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Trilo-Related Gifts

Uncommon Species of Illaenus from Russia
RUSSIA • ILLAENUS
Stock Number TTRIT05

Name:   Illaenus atavus
Age:  Lower Ordovician
Formation:  Kunda Level
Location:  St. Petersburg, Russia
Size:  Trilobite is 2.7 inches long
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Here is a nice specimen of an unusual trilobite. This is Illaenus atavus from the Lower Ordovician of Russia. This species of Illaenus has a very long, almost smooth pygidium and rounded genal areas. This detailed trilobite is extremely inflated and very well preserved in an outstretched position. The small, wide-set eyes are easily seen, and the individual thoracic segments are quite distinct. The butterscotch-colored bug contrasts beautifully with the light-colored matrix. The fossil is well presented on the sculpted plate of limestone. This is a very attractive example of this uncommon species of Illaenus.