4.35" Gigantopygus Trilobite - Issafen, Morocco

In the past couple of years, deposits near Issafen, Morocco have begun yielding a new assemblage of Early Cambrian trilobites. This is a large specimen of one of the rarer components of the fauna Gigantopygus papillatus.

There are two "types" of Gigantopygus papillatus found in two separate horizons at the site, one being much fatter (this one) and the other narrower. Some have claimed they maybe two separate species but it may simply be due to different preservation and levels of compression in the two horizons.

This is a stunning, 4.3" long specimen of Gigantopygus papillatus that has been very nicely prepared with the axial spines on the last few segments free-standing. Comes with a display stand.

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 currently described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.

Gigantopygus papillatus (Hupe’ 1953)
Issafen, Morocco
Issafen Formation
4.3" long, Rock 7.3x5.9"
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