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This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
1.95" Huge Eyed Trilobite (Cyclopyge) Fossil - Exceptionally Large
This is a massive example of a huge-eyed pelagic trilobite, Cyclopyge sibilla. This was collected from an isolated locality near El Kaid Rami which produced a small number of these 3D Cyclopyge specimens. The site is now collected out and we were able to acquire most, if not all of the specimens collected from the locality. This is one of only two extra large specimens, with the majority of the specimens being about an inch or less.
Check out the amazing eye facet detail in it's eyes! This specimen has a few small spots of restoration on the glabella and the head was repositioned slightly during preparation. Don't miss out, this will likely be the only super-sized example to come on the market.
Check out the amazing eye facet detail in it's eyes! This specimen has a few small spots of restoration on the glabella and the head was repositioned slightly during preparation. Don't miss out, this will likely be the only super-sized example to come on the market.
About Cyclopyge
Cyclopyge is a distinctive genus of trilobite from the Middle Ordovician period, known for its unusually large, crescent-shaped eyes that inspired its name—meaning “round eye.” Fossils of this genus are found in marine deposits across Europe, North Africa, and parts of Asia, often preserved in fine-grained limestones or shales that once formed on the floors of ancient seas.
Adapted for life in deeper or dimly lit waters, Cyclopyge possessed enormous compound eyes that provided a nearly panoramic field of vision—an evolutionary advantage for detecting predators or prey in low light. Its streamlined, oval body and reduced spines suggest it was a free-swimming, pelagic trilobite rather than a bottom-dweller. The cephalon (head) was broad, the thorax composed of relatively few segments, and the pygidium (tail) was small and rounded.
These features make Cyclopyge one of the most recognizable and specialized trilobites, offering fascinating insight into how some Ordovician trilobites adapted to open-water habitats rather than the seafloor environments typical of most of their relatives.
Cyclopyge is a distinctive genus of trilobite from the Middle Ordovician period, known for its unusually large, crescent-shaped eyes that inspired its name—meaning “round eye.” Fossils of this genus are found in marine deposits across Europe, North Africa, and parts of Asia, often preserved in fine-grained limestones or shales that once formed on the floors of ancient seas.
Adapted for life in deeper or dimly lit waters, Cyclopyge possessed enormous compound eyes that provided a nearly panoramic field of vision—an evolutionary advantage for detecting predators or prey in low light. Its streamlined, oval body and reduced spines suggest it was a free-swimming, pelagic trilobite rather than a bottom-dweller. The cephalon (head) was broad, the thorax composed of relatively few segments, and the pygidium (tail) was small and rounded.
These features make Cyclopyge one of the most recognizable and specialized trilobites, offering fascinating insight into how some Ordovician trilobites adapted to open-water habitats rather than the seafloor environments typical of most of their relatives.
SPECIES
Cyclopyge sibilla
LOCATION
El Kaid Rami, Morocco
FORMATION
Lower Ktaoua Formation
SIZE
Trilobite: 1.95" long
CATEGORY
SUB CATEGORY
ITEM
#346039
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