Nature · 1998 · 183 citations · 19 references
Evolutionary BiologyBiostratigraphyCambrian SedimentsCretaceous Period
19
Calibrating Rates of Early Cambrian Evolution
Samuel A. Bowring, J. P. Grotzinger, C. E. Isachsen et al. · Science · 1993 · 530 citations
The fossil record and the early evolution of the Metazoa
Simon Conway Morris · Nature · 1993 · 403 citations
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