Asaphellus toledanus Trilobite from Portugal

Asaphellus toledanus

Trilobites Order Asaphida, Family Asaphidae

Geological Time: Ordovician

Size (25.4mm=1 inch): Trilobite is 62 mm ( 2 7/16” ) on a 9 cm x 12 cm ( 3 ¾" x 5 5/8”) plate

Fossil Site: Valongo Formation, Covelo, Portugal

Fossil Code: PFT189

Fossil Price: $275.00


AsaphellusDescription: Valongo trilobites are easily recognized by their ghostly appearance. They are normally compressed, distorted, and the matrix has a slatey appearance. This positive and negative specimen is no exception. It is part of a small batch of large and well-preserved specimens that I just procured. Asaphellus toledanus is also one of the less common species from the Valongo. For the aforementioned reasons, these are amongst some of my favorite trilobites. This formation is a monotonous succession of marine silty mudrocks transformed into dark slate by low regional metamorphism.

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