Skip to Main Content
Skip Nav Destination

Although species are the basic units of many paleontological and evolutionary studies, the term “species” applied to the fossil record does not convey the same concept to all workers. Simpson’s “evolutionary species” incorporated time into the species concept, but considered each non-branching lineage as a separate species; longer lineages with more continuous fossil records may require subdivision into successional species. One’s perception of paleontological species affects, and is affected by, evolutionary philosophy and models of how new species form and evolve. For example, if species actually arise abruptly and persist for much longer periods essentially unchanged (punctuated equilibria), discrimination...

You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Figures & Tables





Citing Books via

Close Modal

or Create an Account

Close Modal
Close Modal