Reedops Trilobite | Morocco

Reedops
Lower Devonian
Atchana, Morocco

Trilobite approx. size: 2.75" x 1.25"

Matrix approx. size: 4" x 4" x 1.75"

Reedops is a member of the Phacopid family, well known for their distinctive large compound eyes and ability to roll up into a ball for protection.

Morphology:

• Exoskeleton: Like other phacopids, Reedops possessed a heavily calcified exoskeleton with a distinct three-lobed body plan.

• Cephalon (head): Broad and semicircular with large, prominent schizochroal eyes composed of individually set lenses - an adaptation characteristic of Phacopidae. Many specimens show a well-developed glabella (central lobe of the head).

• Thorax: Comprised of multiple articulated segments (commonly 11), allowing for flexibility and enrollment (the ability to roll into a defensive ball).

• Pygidium (tail): Small to medium in size, often with distinct segmentation visible.
  

Size:
Typical adult Reedops ranged from about 3 to 8 cm in length, though exceptionally large specimens may exceed 10 cm.

Paleoecology:
Reedops lived on the seafloor in shallow tropical seas, scavenging and feeding on organic material within the sediment. Their well-developed eyes gave them excellent vision for detecting predators and navigating complex reef environments.

Preservation:
Moroccan limestones often preserve Reedops with exquisite detail, sometimes even in three dimensions, making them popular with collectors. Specimens are commonly found articulated due to rapid burial in calm, oxygen-poor environments.  Many specimens display enrollment - a defensive posture frozen in the fossil record.