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Two ancient mollusks from the Carboniferous Age, the Productus Nebrascensis and the Athyris subtilita.

Ancient Mollusks

Two ancient mollusks from the Carboniferous Age, the Productus Nebrascensis and the Athyris subtilita.

An ancient mollusk from the Carboniferous Age, the Archimedes reversa.

Archimedes Mollusk

An ancient mollusk from the Carboniferous Age, the Archimedes reversa.

An ancient radiate from the Carboniferous Age, the Actinocrinus proboscidialis.

Actinocrinus Radiate

An ancient radiate from the Carboniferous Age, the Actinocrinus proboscidialis.

An ancient radiate from the Carboniferous Age, the Lithostrotion Canadense.

Lithostrotion Radiate

An ancient radiate from the Carboniferous Age, the Lithostrotion Canadense.

An ancient radiate from the Carboniferous Age, the Pentremites pyriformis.

Pentremites Radiate

An ancient radiate from the Carboniferous Age, the Pentremites pyriformis.

An ancient radiate from the Carboniferous Age, the Zeacrinus elegans.

Zeacrinus Radiate

An ancient radiate from the Carboniferous Age, the Zeacrinus elegans.

An ancient mollusk from the Carboniferous Age, the Spirifer cameratus.

Spirifer Mollusk

An ancient mollusk from the Carboniferous Age, the Spirifer cameratus.