Here, You can find the drawing of the spinosaurus collection to color and print. Also, these spinosaurus coloring sheet is presented in a downloadable pdf format.
Spinosaurus lived in North Africa from the Lower Albian to the Lower Cenomanian of the Cretaceous period, approximately 112 to 93.5 million years ago.
Free Spinosaurus Coloring Pages
The Spinosaurus is a genus of carnivorous dinosaurs that included two species. The bones found, especially at the beginning of the 20th century, were more significant than the most known dinosaurs.
The Spinosaurus was characterized by having spines. These spines were born from their vertebrae and, together with their skin, formed a sort of “sail” that gave this giant a unique appearance.
According to studies and analysis of fossil remains found in North Africa, especially in Egypt, it is believed that Spinosaurus had a length ranging from 13 to 18 meters. Its weight was estimated at 9 tons.
Spinosaurus had a long, narrow skull similar to that of crocodiles and a narrow snout with conical teeth, characteristic of carnivorous dinosaurs.
The teeth of this powerful animal were distributed: 6 to 7 in the front part of the upper jaw, set in the premaxillary bones—another 12 teeth in both jaws.
Its second and third teeth, located in the upper jaw, stood out because they were longer than the rest. In front of the eyes of Spinosaurus, there was a small crest similar to that of Ceratosaurus.
The first fossil remains of Spinosaurus were found in Egypt in the first decade of the 20th century. Unfortunately, most of these remains were destroyed during bombing raids during World War II.
Based on some of the remains recovered and those found in more recent years, numerous theories have been developed about the size of this animal.
It was not until 2007, based on scale calculations made based on the cranial length, that the dimensions of Spinosaurus became more specific.
Over the years, these were adjusted, and with new findings, it was possible to determine – approximately – that the length of the skull was 1.5 meters and the total length was 15 to 18 meters.
These spinosaurids had long vertebral spines on their backs. The length of these spines was ten times longer than the vertebrae where they originated.
It is believed that the spines were joined together by a sail of skin and a height of 1.8 meters.
One of the most accepted theories indicates that these sails had the function of providing heat to the animal, warming the blood that circulated through it quickly by the action of the sun.
It is also considered that they acted by dissipating heat. Spines with similar characteristics were found in Ouranosaurus, a type of iguanontoid found in Niger.
Because of this, it is believed that the spines of these dinosaurs were the product of an adaptation to the region’s environmental conditions.