Double Crotalocephalina gibbus Trilobites

Crotalocephalina (Crotalocephalus) gibbus Early Devonian (395-345 million years ago)  Atchana, Morocco   Matrix approx. size: 8" x 5" x 3.5" Larger Trilobite approx. size: 3.5" Smaller Trilobite approx. size: 1" curled, 2" if outstretched   Beautiful specimen with two well-preserved trilobites.   Crotalocephalina gibbus is an extinct species of trilobite belonging to the order Phacopida, family Cheiruridae. It lived during the Devonian period. This species is well known from fossil deposits in Morocco. The head or cephalon of Crotalocephalina gibbus is semicircular, with a well-defined central lobe called the glabella. This area is often enlarged and marked with prominent furrows. The trilobite also boasts large compound eyes, typical of Phacopid species, which provide an extensive range of vision. Additionally, the thorax is composed of multiple segments that are connected, allowing for flexibility and the ability to curl up for protection. These creatures were found in the ocean, mo