Nanillaenus americanus

Formation: Walcott-Rust, New York.

Age: Ordovician.

Size: 2.7 cms

Comments:

Scarce trilobite of this famous formation, the size is normal for the species Nanillaenus americanus, as you can see it has a large and robust cefalon, compared with the rest of the trilobite. Exemplary in very good state of conservation of this rare species.