>>11538730
>i've definitely seen longer legged skeletons than that.
Those were fake bones added as guesses. We didn't find a Spinosaurus specimen with its legs or tail until quite recently.
Everything in pink is all we had of Spinosaurus during its initial discovery; the yellow is stuff that came from related species (Baryonyx and Suchomimus) that was misidentified as Spinosaurus. The stuff in blue is what was found recently as of 2022, and the stuff in white has never been found and is entirely guesswork based on what we know other members of its family looked like. Sadly, this is the reality behind most fossil reconstructions you see in museums - they're mostly guesses based on a few scattered fragments here and there, hence why they're constantly subject to change as new specimens containing previously unknown fragments are discovered.