Arthropod
Early Ordovician (Arenigian)
Upper Fezouata Formation
Zagora, Draa Valley
Morocco

Ordovician arthropods occupied nearly every marine ecological niche. Some crawled across the seafloor scavenging organic material, others hunted prey, while a few swam freely in the water column. Sizes ranged from only a few millimeters to large predators over a meter long.
Large 65mm arthropod on 124mm slab. First we have ever seen