Reunite Pangea! https://thepangeamap.com (you can put Diplodocus on the timeline and see a projection of what the map was then)

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So according to this map, North America was separated from Spain by a body of water when Diplodocus was alive?

Looks like there was a land-bridge to "Europe" around the Jurassic-Cretaceous boundary if you stick it in Paleotopography mode.

(I like that mode better because it appears to show the actual landmasses at the time vs the plates with an approximation of the modern masses overlayed)

Found another page with lots of interesting maps and visualization that seems hand/human made: https://earthathome.org/hoe/sc/geologic-history/

In the "Triassic to Jurassic (252 to 145 million years ago)" section further down, there is this image, which I think shows a kind of land bridge between the two continents: https://earthathome.org/wp-content/uploads/2021/11/North_Ame...

Oh wow! Now that's a cool site!