Complex sentence: An archaeological excavation led by Dr. Carl Gustafson of Washington State University found a rib bone that had what appeared to be a spear point made from the bone of a different mastodon embedded in it.
Split into simpler sentences: An archaeological excavation led by Dr. Carl Gustafson of Washington State University. Found a rib bone that had what appeared to be a spear point made from the bone of a different mastodon embedded in it.