Robert sent in a link … the surprising truth about velociraptors – go to https://www.youtube.com/watch?v=SaqZ35jKAM8 …. which is actually a creationist source. So, could the velocirptor be an extinct type of bird? What would this mean for true dinosaurs? Robert goes on to say, from my research, I’ve noticed both creationist and consensus palaeontologists have one thing in common. Both ignore the fact that the very large sauropod type dinosaurs would be unable to exist under earth’s gravity – as it is today. This was recognised years ago. In old dinosaur books you will always see sauropod type dinosaurs immersed in water, usually some kind of lake. This idea was dropped in the 1980s, he suggests, when fossilised footprints were found. They obviously trundled around on the land. It was also realised that sauropod foot and leg structure would lead to the animals sinking and becoming trapped in soft sediments at the bottom of the imagined lake – or body of water. The gravity and weight problem disappeared shortly thereafter.
However, putting my thinking cap on there may have been something else to make paeontologists think the sauropods liked to wade in the water. The so called interior seaway – a former body of water that now sports a lot of dinosaur fossils. Many of them mangled and broken.Most of them in fact. It would have been natural to think sauaropods lived in the water if where they were found was assumed to be an actual body of water running up the centre of North America. Another way of interpreting this, relying on the laying down of sediments quickly at the impact of the Chicxulub asteroid, would be they were overwhelmed by a huge tsunami wave in the aftermath of the strike.