Trilobite
Phacops rana milleri
Paleobiology
Paleobiology
Paleobiology
Phacops rana milleri
Flexicalymene meeki
Bristola bristolensis
Agnostus
Paedeumias clarki
Fremontia fremonti
Bristolia isolenos
Paedeumias nevadensis
Scalpellidae
Pinnixa galliheri
Phacops
Phacops logani