1.4" Triarthrus Trilobite - Ottawa, Canada

Here's a species that doesn't appear for sale very often, Triarthrus rougensis from the Billings Shale near Ottawa. It's 1.4" long including the spine and partially replaced with pyrite.
DETAILS
SPECIES
Triarthrus spinosus
LOCATION
Ottawa, Canada
FORMATION
Billings Shale
SIZE
1.4" long including spine
SUB CATEGORY
ITEM
#115239
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