Complex sentence: In May 2013, construction at the I-15 and SR 76 interchange uncovered a "Bison latifrons" fossil; revisions to the interchange were finished in August 2013.
Split into simpler sentences: In May 2013, construction at the I-15 and SR 76 interchange uncovered a "Bison latifrons" fossil. Revisions to the interchange were finished in August 2013.