7.8" Long, Prone Isotelus Brachycephalus Trilobite - Ohio

This is a large, 7.8" long, prone Isotelus brachycephalus trilobite collected from the Waynesville Formation (Blanchester Series) of Adams County, Ohio. It's nicely centered on large slab of stabilized shale that measures 15.7 x 13.5".

As is almost always the case with these large Isotelus, the shell was very fractured so it required substantial amounts of repair to put it back into place, and restoration or any missing bits of shell. The right genal spine has mostly been restored and left with free-standing presentation.

About Trilobites

Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.
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DETAILS
SPECIES
Isotelus brachycephalus
LOCATION
Adams County, Ohio
FORMATION
Waynesville Formation, Blanchester Series
SIZE
Trilobite: 7.8" long, Rock: 15.7 x 13.5"
SUB CATEGORY
ITEM
#225039
GUARANTEE
We guarantee the authenticity of all of our specimens.