F106 – Richard D. Little Geology Collection

Sample ID F106 • Cabinet M

Bristolia bristolensis

7.49cm W x 1.05cm H x 5.94cm D • 36g

Sample Type	Fossil	Fossil Type	Altered hard parts		Mohs Hardness		4
Domain	Eukaryota	Kingdom	Animalia	Phylum	Arthropoda	Class	Trilobita
Order	Redlichiida	Family	Bicertopsidea	Genus	Bristolia	Species	bristolensis
Distribution/Period		North America, Lower Cambrian			Habitat	Marine
Preservation	Cast	Orig. Material?	NA	Relief	Positive Relief	Mineral Comp.	Potentially sandstone

Smaller specimen that has very prominent features. The head shield has two protruding spines that face backwards, and two on the front of the thorax that also point backwards. One large tail spine and many small thorax segments that also point backwards.