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Saharops Bensaidi 150mm


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Saharops bensaidi 150mm overall length of the original matrix (seabed), which has been etched away to reveal the superb specimen trilobite beneath. The trilobite carapace exhibiting over 50 spines running through the axial and pleural lobes, in addition 22 pleura terminal spines and 11 posterior spines. Read our description below or to read more about the Class Trilobita, follow this link to discover another world. Discover more about the Class Trilobita, Invertebrate Notes on North West African trilobites

Genus: Saharops bensaidi, Acastoidea, Phacopina,
Age: Palaeozoic era, Middle Devonian period, Eifelian stage 393 to 383 million years ago.
Origin: Djebel Bou Lachral, Mader basin, Morocco, North Africa.

Saharops bensaidi measurements.
Height: 2.1 cm
Length: 9.5 cm (10.5 cm, sagittal length)
Width: 6.0 cm

Saharops bensaidi matrix overall measurements.
Height: 4.4 cm
Length: 15.0 cm
Width: 12.5 cm

Approximate weight: 571 g

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The fossil trilobite exhibits crisp details which have been conserved with an accomplished preparatory hand. Particularly worthy of note are the schizochroal eyes, which hold approximately 300 convex lenses per eye, around 10 to 11 lenses in approximately thirty vertical columns. Each eye crisp enough to count the lenses with the naked eye, without the aid of a magnifying glass. The biconvex lenses of phacopid trilobites were made up of doublet structures developed to correct for the large spherical distortion (aberration) of simple thick lenses. A wonderful and complex evolution. Here in this Sharps one can view this evolution of the eye in all its glory.

The eyes magnificent enough do not pale the rest of the anatomy of this arthropod specimen. As described above the spines are copious and well defined thanks to the skill of the preparitor, this aside the viewer will also be aware of the well shaped and presented dished matrix which was once the seabed this fast moving invertebrate scuttled along. The saharops has a characterful grin, particularly with his bumpy postules covering the anterior glabella (head-shield), he seemingly appears to be still animated, the art of the fossil technician in the fossil laboratory, this trilobite has endeavour to crawl off and slip off the authors desk, so it seems, so lifelike the bug...

Additional Information

Age Devonian
Origin Morocco
Colour Black