Multiple trilobite fragments fossilized in the same rock

USNM_61523: Dated about 500 million years old and collected from the Pilgrim Limestone in Yellowstone National Park, is type trilobite Tricrepicephalus yellowstonensis (USNM 61523). This particular species is just one of over 20,000 described trilobite specimen in the fossil record. Every year new species of trilobites are being discovered all over the world.;
Megan Norr;
March 2016;
Catalog #20795d;
Original # USNM_61523