Extinction, escalation; Paleobiology of early Tertiary molluscs; Evolution of predatory gastropods

Tel: (360) 650-3648

E-mail: thorenet@cc.wwu.edu

Selected Publications

Hansen, T. A., 1992, The patterns and causes of molluscan extinction across the Eocene/Oligocene boundary: in Prothero, D. R., and Berggren, W. A., eds., Eocene/Oligocene Climatic and Biotic Evolution, Princeton Univ. Press, p. 341-348.

Hansen, T. A., Farrell, B. R., and Upshaw, B., 1993, The first 2 million years after the Cretaceous-Tertiary extinction: Rate and paleoecology of the molluscan recovery: Paleobiology, vol. 19, p. 251-265.

Kelley, P. H., and Hansen, T. A., 1993, Evolution of the naticid gastropod predator-prey system: An evaluation of the hypothesis of escalation: Palaios, vol. 8, p. 358-375.

Hansen, T. A., and Kelley, P. H., 1995, Spatial variation of naticid predation in the Eocene of North America: Palaios

Kelly, P. H., and Hansen, T. A., in press, Recovery of the naticid gastropod predator-prey system from the Cretaceous-Tertiary and Eocene/Oligocene extinctions: Geological Society of London.