Stegosaurids

Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, predominantly in what is n...

Ornithischia

Ornithischia is an extinct clade of mainly herbivorous dinosaurs characterized by a pelvic structure similar to that of birds.

Thunder Lizards (Diplodocidae)

Diplodocidae are among the best known sauropod dinosaurs. Several species were described in the late 1800s or early 1900s from the Morrison Formation of North America. Since then, numerous additional speci...

Brachiosauridae
Brachiosauridae is a clade of titanosauriform sauropod dinosaurs that includes the well-known Late Jurassic taxa Brachiosaurus and Giraffatitan. However, there is disagreement over the brachiosaurid affinities of most ot...

Paralititan

Paralititan (meaning "tidal giant" was a giant titanosauriansauropoddinosaurgenus discovered in coastal deposits in the Upper CretaceousBahariya Formation of Egypt. It lived between 98 and 93 million years ago. It was calle...

Titanosaurids(Titanosauridae)
Titanosauridae is a group of macronarian sauropods comprised of more than 50 described species and achieved great evolutionary success during Cretaceous times.The titanosaurs were the last great group of s...

Sauropods (Sauropoda)
Amphicoelias,the largest land animal vs possible heaviest Bruhathkayosaurus
From left to right :Camarasaurus lentus, Giraffatitan brancai, Diplodocus hallorum, Spinophorosaurus nigerensis, Glacialisaurus hammeri, D...

And yet, who"s the biggest dinosaur!?

Let"s admit it. We all want to know which one was the biggest - which were the longest, tallest, heaviest. It doesn"t matter whether we"re talking about dinosaurs, mammoths, trilobites, or anyth...

Torvosaurus

One of the biggest fields of study regarding Torvosaurus is its supposed size and possible claim to being the largest known Jurassic era theropod dinosaur. Though known from only partial remains, fossils from the Morrison...

Tyrannosaurus rex,king of lizards tyrants or most fearsome scavenger in history of animals
Like other tyrannosaurids, Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to its large a...

Tyrannosauridae

Tyrannosauridae (or tyrannosaurids, meaning "tyrant lizards") is a family of coelurosaurian theropod dinosaurs which comprises two subfamilies containing up to eleven genera, including the eponymous Tyrannosaurus. The ...

Allosauridae

Allosauridae was a family of medium to large sized carnivorous theropod dinosaurs. Members included Saurophaganax, Allosaurus, and the poorly known Epanterias, which could well be a specimen of Allosaurus. Allosauridae was ...