Some trilobites were pelagic swimmers, this trilobite Cyphaspis was a bottom seabed dweller, a forager its natant hypostome, which was a hard chitin mouth cover was a simple element, a muscle fixed cover which enabled the trilobite to sieve bottom silts filtering out organism to devour, as Cyphaspis dredged along the bottom. Its eyes being stalked helped it to see above the disturbance of its own forward motion.
The large for type, Cyphaspis Trilobite 45mm (1.75 inches) overall in length including spines. Instantly recognisable by its distinctive constituent parts, firstly the enlarged and globose cephalon (head), the glabella (centre part of the head) granulose, covered with many tubercles. This situated between high set spindly or stalked eyes set on the glabella shield, these also encrusted with tubercules. Behind the cephalon shield, protrude long glabella genal cheek spines again covered with tubercles. Another long single thoracic spine longer than its complete carapace (body) length stretches from the an axial lobe or middle thorax lobe (segment L6), the sixth segment post the cephalon. This spine extends over the pygidium (tail shield). The genal glabella spines are finely tapered and very long, these attached to the glabella lateral border field, resemble another trilobites diadem or semi-circular coronet form of glabella border, the Diademaproetus's. However, the Cyphaspis differing having a more elongated genal cheek spine. The specimen has been painstakingly cleaned and removed from the matrix (fossil bedrock) limestone.
Genus: Cyphaspis. (Order Proetida, Family Aulacopleuridae). Age: Palaeozoic era, middle Devonian period, 395 million years ago. Origin: Lamrakeb region deposits near Alnif, Morocco, North Africa. Phylum Arthropoda, Class Trilobita, Order Proetida, Family Aulacopleuridae, Genus: Cyphaspis. (Order Lichida, Family Lichidae). - Burmeister 1843.
This trilobite was collected by one of our team members in North Africa and cleaned professionally in the Laboratory in Morocco. In the last decade, the Moroccan preparators have gained great skill cleaning and preparing trilobites, enabling top quality fossils to remain affordable, having a fraction of the cost of American or European Lab work. Having our association we have first-hand knowledge of each specimen, guaranteeing the authenticity of our ancient arthropod, a member of the invertebrate group, a genuine fossil trilobite supplied with a certificate from The Fossil store. Cyphaspis: Order Proetida, Superfamily Aulacopleuroidea, Family Aulacopleuridae.