Normally on here the word ‘archosaur’ is pretty much synonymous with ‘dinosaur’ and ‘pterosaur’, since that is primarily what I work on and what I am most interested in and thus know most about. However, there is the odd occasion when I can bring something different and a bit more generally archosaurian. So here is a mediocre photo of a mediocre specimen (though admittedly it is the holotype) of Sarcosuchus, the giant crocodilian for the North African Cretaceous. This specimen is on display in the fantastic Muséum National d’ Histoire Naturelle in Paris, a place well worth a few hours of anyone’s time, and is quite a small one at just 4m or so, these things got really big (though just how big is another question entirely).
Hmmmmmm…Sarcosuchus’ adult size is in question?
Well, the maximum size. Look at how hard it is to ascertain the maximum size of extant crocodilians and then wind that back to partial skeletons from the Cretaceous. Dmaned big, yes, but there are lots of numbers floating around and it’s hard to pick between them in terms of accuracy / possibility (not that I have looked into this in detail, though obviously I have a long standing interest in maximum sizes).