Earliest chitinozoans discovered in the Cambrian Duyun fauna of China Shen, C. ; Aldridge, R. J. ; Williams, M. ; Vandenbroucke, T. R. A. ; Zhang, X. -g. Abstract Publication: Geology Pub Date: February 2013 DOI: 10.1130/G33763.1 Bibcode: 2013Geo....41..191S