Description
Early Ordovician (Arenigian)
Upper Fezouata Formation
Zagora, Draa Valley, Morocco
Very rare and unusual 24mm side view with appendages visible on 68mm slab.
A synziphosurine is a member of a suborder of arthropods, Synziphosurina, that was ancestral to the Order Xiphosura, which includes the extinct and modern horseshoe crabs.
Video is a 3D scan of a related Silurian specimen
