Mazon Creek Fossil Fauna

Arthropods 

Scorpions, Eurypterids, and Euthycarcinoids

Scorpions

Eoscorpius sp.

Eurypterids

​Adelophthalmus mazonensis

​Sea Scorpions

Euthycarcinoids

Kottixerxes gloriosus

Smithixerxes juliarum