Sauropod swimmers or walkers?

An international team of scientists, led by the China University of Geosciences in Beijing and including palaeontologists from the University of Bristol, has shed new light on some unusual dinosaur tracks from northern China. The tracks appear to have been made by four-legged sauropod dinosaurs yet only two of their feet have left prints behind.

archosaur – Nix Illustration

Behemoth can't be a Sauropod! Or can he? - Talk Genesis

Digit-only sauropod pes trackways from China – evidence of swimming or a preservational phenomenon?

Speedy' the Sauropod by PaleoPastori on DeviantArt

A Dinosaur A Day — Saturnalia tupiniquim

Are there any swimming or diving dinosaurs, like otters or seals? - Quora

Could sauropods swim?”

Did sauropods swim? - Quora

Melody meets a Swimming T. Rex by Bvega41 on DeviantArt

Spinosaurus is not an aquatic dinosaur

Could large reptiles such as Stegosaurus or Allosaurus swim if necessary? - Quora