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I know that it’s been a while, but here is my latest addition of paleo-art to this blog. Behold – Alamosaurus, a behemoth of a sauropod that roamed Texas during the late Cretaceous Period. Alamosaurus was a member of the “titanosaur” family, which is more well-known from species found in South America, Europe, and Africa. No complete skeleton of Alamosaurus has ever been found, so we only have a rough idea about what it looked like, and we’re not even sure how big it was when it was fully grown. The most common estimate that I’ve seen is that it was somewhere around 65 – 70 feet long, but it might have been bigger than that.
Because no complete specimen of Alamosaurus has been found, you’re going to see a lot of variation in paleo-art reconstructions of this animal. From what I’ve gathered, a lot of the pictures that are visible on the internet these days are inaccurate. Alamosaurus had a massively thick neck, but its tail was not correspondingly long or massive. The presence of osteoderms along its back are a guess, since other titanosaurs, notably Saltasaurus, were known to have had them.
Recently, an international group of scientists have discovered the first ever dinosaur fossils from Saudi Arabia, consisting of a few sauropod vertebrae and some theropod teeth. Both finds date to the late Cretaceous Period, approximately 72 MYA.
For much of the Mesozoic Era, most of the Arabian Peninsula was underwater. During the late Cretaceous, this area would have likely been a coastal habitat.
It is unclear which species these fossils belong to. The sauropod vertebrae may belong to a titanosaurid, and the theropod teeth are confirmed to have belonged to an abelisaur. Aside from that, it’s anyone’s guess.
- “First Dinosaurs Identified from Saudi Arabia”. http://www.sciencedaily.com/releases/2014/01/140107092829.htm
This was a drawing that I made to accompany my “Tyrannosaurus rex head” drawing. It shows a pair of T. rexes pursuing and attacking an Alamosaurus. This is something that is rarely seen in Tyrannosaurus paleo-art. Usually, the large carnivore is seen attacking a Triceratops or a hadrosaur. I’ve only seen a handful of examples where a T. rex is attacking an Alamosaurus. Alamosaurus was a titanosaurid sauropod which inhabited the southern part of North America during the Late Cretaceous. As far as I am aware, it was also the only sauropod existing in North America during this time. Contrary to what nearly everyone thinks, it is NOT named after the Alamo in Texas, but this is a side-point. I wanted to “raise the population”, so to speak, of illustrations depicting a clash between these two large North American dinosaurs. I hope you enjoy it.