Carboniferous Fossils (358.9-298.9 mya)

The carboniferous period is named after the modern-day coal deposits that originally formed from the remains of the great forests that covered large portions of continents around the world at the time.

Oklahoma (USA)


This coral specimen appears to be mostly entire and grew in an inverted conical shape.

Broken Coral

This shelf of coral has broken away from the rest of its form, exposing the intricate internal structures of the coral polyps.


This specimen contains many species, most notably a few well-preserved brachiopods at its narrow end as well as a few of the spines that would have been attached to their shells in life.



Seed Fern Plate

This specimen contains the leaf and stem impressions of at least two different species of carboniferous seed ferns.

Calamites Stems

Preserved here are several small stem segments of the giant arborescent (tree-like) horsetail Calimites.

Annularia plate

Annularia is the forma taxon assigned to the leaf fossils of the giant arborescent horsetail Calamites.