Order Asaphida, Suborder Asaphina, Superfamily Asaphoidea, Family
Geologic Age: Lower Ordovician
is 40 mm long
Table Head Formation, Random Island, Newfoundland, Canada
Remarks: This is a very rare trilobite. So rare, you are unlikely to see
a picture of another. The genus Niobella is more commonly seen from the
lower Ordovician near Saint Petersburg, Russia.