Very Rare Russian Ordovician Trilobite Pseudobaselicus planus

Pseudobaselicus planus

Geological Time: Middle Ordovician

Size: (25.4mm=1 inch): 90 mm long by 61 mm wide on a 145 by 120 mm matrix

Fossil Site: Vilpovitsy Quarry, Wolchow River Region, St Petersburg, Russia

Code: RUT907

Price: Sold


Russian Trilobite Pseudobaselicus planusDescription: Coming from the Middle Ordovician Upper Asery Level deposits near Saint Petersburg, Russia, this is an infrequently offered trilobite known as Pseudobasilicus (formerly Basilicus) planus, betrayed as such by the genal and pleural spines. This trilobite is rarely offered, and would make a key acquisition to any collection. The caramel-colored Calcite shell is quite evidently in a good state of preservation, with the trilobite dominating the parallelogram-shape bed of limestone matrix. Its broad, low profile was the source of the generic name planus, probably allowed it to escape detection by both predator and prey alike as it sat on the sea floor.

Also see: Russian Trilobites

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