Order Proetida Superfamily Aulacopleuroidea Family Aulacopleuridae
Geologic Age: Early Silurian (Late Llandovery Stage)
is 8 mm long
Cotton Formation, Cottons Hill Quarry, Forbes, New South Wales, Australia
Comments: The genus is also known from the famous Barrandian trilobite
location in the Czech Republic, but is well displaced from those geographically
now. Also note the prominent sutures.