Pohlsepia mazonensis, a cephalopod species first described in 2000 from a 300-million-year-old specimen and featured in the Guinness Book of Records as...
First published in 1865 as a caterpillar, nearly fifty years before the discovery of Canada’s Burgess Shale, Palaeocampa anthrax shuffled between classifications...
The forests of the Late Carboniferous period (about 300-320 million years ago) harbored a great variety of arachnids. In addition to the familiar spiders,...
