Pseudasaphus tecticaudatus Rare Russian Trilobite

Name: Pseudasaphus tecticaudatus (Russian Trilobites)

Class Trilobita; Trilobite Order Asaphida; Family Asaphidae

Geological Time: Middle Ordovician

Size: 51 mm long by 32 mm wide on an 105 by 75 mm matrix

Fossil Site: Wolchow River Region, Asery Horizon, St Petersburg, Russia

Pseudasaphus tecticaudatusThis is a a well inflated example of a scarce Asaphid named Psedasaphus tecticaudatus. The golden Calcite expskeleton is complemented by the white limestone matrix, with the trilobite shown in a slightly reflexed position. Some researchers believe this is actually a specicies of Leningradites. It certainly resembles that taxon quite closely, especially in the elongated, swept-back genal spines.

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