title: Delimitating species in paleoanthropology.
abstract: Evolutionary biologists created a large twentieth-century literature about delimiting biological species. Paleontologists contributed the unique complications of deep time. Toward century's end, one participant wrote: "In all probability more paper has been consumed on the questions of the nature and definition of the species than any other subject in evolutionary and systematic biology."
authors.affiliation: Department of Integrative Biology and Human Evolution Research Center, The University of California at Berkeley Berkeley, CA, 94720, USA.
authors.forename: Tim D
authors.initials: TD
authors.lastname: White
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002965:Classification; D005580:Fossils; D010163:Paleontology
keywords: Middle Awash; evolution; hominid; paleobiology; systematics