Dusting for Prints from a Fossil Fish to Understand Evolutionary Change
Science & Technology

Dusting for Prints from a Fossil Fish to Understand Evolutionary Change

In 370 million-year-old red sandstone deposits in a highway roadcut, scientists have discovered a new species of armored fish in north central Pennsylvania. Fossils of armored fishes like this one, a phyllolepid placoderm, are known for the distinctive ornamentation of ridges on their exterior plates. As with many such fossils, scientists often find the remains … Continue reading