A is for Ankylosaurs

Ankylosaurs is a genus of armored dinosaur. Its fossils have been found in geological formations dating to the very end of the Cretaceous Period, about 68–66 million years ago, in western North America, making it among the last of the non-avian dinosaurs.

B is for Brachiosaurus

Brachiosaurus is a genus of sauropod dinosaur that lived in North America during the Late Jurassic, about 154–153 million years ago. It was first described by American paleontologist Elmer S. Riggs in 1903 from fossils found in the Colorado River valley in western Colorado, United States.

C for ceratosaurs

Ceratosaurs was a carnivorous theropod dinosaur in the Late Jurassic period. This genus was first described in 1884 by American paleontologist Othniel Charles Marsh based on a nearly complete skeleton discovered in Garden Park, Colorado, in rocks belonging to the Morrison Formation.

D is for Diplodocus

Diplodocus is a genus of diplodocid sauropod dinosaurs, whose fossils were first discovered in 1877 by S. W. Williston.

E is for Eoraptor

Eoraptor is a genus of small, lightly built, basal saurischian dinosaurs. One of the earliest-known dinosaurs, it lived approximately 231 to 228 million years ago, during the Late Triassic in Western Gondwana, in the region that is now northwestern Argentina.

F is for Fulengia

Fulengia is a dubious genus of basal sauropodomorph dinosaur from the Early Jurassic Lufeng Formation of China. The type species, F. youngi, was described by Carroll and Galton in 1977. It is a nomen dubium, and may be the same animal as Lufengosaurus. It was originally thought to be a lizard.

G is for giganotosaurus

Giganotosaurus is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 97 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993, and is almost 70% complete.

H is for herrerasaurs

Herrerasaurus was a genus of saurischian dinosaur from the Late Triassic period. This genus was one of the earliest dinosaurs from the fossil record. Its name means "Herrera's lizard", after the rancher who discovered the first specimen in 1958 in South America.

I is for iguanodon

J is for Janenschia

Janenschia is a large herbivorous sauropod dinosaur from the Late Jurassic Tendaguru Formation of Tanzania, Africa, 155 million years ago.

K is for kentrosaurus

Kentrosaurus is a genus of stegosaurian dinosaur from the Late Jurassic of Tanzania. The type species is K. aethiopicus, named and described by German paleontologist Edwin Hennig in 1915.

L for Lambeosaurus

Lambeosaurus is a genus of hadrosaurid dinosaur that lived about 75 million years ago, in the Late Cretaceous period of North America. This bipedal/quadrupedal, herbivorous dinosaur is known for its distinctive hollow cranial crest, which in the best-known species resembled a hatchet.

M is for Mammoth

A mammoth is any species of the extinct elephantid genus Mammuthus, one of the many genera that make up the order of trunked mammals called proboscideans. The various species of mammoth were commonly equipped with long, curved tusks and, in northern species, a covering of long hair.

N is for Neuquenosaurus

Neuquensaurus is a genus of saltasaurid sauropod dinosaur that lived in the Late Cretaceous, about 80 million years ago in Argentina and Uruguay in South America. Its fossils were recovered from outcrops of the Anacleto Formation around Cinco Saltos, near the Neuquén river from which its name is derived.

O is for Orodromeus

Orodromeus is a genus of herbivorous parksosaurid dinosaur from the Late Cretaceous of North America. Two species are known: O. makelai and O. minimus.

P is for Paralititan

Paralititan was a giant titanosaurian sauropod dinosaur genus discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt. It lived between 99.6 and 93.5 million years ago.