505-million-year-old fossil of the “oldest” jellyfish discovered in the Canadian Rockies
Researchers Discover 182 Fossils of a 505 Million-Year-Old Jellyfish Species at Burgess Shale.Fossil of Burgessomedusa phasmiformis.Reconstruction of the jellyfish Burgessomedusa phasmiformis. (Photo: Christian McCall).The fossils of the oldest jellyfish species ...
