Übersetzen...
Automatische Übersetzung:
Dorsal reconstruction of the bristly polychaete worm, Canadia spinosa, from the Middle Cambrian Burgess Shale of British Columbia. The feathery setae of this annelid worm are often well preserved as a silvery reflective film on the black shale matrix of the fossils. The length ranges from 2-4.5 cm.