New Specieas Ceratarges aries Moroccan Trilobite

Ceratarges aries

Trilobites Order Lichida, Family Lichidae

Aff Boeckops stelcki

Trilobites Order Phacopida, Family Phacopidae

Geological Time: Middle Devonian, Eifellian Stage

Size mm (25.4mm=1 inch) Ceratarges: 60 mm long (curve measure) by 45 mm wide (including spines) Boeckops : 58 mm long (curve measure) by 30 mm wide on a 110 mm by 105 mm matrix.

Fossil Site: El Otfal Formation, Serdrare, Tazarine, Morocco

Fossil Code: 16183

Price: Sold

Description: The spiny trilobite is a member of the Order Lichida, Family Lichida from the “Ceratarges horizon” Devonian deposits of Zireg, Morocco known as a member of the genus Ceratarges. It was assigned a species name a few years ago the source of which is derived from the fact that the spines of the head are reminiscent of a ram. It is the rarest of the three newly-described Ceratarges. Indeed, it only represted some 5 percent of the specimens found at the type locality. The dramatic cephalic spines have been prepared freestanding. It is an excellent example of the taxon with numerous bizarre features. See my other offerings for yet other members of the genus, Ceratarges ziregensis and Ceratarges koumalii. The second trilobite is most likely related to Boeckops stelcki, a Phacopid better known from the Czech Republic.

Reference: Geologica Belgica (2011) 14, 3/4, pp 193-202.

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