Asaphus kowalewskii Russian Trilobite with Enormous Eyestalks

Name: Trilobita: Asaphus kowalewskii Russian trilobite

Age: Middle Ordovician, Asery Horizon

Size: mm (25.4mm=1 inch): 53 mm long by 33 mm wide on a 150 mm by 80 mm matrix

Location: Asery Horizon deposits of the Wolchow River region near Saint Petersburg, Russia

Code: RUT819

Price: $175.00 - Sold


Description: Coming from the Middle Ordovician Asery Level deposits of the Wolchow River region near Saint Petersburg, Russia, this is an example of the trilobite Asaphus kowalewskii. Its caramel-colored Calcite shell is well set off by the white limestone matrix. The genus Asaphus underwent some remarkable adaptations to changes in turbidity during the Ordovician, with this one presumably arising in a time of increased turbidity. One thought is that the trilobite may have lain in wait for prey buried in the bottom sediment with only its 17mm periscope eyestalks protruding. As always, the skillful Russian preparators have shown this fine specimen to best advantage, well positioned on its limestone matrix which has a flattened base for an alternate display.

EDCOPE Enterprises Purchase

click to enlarge

 

 


Fossil Mall Navigation:

l Home l Fossils for Sale Map l Museum and Rare Fossils l How to Buy Fossils l

Navigate by Fossil Store:
l EDCOPE Enterprises l Western Fossils l Stonerelic l
l Pangaea Fossils l Primal Extincts l

Navigate by Fossil Category:
l Fossil Amber l Ammonites l Dinosaur and Reptile Fossils l
l Crinoids and Echinoderms l Fish Fossils l Insect Fossils l Invertebrate Fossils l
l Plant Fossils l Stromatolites l Trace & Ichnofossils l Trilobites l
l Russian Trilobites l Vertebrate Fossils l Fossil Kits l

Fossils & Science:
l Science Section l Paleobiology and Geological Timeline l The Fossil Dealers l