Intro to Dinosaurs

As you might have guessed by now, I am starting to blog about Dinosaurs, a subject I know a lot about.
I will do my best to make this topic very interesting and fun to read.

Below will be my guide for the terminology used in my blogs henceforth :-

The two basic divisions of Dinosaurs:-
The two basic divisions are based on the dinosaur's hip joint structure.

source

Saurischia (saw-RIS-kee-a):-

Saurischia is derived from two Greek words:- (Sauros, meaning lizard and ischion meaning hip joint).

As you have just seen, Saurischian means lizard hip. It contains two basic species, Therapods and Sauropods(sauropodomorphs).

• Therapods are carnivourous dinosaurs, such as Tyrannosaurus rex and Spinosaurus.
• Sauropods are dinosaurs with long necks, such as Brachiosaurus and Diplodocus.

Ornithischia (or-ni-thiss-kee-a):-

Ornithischia is also derived from two Greek words:- (ornitheos, meaning of a bird and ischion, meaning hip joint). The confusing part is that birds are actually members of Saurischia. It contains three basic species, Thyreophera, Pachycephalosauridae, and Hadrosauridae.

• Thyreophera includes armoured dinosaurs like Stegosaurus and Ankylosaurus.
• Pachycephalosauridae includes domeheaded dinosaurs like Pachycephalosaurus and Stygimoloch.
• Hadrosauridae includes duckbilled dinosaurs like Parasaurolophus and Edmontosaurus.

*There are many subfamilies to the species mentioned above and many subfamilies to those too.