The miner's canary : unraveling the mysteries of extinction

On Methuselah's trail : living fossils and the great extinctions

The end of evolution : on mass extinctions and the preservation of biodiversity

Rivers in time : the search for clues to earth's mass extinctions

Extinction : bad genes or bad luck?

Dying planet : the extinction of species

Extinct, extant, extripated, or Historical? : or in defense of historical species.

The Late Devonian mass extinction : the Frasnian/Famennian crisis

The ghost with trembling wings : science, wishful thinking, and the search for lost species

The evolution and extinction of the dinosaurs

The great Paleozoic crisis : life and death in the Permian

Dinosaur extinction and the end of an era : what the fossils say