Acrocanthosaurus and Sauroposeidon by a River

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Today's new drawing or coloring page for you to print is 

Acrocanthosaurus - the largest Theropod of the Early Cretaceous Period.

Acrocanthosaurus and Sauroposeidon by a River

This is Acrocanthosaurus... in the foreground.  It was a very large Theropod that lived in what is now North America.  It lived all over the continent.  It lived in the early Cretaceous Period.  It grew to up to 38 feet or 11.5 meters long and weighed possibly up to 7.3 tons or 6.6 metric tonnes.  That made it smaller than Tyrannosaurus rex.  Of course, T. rex lived at the END of the Cretaceous Period so the two predators never would have met.   Acrocanthosaurus had spines on its vertebrae that gave it what is thought to have been a muscular sort of sail.

The other side of the river shows Sauroposeidon.  It was the tallest dinosaur.  It was around 60 feet or 18 meters tall. It was a type of Sauropod or long-necked herbivore.  It was also a type of Brachiosaur.  These two dinosaurs DID live at the same time in the same part of the world.  Sauroposeidon lived in what was once a delta of a river that went into what is now the Gulf of Mexico.  That is why the drawing shows the dinosaurs by a river.  It is estimated that Sauroposeidon was up to 112 feet or 34 meters long and weighed up to 66 tons or 60 metric tonnes.  So it was a very big animal!   It was probably the largest Sauropod in North America for its time.

The pterosaurs in the sky are Radiodactylus.  Although, in the distance, there is at least one other species of early Cretaceous Period pterosaur.  

NOTE:  This drawing is found in printable form by clicking on the button labeled "Paleontology."  Then scroll down to the bottom or near the bottom of the "Mesozoic" section.  This will work if you are accessing this site in late January to early February 2025.  If you are accessing it later then the drawing's title will be further up the list.