Trilobite
Calymene celebra
Trilobites, Barnacles, Crabs and Insects
Paleobiology
Paleobiology
Calymene celebra
Elrathia kingii
Flexicalymene celebra
Elrathia kingii
Elrathia kingii
Elrathia kingii
Peronopsis interstrictus
Peronopsis interstrictus
Griffithides
Phacops logani
Phacops
Pinnixa galliheri