Committee on Recently Extinct Organisms (CREO)
CREO's mission is to foster an improved understanding of species' extinctions that have occurred in recent times.
creo.amnh.org/   reviews

Bagheera: In the Wild: Extinct
An overview of extinction, and information about individual species that have become extinct.
www.bagheera.com/inthewild/extinct.htm   reviews

A Mathematical Model for Mass Extinction
Synopsis.
www.lassp.cornell.edu/newmme/science/extinction.html   reviews

Mass Extinctions
A brief discussion of mass extinctions, and information about the Vendian Mass Extinction and Mass Extinctions of the Phanerozoic. (Precambrian, Cambrian, Ordovician, Devonian, Permian, End-Cretaceous, and Holocene.
park.org/Canada/Museum/extinction/massextinc.html   reviews

Extinction
Extinction You are visitor number since 18 June 1999 These are lecture notes from an experimental non-majors biology class taught in 1995 by Bruce Walsh, University of Arizona. Other lectures of potential interest: Origins of life Cosmic impacts and life on Earth Genetics class lecture notes Extinction 99.9% of all species have become extinct Without extinction, we would not be here Mass ...
nitro.biosci.arizona.edu/courses/EEB105/lectures/extinction/extinction.html   reviews