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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.
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.
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: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.
SPECIES
Isotelus brachycephalus
LOCATION
Adams County, Ohio
FORMATION
Waynesville Formation, Blanchester Series
SIZE
Trilobite: 7.8" long, Rock: 15.7 x 13.5"
CATEGORY
SUB CATEGORY
ITEM
#225039
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