TRILOBITE GENERA AND SPECIES LIST
for Genera beginning with letter U

Ursinella (Eddy and McCollum, 1998)

Ursinella major (Eddy and McCollum, 1998)

Ursinella (Robison, 1964)

Ursinella marjumensis (Robison, 1964)
Ursinella sp.

Utia (Walcott, 1924b)

Utia curio (Walcott, 1924b)