Here’s my talk on the Cambrian from Skepticon 6.
Oh, hey, I just realized I could post the content of that text-heavy slide I flashed, showing the sources I used. So here you go:
Briggs, D.E.G.; Fortey, R.A. (1989). The early radiation and relationships of the major arthropod groups. Science, 246(4927), 241-243.
Budd, G. E., and S. Jensen. 2000. “A critical reappraisal of the fossil record of the bilaterian phyla.” Biological Reviews 75:253-295.
Erwin D and Valentine J (2013). The Cambrian explosion : the construction of animal biodiversity. Greenwood Village, CO, Roberts and Company Publishers.
Marshall, Charles R. (2006). “Explaining the Cambrian ‘explosion’ of animals.” Annual Review of Earth and Planetary Sciences. 34: 355-384.
Smith MP, Harper DAT (2013) Causes of the Cambrian Explosion. Science 341:1355.
Long M, Betran E, Thornton K, Wang W (2003) The origin of new genes: glimpses from the young and old. Nature Rev Genet 4:865.
Knoll AH, Carroll SB (199) Early Animal Evolution: Emerging Views from Comparative Biology and Geology. Science 284:2129.
Erwin DH, Laflamme M, Tweedt SM, Sperling EA, Pisani D, Peterson KJ (2011) The Cambrian conundrum: early divergence and later ecological success in the early history of animals. Science. 334(6059):1091.
Peterson KJ, Dietrich MR, McPeek MA (2009) MicroRNAs and metazoan macroevolution: insights into canalization, complexity, and the Cambrian explosion. Bioessays. 31(7):736.