This Specimen has been sold.
Bolaspidella and Yuknessia Association
Here is a cool plate with a well preserved Bolaspidella housensis and associated algae all over the plate. . It contains a very nice specimen (see second photo) of Yuknessia, a very putative green alga known from the Burgess Shale. There are also several other trilobite fragments including another partial Bolaspidella and a small Asaphiscus pygidium.