Devonian
Archaeopteris obtusa
Middle Devonian
Marcellus Shale
Sullivan Co., New York
Seed fern
Platyceras bucculentum
Middle Devonian
Silica Fm.
Monroe Co., Michigan
Gastropod (snail)
Crotalocephalus gibbus
Devonian
Hamar Laghdad Fm.
Alnif, Morocco
Trilobite
Phacops rana crassituberculata (Eldredgeops)
Middle Devonian
Silica Fm.
Lucas Co., Ohio
Trilobite (2 views)
Arthroacantha carpenteri with
Platyceras arkonensis
Middle Devonian
Arkona Shale
Ontario, Canada
Crinoid with Gastropod (snail) on crown
Gerastos tuberculatus
Devonian
Hamar Laghdad Fm.
Alnif, Morocco
Trilobite
Kettneraspis sp.
Devonian
Hamar Laghdad Fm.
Alnif, Morocco
Trilobite
Odontochile syncrama
Lower Devonian
Bois D'Arc Fm.
Coal Co., Oklahoma
Trilobite
Heliophyllum halli
Middle/Lower Devonian
Columbus Limestone
Madison Co., Ohio
Horn Coral
Phacops rana milleri
(Eldredgeops)
Middle Devonian
Silica Fm.
Lucas Co., Ohio
Trilobite (2 views)
Paraspirifer bownockeri
Middle Devonian
Silica Fm.
Lucas Co., Ohio
Brachiopods
Platyceras arkonensis
Middle Devonian
Arkona Shale
Ontario, Canada
Gastropod (snail)
Platyceras rarispinum
Middle Devonian
Silica Fm.
Monroe Co., Michigan
Gastropod (snail)
Favosites cervicorna
Upper Devonian
Frasnian
Pas De Calais, France
Coral
Cyrtospirifer rukinensis
Upper Devonian
Voronezh, Russia
Brachiopod
Cordania wessmani
Lower Devonian
Haragan Fm.
Coal Co., Oklahoma
Trilobite
Salteraster solwini
Lower Devonian
Humevale Siltstone
Victoria, Australia
Starfish
Acastoides verneulli
Lower Devonian
Icla Fm.
Tomina, Bolivia
Trilobite