Named Youti yuanshi, the newly-identified euarthropod species fills an important gap in our understanding of how the arthropod body plan originated and...
Paleontologists from the Nanjing Institute of Geology and Palaeontology at the Chinese Academy of Sciences and elsewhere have found a partial body fossil...
Marine biologists from the Scripps Institution of Oceanography at the University of California, San Diego, and the Centro de Investigación Científica...
Adorned with fins down the sides of its body, a distinct head with long antennae, massive jaw structures inside its mouth and growing to more than 30 cm...
Chaetae are stiff bristles made of chitin that characterize many species of annelid worms.
Reconstruction of Shaihuludia shurikeni from the Spence Shale...
The principal animal lineages diverged in the Cambrian period, but most diversity at lower taxonomic ranks arose more gradually over the subsequent 500...
