Coming
from the Lower Ordovician Kunda level deposits of the Wolchow River region
near
Saint Petersburg, Russia, this is an example of the unusual trilobite
Cybele bellatula, a member of the Order Phacopida, Family Encrinuridae.
Riccardo
Levi-Setti coined
the term "Butterflies of the Sea" for trilobites, and this one fits
that apellation to a T. The spines may have served a "snowshoe" function,
keeping the trilobite near the surface of an unstable bottom, perhaps with the
eyestalks exposed to search for predator and prey alike.
Cybele
bellatula is a small trilobite (maximum size about 45 mm) with numerous
interesting morphological features: deep, thin lateral furrows;
high eye-stalks, exceeding in length the cephalon, with extremely
small visual surface; eye-stalks that are about 1/64th inch diameter;
glabella covered with small tuberkels; etc., see pics. This older
Ordovician trilobite also occurs in Sweden and Norway.
Cybele
- Mother Earth Goddess - ancient Oriental and Greco-Roman deity
that represented
Gaia, the deified earth.
Aso
see: Russian
Phacopid Trilobites |