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.

Hundreds of giant dinosaur footprints found in Scottish lagoon

The First Swimmers: The Dinosaurs in the Water

Were Sauropods Wading in China? The Institute for Creation Research

A Dinosaur A Day — Saturnalia tupiniquim

Dinosaur record hi-res stock photography and images - Alamy

Study of sauropod tracks shows the dinosaurs had a gait unlike any creature alive today

Sauropod Tracks - Swimming or Walking Sauropods?

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

Were Sauropods Wading in China? The Institute for Creation Research

Sauropods may have been walkers or swimmers

BBC - Wonder Monkey: Evolution, sex and dinosaur necks