2.8" Crotalocephalina & Paralejurus Trilobite Association

This is a natural association of two different Lower Devonian trilobites from Foum Zguid, Morocco. There is a Crotalocephalina sp. which would be about 2.4" long if outstretched and a Paralejurus brongniarti which is about 1.8" long. The limestone surrounding them has been removed and sculpted to create a nice 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.
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DETAILS
SPECIES
Crotalocephalina sp. & Paralejurus brongniarti
LOCATION
Ma’der el Kebir, Foum Zguid, Morocco
FORMATION
Assa Formation
SIZE
Crotalocephalina 2.4" long
SUB CATEGORY
ITEM
#88869
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