Query: Silurian arthropods of Europe or devonian arthropods of North America
Domain: animals
Relevant documents:
Aquilonifer
Trigonotarbida
Hardieopterus
Carcinosoma
Brachyopterella
Stoermeropterus
Hallipterus
Erieopterus
Xyloiuloidea
Dibasterium
Uraraneida
Necrogammarus
Eusarcana
Grossopterus
Salteropterus
Kiaeropterus
Microdecemplex
Xylokorys
Stylonurella
Angustidontus