This is a beautiful trilobite of the species Triarthrus beckii from the Utica shale of New York. The Trilobite itself mesures about 28 mm. | |||
Location: | Indian Castle, New York, USA | ||
| Size Matrix: | about 46 x 57 mm | ||
| Age: | Oberes Ordovicium, Oberes Caradoc, Utica shale Formation. | ||