Bristolia fragilis

  • Formation: Emigrant Pass, Carrara Formation California
  • Age: Cambrian
  • Size: 6 cms

Comments:

In this Bristolia fragilis you can see the long spine in the pygidium(3.4 cms), that measures a little more than the body(2.6 cms). In this formation of the Cambrian you can also find good examples of Olenellus, and Peachella iddingsi.