Month: July 2025

Sinornithoides is a type of dinosaur that lived during the Early Cretaceous period, around 113 million years ago. Its name means “Chinese bird form,” which reflects its bird-like features. This dinosaur belonged to a family called Troodontidae and its full name is Sinornithoides youngi. It was about one meter long, which is roughly 3.3 feet. …

Sinopliosaurus is a type of ancient reptile that lived during the Early Cretaceous period, specifically in the Aptian and Albian stages. The name “Sinopliosaurus” means “Chinese more lizard.” This genus is a part of the larger group known as plesiosaurs, which were marine reptiles. Sinopliosaurus was discovered in China, and its specific age is not …

Here’s an overview of some fascinating dinosaurs that have been informally named but never formally described. These names help scientists talk about different types of dinosaurs, even if they don’t have a scientific name officially recognized yet. **Alamotyrannus** This is a placeholder name given to a type of tyrannosaurus from the Late Cretaceous period in …

**Sinocoelurus: A Unique Dinosaur** Sinocoelurus is a type of dinosaur that lived during the Upper Jurassic period, about 160 million years ago. Its name means “Chinese hollow tail,” which connects it to where it was found in China and relates it to another dinosaur called Coelurus from North America. **Discovery History** In 1942, a Chinese …

**Sinoceratops: The Chinese Horned Face** Sinoceratops is an extinct dinosaur that lived approximately 77.3 to 73.5 million years ago, during the Late Cretaceous Period. It was discovered in Shandong province, China, and was first named in 2010. The name “Sinoceratops” means “Chinese horned face,” which reflects its country of origin and its horn-like features. **What …

**Sinocephale: A Unique Dinosaur from China** Sinocephale is a genus of dinosaur that lived around 92 million years ago during the Late Cretaceous period. It was discovered in Inner Mongolia, China, and is part of a group of dinosaurs known as pachycephalosaurs, which are recognized for their thick, dome-shaped skulls. **What Does Sinocephale Mean?** The …

**Sinocalliopteryx: A Unique Dinosaur** Sinocalliopteryx (meaning “Chinese beautiful feather”) is an extinct genus of dinosaur known from the Early Cretaceous period around 125 million years ago. It was found in the Yixian Formation of China. **Size and Discovery** The first known specimen, named Sinocalliopteryx gigas, was described in 2007. This dinosaur measured about 2.37 meters …

Sinankylosaurus is a type of dinosaur that lived a long time ago, during the Late Cretaceous period, around 77 million to 73 million years ago. The name Sinankylosaurus means “Chinese fused lizard.” It was first discovered in China, specifically in the Shandong Province, in an area called the Hongtuya Formation. Sinankylosaurus is different from many …

**Similicaudipteryx** Similicaudipteryx is a type of dinosaur that lived during the Early Cretaceous period, around 124 to 120 million years ago. Its name means “similar to Caudipteryx,” which is another dinosaur known for its tail feathers. **Discovery and Naming** In 2007, scientists discovered a new type of dinosaur and named it Similicaudipteryx in 2008. The …

**Silvisaurus** Silvisaurus is a type of dinosaur that lived during the Early to Late Cretaceous period, around 104 to 93.5 million years ago. It is part of a group known as ankylosaurs, specifically the nodosaurs. The name Silvisaurus means “woodland lizard.” It is named because scientists believe it lived in a densely forested area. **Discovery** …