David DeMar Jr.

New Capabilities

As of September 2026: Co-author on the study

For the first time, scientists have found fossilized feathers inside dinosaur dung. The 66-million-year-old coprolite, unearthed in Montana, contains a wing feather, fluffy body feathers, bone fragments, and fish scales from an extinct aquatic bird called a hesperornithiform.

Updated Sep 27