490-Million-Year-Old Arthropod Fossil Fills Puzzling Gap in Fossil Record
A new species of corcoraniid arthropod that lived during the Furongian epoch, between 497 and 487 million years…
500-Million-Year-Old Fossil Identified as Oldest Known Chelicerate
Paleontologists at Harvard University have described a large predatory arthropod from the Middle Cambrian of Utah featuring massive…