Dinosaur paleontologists use the same name classification system used in biology. The Linnaean hierarchy, established by swedish naturalist Carolus Linnaeus in the 18th century, is used for all extinct and living organisms.
Carolus Linnaeus (1707-1778) developed this system in an attempt to delineate the “created kinds” referred in the book of Genesis chapter one. He believed that there could be limited variation within a kind but the kinds could not change from one kind to another. Carolus Linnaeus was a creationist and a genius. Interesting note, he earned his doctorate in medicine in less than two weeks at the age of 28. In 1753, he published his two-volume 1,200 page book titled, “Species Plantarium”, which established the modern binomial (two-name) system for living organisms.
Dinosaur nomenclature (names) are fairly easy for naming new dinosaurs. For example paleontologists digging in Madagascar found a new dinosaur. The named it Masiakasaurus knopfleri, which means “vicious lizard knopfler”, for singer/songwriter Mark Knopfler of the band Dire Straits, which the scientists were listening to as they dug and made the discovery. Another team of researchers found a dinosaur skull with spiky, dragon-like horns in South Dakota’s Hell Creek Formation. They named the creature Dracorex hogwartsia in honor of the school in the famous Harry Potter books by J. K. Rowling. So naming new dinosaurs one merely looks down a list of Greek and/or Latin words and finds one that describes a particular feature about the new specimen. Tyrannosaurus rex for example. “Tyranno” means “tyrant”, “saurus” means “lizard’ and “rex” means “king”. Another thing about Tyrannosaurus, it is improper to use “rex” alone. The dinosaur must be called Tyrannosaurus rex or T.rex. It is also scientifically improper to use hyphens in the names, such as with T-rex. So Tyrannosaurus rex means “tyrant lizard king”. These two names are the genus and the species of the animal. The genus is capitalized and the species is not. So Tyrannosaurus Rex would be improper.
Sir Richard Owen in 1841, developed the word for the whole of these creatures. He called them “dinosaurs” which means “terrible lizards”. This name for these creatures has become a household word for children and adults for generations.
If you ever go to the Carnegie Museum of Natural History in Pittsburgh, Pennsylvania, there is two sauropod dinosaurs in the exhibit “Dinosaurs in Their Time”. They are Diplodocus carnegii and Apatosaurus louisae. Diplodocus means “double beam” ( because the sauropod had two parallel rods arranged in a mirror image fashion as chevrons along the underside of the tail), carnegii (name in honor of Andrew Carnegie, the one who financed the expedition). Apatosaurus means “deceptive lizard” (a good name for this dinosaur because for the longest time it had the wrong skull and was called Brontosaurus), louisae (name in honor of Andrew Carnegie’s wife Louise).