8 Most Important Dinosaurs that roamed the earth
Once upon a time in a galaxy far far away… wait a minute… actually right here on Earth, existed a reptile species now extinct called Dinosaurs.
We all heard stories about Lock Ness monster or of course the fossils of these immense creatures that called our planet “Home” a few million years ago.
In this article I will describe the most important and interesting Dinosaur species and hopefully by the end of the article you will have a pretty good idea of how they looked like, what they ate and other interesting facts we know at the moment thanks to scientists.
This huge dinosaur could be found in United states in the period known as Late Jurassic Epoch and was weighting from 22 to almost 30 Tonnes. Of course with this weight came the size that varied from 30 to 33 meters.
Believe it or not it’s diet was herbivorous, using it’s long neck to pick up leaves from very tall trees.
Fun fact: Seismosaurus was as tall as 4.66 giraffes and long as a Boeing 747-8. 🙂
The Eorapter was found in Argentina and is specific to the Late Triassic Epoch.
In comparison with Seismosaurus , this creature was much smaller (1 meter in lengh) and weighted between 10 and 14 Kg. Due to it’s size the Eoraptor was carnivorous. Interesting to know that it was one of the earliest dinosaurs that lives ~ 231 million years ano. Also we know that it was two legged bipedal.
Much similar with Eoraptor, the Podokesaurus can have aprox 0.9 meters, carnivorous but weighting much less, around 4.5 Kg.
The fossils were found in United States and are dated to Middle Jurassic Epoch.
Manidens is a dinosaur species original to CHina, herbivorous and weighting 5.7 tonnes.
It’s full lengh was 9.5 meters and the period in which we believe it lives was Early Cretaceous.
It is believed that this dinosaur was partly arboreal. Was also found that the feet were most similar to those of tree-perching birds.
Also found in United States the Agujaceratops was a herbivorous dinosaur weighting between 2.6 and 3.2 tonnes and having the length of 5 meters. It had features of rhinoceros as you will see in the picture.
It lived during the Late Cretaceous period in the place we call now Texas.
Mongolia was the home of the Texacephale during the Late Cretaceous Epoch. Small creature having a length of 2 meters and weighting 50 Kg. The name “Texacephale” means swollen head.
The fossilized dome on the animal’s head was believed to work as a helmet in fights to protect from damage.
The Paranthodon could be found in South Africa during the Early Cretaceous Epoch. Was herbivorous (700-900 kg) and 5 meters long. The maxilla of Paranthodon preserves the tooth row, and shows that there is little to no overhang. This differs from ankylosaurians, where there is a large amount of overhang of the maxilla. The teeth also have a middle ridge, with five fewer prominent ridges on either side. This is similar to the size ridges seen on Kentrosaurus.
The Gobivenator is specific in Gobi Desert (Mongolia).
Gobivenator is a troodontid, a group of small, bird-like, gracile maniraptorans. All troodontids have many unique features of the skull, such as closely spaced teeth in the lower jaw, and large numbers of teeth. Troodontids have sickle-claws and raptorial hands, and some of the highest non-avian encephalization quotients, meaning they were behaviourally advanced and had keen senses. Gobivenator possesses two autapomorphies, unique traits, that differentiate it from all other currently known troodontids. The parietal bones are fused with a pointed anterior end, and a fossa is present on the surangular of the lower jaw, in front of the rear surangular foramen. Two other traits are possible autapomorphies: the gracile build of the three postorbital branches and the elongation of the upper chevrons. Gobivenator has a total body length of approximately 160 cm, which is comparable to Saurornithoides in size. The skull of Gobivenator is very well preserved, and shows an enlarged maxillary fenestra and an anterior process of the lacrimal which is much longer than the supraorbital process, features that are typical among troodontids. Gobivenator provides detailed information on many aspects of the poorly-understood anatomy of Troodontidae, including the morphology of the palate, supporting close relations with the dromaeosaurids and basal birds, like Archaeopteryx. It appears that toward the basal Avialae the pterygoid bone of the palatine becomes more elongated, while the pterygopalatine suture becomes reduced. Even though the skull of Gobivenator is akinetic, it already possesses preconditions for later evolution of cranial kinesis in birds, like the loss of the epipterygoid bone and a reduced contact areas between palate bones.