U of T researchers discover 507-million-year old sea creature

Tokummia katalepsis

Reconstruction of “Tokummia katalepsis” showing a pair of large pincers at the front for capturing prey with much of the multi-segmented body protected by a hardened shell (illustration by Lars Fields)

See Article in U of T News

See Article on CBC news | Technology & Science

Published in Nature Apr 26/17

Burgess Shale fossilsillustrate the origin of the mandibulate body plan (2017)