A 500-million-year-old spider has claws where they shouldn’t
The fossils were completely unremarkable. That’s what Harvard University paleontologist Rudy Lerosey-Aubril thought at first when he was examining arthropod fossils from the Cambrian period (538.8 to 485.4 million years ago). Lerosey-Aubril says: Normal Science. Early arthropod specimens do not have claws like this. Instead, Cambrian arthropods often have antennae in that region. In other … Read more