Description

Mollisonia sp.
Late Cambrian
Weeks Shale Formation
House Range, UT, USA

Rare 0.6 inch soft-bodied arthropod. Resembles unnamed species described in Conway Morris, S et al. 1988 Univ Kansas Pal Inst. paper 122

Arthropod.

The Weeks Formation has yielded so many odd fossils, especially arthropods.  Here is a specimen hinting at the presence of an unknown lineage that might have existed only during the Cambrian.