cf Thysanopeltella (Thysanopeltis) sp
Trilobites Order Corynexochida, Family Styginidae
Proetina sp
Trilobites Order Proetida, Superfamily Proetoidea
Geological Time: Middle to Lower Devonian, Emsianto to Eifellian Stage
Size: Styginida: 45 mm long by 32 mm wide Proetid: 8 mm by 5 mm (as exposed) on an 82 mm by 80 mm matrix
Fossil Site: Hmar Lakhdad, Morocco
Code: 16067
Price: Sold
 Description:
These trilobites come from a new deposit in a location known as
Hmar Lakhdad in Morocco. Hmar Lakhdad means “red cheeks” in
Arabic, an allusion to the rich wine red color preserved in the
specimens from this location, a consequence of high levels of iron
in the silicified exoskeleton. Some Phacopids have been found with
a red exoskeleton and green eyes, a consequence of differential
degrees of silicification of the lenses and its impact on iron
and possibly manganese contained therein. The larger is a member
of the Styginidae most likely the genus Thysanopeltella, while
the diminutive trilobite found lower on the left side is a proetid
of the genus Proetina. |
