P.
W.
Signor
Lower Cambrian of southeastern Newfoundland: Epeirogeny and Lazarus Faunas, Lithofacies-Biofacies Linkages, and the Myth of a Global Chronostratigraphy, in: Lipps, J., Signor, P. (Eds.), Origins and Early Evolution of MetazoaPlenum Press, New York, New York. pp. 283-309.
, 1992.