jointly sponsored by the Palaeontological Association, the Royal Society and the Linnean Society ; edited by M.J. Benton ; charts produced by Rachael J. WalkerChapman & Hallc1993
jointly sponsored by the Palaeontological Association, the Royal Society, and the Linnean Society ; edited by M.J. Benton ; charts produced by Rachael J. WalkerChapman & Hall1993