Western Canada and USA USA
San Juan Island (Washington State
Geological Time: Cretaceous Upper Cretaceous Turonian
the SEM image is provided by Dr.
View of a specimen of Pessagnoina simplex (Morrow, 1934)
the identification may differ from that on WoRMS and is based on the publication mentioned below
The identification is based upon:
Georgescu, Marius D., 2009: