Arthropoda Class : Trilobita Order : Phacopida Family : Cheiruridae Genus : Sphaerocoryphe Species : S. thomsoni, S. ludwigseni
Middle Ordovician/Silurian
Australia, Europe and North America (map)
Sphaerocoryphe is a genus of trilobite that lived from the middle Ordovician to the Silurian. Its fossils have been found in Australia, Europe, and North America. Both Sphaerocoryphe and Hemisphaerocoryphe had a characteristically bulbous glabella, and the two may represent only one genus.