Nevermind that the authors got the age wrong by a factor of 1000! They thought it was 500,000 years old but they say Cambrian so I guess it is 500 million years old.
https://news.google.com/articles/CAIiEGCPp7KKbJYVK8AnXN7shMsqGQgEKhAIACoHCAowrq6BCzCw9PwCMMjF7gU?hl=en-US&gl=US&ceid=US%3Aen