Giganotosaurus coloring pages

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Scroll down to see today's new drawings. 

Giganotosaurus was a huge Theropod

dinosaur that lived in South America in the

Mid-Cretaceous Period

It was about as big as a T. rex. 

In fact, Giganotosaurus was longer

than a Tyrannosaurus, but 

Giganotosaurus was more lightly built. 

It is thought that a full-grown T. rex

weighed around 31,000 lbs or

about 14,061 kg

Giganotosaurus was just slightly lighter at

around 30,000 lbs or 

about 13,608 kg. 

Giganotosaurus by a River

(This is new drawing so at the bottom of the list.  Click on "Paleontology" button up top
and then scroll to near the bottom of the list to find the printable drawing.)

I am impressed with the skull of Giganotosaurus.  Giganotosaurus was a member of a group of Theropods called Tetanurans.  Like all members of this group, Giganotosuarus had huge fenestra in its skull.  Fenestra are openings in bones that are natural.  So... not an opening caused by an injury, like a dinosaur bite.  Giganotosaurus had a huge fenestra in its skull, in front of the eye socket.  It also had a sizeable fenestra behind the eye.  These fenestra made Giganotosaurus have a huge skull that was very light.  You could call it evolutionary engineering.  

I was so impressed with this that I drew a Giganotosaurus skull tonight.  Here it is: 

Giganotosaurus Skull

(This is also a new drawing.  Notice the large fenestrae that make the skull much lighter.)

The printable versions of these drawings are found by clicking on the Paleontology button up at the top of this page.  Then scroll down to the bottom of the list of titles to get to these drawings.  Below is an older drawing I did a few years ago... of Giganotosaurus.

Giganotosaurus on the Prowl

Notice the huge Argentinosaurus in the background.  This was the prey species of Giganotosaurus.  It is interesting to note that Giganotosaurus did NOT have near as powerful jaws as a T. rex.  T. rex teeth are made for crushing bone, while Giganotosaurus teeth were made for slicing flesh.  It is thought that a pack of Giganotosaurus would maybe stampede a herd of huge Sauropods, (like Argentinosaurus) and then take bites off the legs or flanks.  Eventually, the huge Sauropod would bleed to death from the bites.  Or maybe the Sauropod would die of infection.