The Different Groups of Dinosaurs

This is a continuation of Classifications Made Easy


In my previous post, Classifications made easy, I listed all 59 main groups of dinosaurs (excluding Ornithischia and Saurischia, as these encompass all other groups), now I’m going to describe each of the main groups (not all 59 of them, just the classifications you’ll hear more often in palaeontology).


And I’ll start with Theropoda.


Therapoda: theropods are characterised by the fact that they walk around on two legs (there is a theory regarding Spinosaurus using it’s front limbs for walking as well but I’ll get to that in a spinosaur related post) and by being carnivores (for the kiddies, that’s a meat-eater). This group includes the famous Tyrannosaurus rex, the Velociraptor and the Mapusaurus, the largest terrestrial carnivore ever to live.


Sauropoda: sauropods are the elephants and giraffes of the dinosaur world, these are the big guys with the long necks. This includes Brachiosaurus, Brontosaurus (for a time called Apatosaurus, but that’s a thing for another post) and the gargantuan Titanosaurs.


Ceratopsia: if sauropods are the elephants and giraffes, these guys are the rhinos. All members of this species have a large frill at the back of the head and all most all of them have horns. The well known Triceratops is the face of this group.


Iguanodontidae: the most common herbivorous species of the Cretaceous were those from the hadrosaur family. Most species in this family boasted all manner of crests and could probably have made a wide variety of sounds too.


Last but not least, Ankylosauria: if dinosaurs ever made war, these would be the tanks. All members of this family bear natural body armor of some sort, some of them even have clubs of bone on the ends of their tails.


That’s that for the big groups that you’ll encounter the most, not only are these the most well known dinosaurs, but these are also among the most common or most interesting. In my next post I’ll be discussing time periods.

Until then, seeya.


Update, here is the link for Time Periods:


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