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