Immense Medium-Eyestalked Russian Ordovician Trilobite
Asaphus cornutus

Asaphus cornutus

Trilobites Order Asaphida, Family Asaphidae

Size (25.4mm=1 inch): 133 mm long (curve measure) by 77 mm wide on a 135 by 77 mm matrix

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

Code: RUT879

Price: Sold

Asaphus cornutusDescription: A well-inflated example of a medium-eyestalked member of the Asaphidae, this is Asaphus cornutus. The region in which these trilobites lived was subject to dramatic changes in salinity and turbidity, and the trilobites were able to make rapid (geologically speaking) evolutionary adjustments. These adjustments were thought to be able to allow them to see both predator and prey more easily. This taxon derives its species name cornutus from the Latin for horned, referring to the eyestalks. This one is a very large example that displays well on this limestone matrix, a most impressive specimen, indeed.

Also see: Russian Trilobites

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