1. Tracking the Red Queen – measurements of adaptive progress in co‐evolving simulations;Cliff D;Lecture Notes in Artificial Intelligence,1995
2. Evidence from a New Zealand snail for the maintenance of sex by parasitism
3. Survivorship Analysis of Fossil Taxa When Real-Time Extinction Rates Vary: The Paleogene Planktonic Foraminifera
4. Speciation and extinction asymmetries in paleontological phylogenies: evidence for evolutionary progress?;Pearson PN;Paleobiology,1998