A nice and very rare sample from the famous Walcott-Rust Quarry in the state of New York. The lower part of the matrix was taken from the same stone and is reattached on the piece to give it a good scraped matrix. Also the lower ends of the pygidial spines are restored but not colourised for aesthetic aspects. External Link : The Walcott-Rust Quarry | |||
Location: | Walcott-Rust Quarry, New York, USA | ||
Size: | about 13 mm long | ||
Age: | Upper Ordovician, Ashgill, Trenton Group (about 449 mill. y.o.) |