Symphysurus

Symphysurus is a genus of trilobite of the Asaphida order. These fast-moving nektonic carnivores lived in the Ordovician period^[1][2]

Symphysurus Temporal range: Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Symphysurus fossil from the Ordovician period, Iran
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	†Artiopoda
Class:	†Trilobita
Order:	†Asaphida
Family:	†Nileidae
Genus:	†Symphysurus Goldfuss, 1843