Hi, Bob. Here are a couple of resources I consult periodically. See whether they work for you. 1. The Paleomap Project by Christopher R. Scotese, http://www.scotese.com/ . Here you will find both static and animated maps of how the continents danced through deep time. Including maps for the early, mid and late Cretaceous. These maps are speculative, of course, but Scotese is on the case -- sieves new information. 2. Out of date, but on the right track and a classic: "Angiosperm Biogeography and Past Continental Movements" by and Peter H. Raven and Daniel I. Axelrod. Annals of the Missouri Botanical Garden vol. 61, #3, 1974. It's the entire issue. This is from the days when Raven was a young whippersnapper. It must be in many university libraries. You will also find it (and a lot else, often in a form hard to find and awkward to download) in the digital library of the MBG at http://www.botanicus.org/. Paige Paige Woodward firstname.lastname@example.org http://www.hillkeep.ca/ > I would be interested to > here more about your cretaceous woodland. I have been > looking for some information that both of you may know > but I have not been able to find. What I am looking > for are maps of the world going back to the time of > origin of flowering plants and to the present.