Benjamin Deniston (Benjamin.Deniston@gmail.com)
"Early Paleozoic radiations established stable ecosystem relationships, and thereafter only the great era-bounding mass extinctions were able to break patterns of incumbency, permitting the emergence of new community structures with distinct proportional diversity relationships."
[Richard Bambach, Andrew Knoll, and John Sepkoski; Anatomical and ecological constraints on Phanerozoic animal diversity in the marine realm, May 14, 2002; PNAS. ]
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