Bargain, 3.2" Struveaspis Trilobite - Small Eyed Phacopid

 
 
 
 
This is a large, 3.2" specimen of the small-eyed phacopid, Struveaspis bignoni. Two defining characteristics of Struveaspis that seperate it from most phacopids is it's smooth shell and very tiny eyes with few lenses. The trilobite has quite a bit of compression and some shell restoration hence the bargain price.

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 described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left a excellent fossil record.
DETAILS
SPECIES
Struveaspis bignoni
LOCATION
Morocco
FORMATION
Bou Tchrafine Formation
SIZE
3.3" long
SUB CATEGORY
ITEM
#134354
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