Posted by John S. Wilkins on October 2, 2006 12:00 AM

Students are often overwhelmed by the number of species concepts cited in the literature. Here is a working list of species concepts presently in play. I quote “Concepts” above because, for philosophical reasons, I think there is only one concept - “species”, and all the rest are conceptions, or definitions, of that concept. I have christened this the Synapormorphic Concept of Species in (Wilkins 2003).

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