.9" Calymene Celebra Trilobite - Ohio

This is a .9" long, Calymene celebra trilobite from Ludlow Falls, Ohio preserved as an internal mold in Dolostone. These trilobites used to be fairly common, but over the decades the quarries they were collected from closed one by one and they are hard to find on the market now.

Calymene celebra is the state fossil Wisconsin in 1985.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet with over 25k currently described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.
DETAILS
SPECIES
Calymene celebra
LOCATION
Ludlow Falls, Ohio
FORMATION
Springfield Limestone
SIZE
.9" long
ITEM
#188860
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.