Most shark fossils are just teeth—their cartilage skeletons usually decay long before they can fossilize. But in northwestern Arkansas, a series of geological sites known as the Fayetteville Shale has ...
MINNEAPOLIS / ST. PAUL (01/12/2026) — A new study by researchers at the University of Minnesota Twin Cities challenges previous classifications paleontologists use to determine how the fossil record ...
How did soft-bodied organisms remain intact for millions of years?