One minor point onScott Horton's FAQ on pre-dinosaur history: true "mammoths" (Mammuthus, sp.) actually fit into the last interval (2My-present). Numerous mastodonts, gomphotheres and other proboscideans goe back to the Miocene, but not the elephants we call mammoths. David Schwimmer schwimm@uscn.cc.uga.edu