Paralititan

And now the largest inhabitant of the Bahariya ecosystem, Paralitian stromeri, a maybe 23 m long titanosaur, heavy enough to crush the tank of Arnold Schwarzenegger, big enough to impress... everyone, and maybe defensive looking enough to let even a few Aegyptosaurus peacefully graze in its shadow.

This old bull with many scars and a healed fracture in the tail could be the specimen which Smith ET AL. published 2001 

For this picture I used mostly 's skeletal drawing/description as a reference: 


Edit: oh and maybe this is a bit more pleasing for your eyes than the "knightian" apatosaurs from JW