Month: July 2025

Secernosaurus is an extinct genus of dinosaur that lived during the Late Cretaceous period, around 83 to 70 million years ago. This dinosaur was herbivorous, meaning it ate plants, and was part of a family called hadrosaurids, also known as duck-billed dinosaurs. Secernosaurus was discovered in what is now Argentina. Unlike most hadrosaurids, which were …

Scutellosaurus is a type of dinosaur that lived around 196 million years ago during the early Jurassic Period. Fossils of this small dinosaur have been found in what is now Arizona, USA. Scutellosaurus was a member of a group known as the Thyreophora, which includes dinosaurs that had armor or bony plates on their bodies. …

Scolosaurus is an extinct dinosaur that lived during the Late Cretaceous period, about 76 to 74 million years ago. This dinosaur was part of a group known as ankylosaurs, which were known for their bony armor and club-like tails. Scolosaurus was discovered in Alberta, Canada. The type species, called Scolosaurus cutleri, could grow as long …

Scleromochlus is an extinct group of small reptiles that lived during the Late Triassic period, around 235 to 205 million years ago. It was found in Scotland and is part of a larger category of creatures known as archosaurs, which also includes dinosaurs and crocodiles. The name “Scleromochlus” comes from Greek words meaning “hard” and …

**Sciurumimus: The Squirrel-Mimic Dinosaur** Sciurumimus is an extinct dinosaur that lived during the Late Jurassic period, around 150 million years ago, in what is now Germany. Its name means “squirrel-mimic,” which refers to how its tail resembled that of a tree squirrel. **Discovery and Fossil** Scientists discovered Sciurumimus from a single young dinosaur fossil found …

Scipionyx is an extinct genus of dinosaur that lived about 113 million years ago during the Early Cretaceous period. It was discovered in Italy, in a place called the Pietraroja Formation. The name Scipionyx means “Scipio’s claw,” named after the famous Roman consul and the ancient geologist Scipione Breislak. The only known fossil of Scipionyx …

Schleitheimia is a type of dinosaur that is now extinct. It lived during the Norian period, which was about 222 to 209 million years ago. Schleitheimia is part of the sauropod group, which includes some of the largest dinosaurs like long-necked sauropods. The name “Schleitheimia” comes from Schleitheim, the place where its fossils were found. …

**Scelidosaurus: The Limb Lizard** Scelidosaurus (pronounced “sell-i-do-sore-us”) means “limb lizard.” It was a type of dinosaur that roamed the Earth about 191 million years ago during the Early Jurassic Period. This dinosaur lived in what is now England when Europe looked quite different, with many islands. **Discovery and Naming** The first fossils of Scelidosaurus were …

Hyperodapedon is a fascinating group of reptiles that lived about 231 to 227 million years ago during the Late Triassic period. These reptiles belong to a group called rhynchosaurs, which are not dinosaurs but are related to them in a broader family of reptiles. Hyperodapedon was named by a scientist named Thomas Henry Huxley in …

**Scansoriopteryx: A Unique Dinosaur** Scansoriopteryx is a fascinating type of dinosaur that lived a long time ago, about 165 to 156 million years ago, during the Jurassic Period. This dinosaur was quite small, about the size of a sparrow. It was discovered from just a single young fossil found in Liaoning, China. Its name means …