Global catastrophes in earth history : an interdisciplinary conference on impacts, volcanism, and mass mortality / edited by Virgil L. Sharpton, Peter D. Ward.
Extinction (Biology) -- Congresses.
Cretaceous-Tertiary boundary -- Congresses.
Volcanism -- Congresses.
Impact -- Congresses.
Sharpton, Virgil L.
Ward, Peter Douglas, 1949-