Genus Tetraprion

Species total:
5
Age range:
500 - 435 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Tetraprion Middle Ordovician Middle Ordovician
Tetraprion pozaryskae Early Ordovician Rakvere
Tetraprion sp Richmondian Richmondian
Tetraprion sp. Unde.& Will.,1995 Late Tremadocian Early Arenigian
Tetraprion sp.A Middle Caradocian Late Ashgillian