This volume addresses major evolutionary changes that took place during
the Ediacaran and the Paleozoic. These include discussions on the nature
of Ediacaran ecosystems, as well as the ichnologic signature of
evolutionary radiations, such as the Cambrian explosion and the Great
Ordovician biodiversification event, the invasion of the land, and the
end-Permian mass extinction.
This volume set provides innovative reviews of the major evolutionary
events in the history of life from an ichnologic perspective. Because
the long temporal range of trace fossils has been commonly emphasized,
biogenic structures have been traditionally overlooked in
macroevolution. However, comparisons of ichnofaunas through geologic
time do reveal the changing ecology of organism-substrate interactions.
The use of trace fossils in evolutionary paleoecology represents a new
trend that is opening a window for our understanding of major
evolutionary radiations and mass extinctions. Trace fossils provide
crucial evidence for the recognition of spatial and temporal patterns
and processes associated with paleoecologic breakthroughs.