Paluxysaurus

{NOTE: "Paluxysaurus" is actually called Sauroposeidon.}

Sauroposeidon or "Paluxysaurus" is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the U.S. states of Oklahoma, Wyoming, and Texas

It was one of the tallest sauropods and lived 125-100 million years ago and was hunted by acrocanthosaurus. Few predators could attempt to attack a fully grown Sauroposeidon but its primarily the juveniles or possibly the sick and old ones that get targetted the most.

Sauroposeidon could reach 20-23 feet (at shoulder) and weigh 88,000 to 130,000 lbs. The first fossils classified as Sauroposeidon were four neck vertebrae found in rural Oklahoma. This falls within the Early Cretaceous Period, specifically between the Aptian and Albian epochs.