Devonian Crinoids

Photographed by Michael P. Klimetz

Megistocrinus

[Calyx]

Alpena

MICHIGAN

Photographed by Michael P. Klimetz

Myelodactylus nodosarius

[Root System]

Helderbergian

Clarita

OKLAHOMA

Photographed by Michael P. Klimetz

Myelodactylus nodosarius

[Root System]

Helderbergian

Clarita

OKLAHOMA

Photographed by Michael P. Klimetz

Arthrocantha carpenteri

[Cup]

Silica Shale

Middle Devonian

Sylvania

OHIO

Photographed by Michael P. Klimetz

Arthrocantha carpenteri

[Cup]

Silica Shale

Middle Devonian

Sylvania

OHIO

Photographed by Michael P. Klimetz

Arthrocantha carpenteri

[Cup]

Silica Shale

Middle Devonian

Sylvania

OHIO

Photographed by Michael P. Klimetz

Arthrocantha carpenteri

[Cup]

Silica Shale

Middle Devonian

Sylvania

OHIO

Photographed by Michael P. Klimetz

Unidentified Crinoid Columnal

Arkona Shale

Middle Devonian-Givetian

Hungry Hollow

Arkona

Ontario

CANADA