I am about to give a lecture on dinosaur palaeobiogeography here in Bristol and was tinkering with some data from the Paleobiology database (PBDB) and thought I'd upload the above image for your delectation.
The PBDB recently added two new data fields: palaeolatitude and palaeolongitude. I'm not entirely sure how these are done, but basically any fossil occurrence that has latitude and longitude data added also gets a palaeolatitude and palaeolongitude. Whilst preparing my talk I thought I'd stick up a world map with all of the dinosaur occurrences included on it, but decided to plot out the original positions too.
The above graph shows the modern location of each fossil locality (a light blue circle), it's original position (dark blue circle) and, so you can see how these link up, a red line connecting the two. The resulting image thus shows the 'tracks' along which the modern continents moved. (FYI: the graph was produced in R using the 'maps' library).
There are problems with this plot, however. There are three lines which are quite long and cross over other lines quite obtusely. The upper one of these (leading from the northeast of Russia to somewhere North of the Bering Strait is likely an artefact of drawing the plot on this particular projection. (In reality it should cross the Date Line and not wrap around the Earth in a whole different direction). The two others (the very southern line and the Japan-to-Atlantic line) are a bit harder to explain, but likely they are the result of some kind of error.
Still, I'm quite happy with it.