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 North America. Fossils were found in New Mexico. It is believed that Alamotyrannus lived about 70 million years ago.
**Alan the Dinosaur**
A vertebra found in England is nicknamed “Alan the Dinosaur.” This fossil dates back to about 176-172 million years ago. It is the oldest known sauropod found in the UK and is currently on display in a museum.
**Allosaurus robustus**
This name was given to a specific leg bone found in Australia. Scientists have debated its classification, but it might belong to a group of carnivorous dinosaurs. The original findings about this dinosaur were done in the early 2000s.
**Baguasaurus**
This name refers to a yet-to-be-described sauropod from Peru, believed to be around 12 meters long. It is based on some vertebrae mentioned in an earlier study but still lacks formal description.
**Barackosaurus**
An informal name used for a sauropod found in the Morrison Formation in Wyoming. Its fossils suggest it was very large, around 20 meters long. However, further studies have raised doubts about the name’s validity.
**Andhrasaurus**
An informal name given to a dinosaur discovered in India. It has been noted that the fossils do not meet the requirements for formal naming yet.
**Gallimimus mongoliensis**
An almost complete skeleton has been unearthed in Mongolia. Its relationship to other species is under question, and so far it has not been properly classified.
**Ubirajara**
This name was created for a dinosaur found in Brazil. It gained attention because the fossil was smuggled out of Brazil. Even though it was named, it hasn’t been officially described due to its status.
**Kapiasaurus**
This genus name was proposed for remains found in the Late Cretaceous of Kazakhstan. The fossils have not yet been classified correctly owing to a lack of detailed study.
**Cinizasaurus**
This dinosaur has been given an informal name based on partial remains found in New Mexico. It was introduced in a thesis but has not been published as a formal name.
These informal names help researchers keep track of dinosaurs that haven’t been fully studied yet. Naming them informally allows scientists to communicate about these ancient creatures while paving the way for future research, which may lead to their formal naming and classification.