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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