Article
Origin and rapid diversification of a tropical moss.
Evolution; international journal of organic evolution - 1 Jul 2005
Wall Dennis P
Abstract excerpt
Molecular sequences rarely evolve at a constant rate. Yet, even in instances where a clock can be assumed or approximated for a particular set of sequences, fossils or clear patterns of vicariance are rarely available to calibrate the clock. Thus, obtaining absolute timing for diversification of natural lineages can prove difficult. Unfortunately, without absolute time we cannot develop a complete understanding...
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