Edmontosaurus

## General

* Alt
* JP Institute

***Edmontosaurus*** is a genus of hadrosaur from the Late Cretaceous Period. Its name means ***Lizard from Edmonton***. There are two species of *Edmontosaurus*; *E. annectens* (the more well-represented species, found in the Hell Creek Formation in Montana, Wyoming, and North and South Dakota), and *E. regalis* (the less represented species, found in the Laramie Formation in Colorado).

## Paleontological Info

*Edmontosaurus is* a genus of ornithischian hadrosaur dinosaur from the Late Cretaceous Period, from the Maastrichtian zone, and lived in the Formation of Hell Creek, where it coexisted alongside the famous *Tyrannosaurus rex*, *Triceratops*, *Ankylosaurus*, *Mosasaurus*, *Pachycephalosaurus*, and *Stygimoloch*.

The majority of specimens belonging in *E. annectens* recovered from the Hell Creek Formation show that the species usually reached lengths of up to 40 feet long. However, at least two specimens at the Museum of the Rockies show that *E. annectens* can reach up to massive sizes, up to 50 feet (15 meters) in length, way larger than *Tyrannosaurus rex*. *E. regalis* specimens reached their maximum lengths up to the usual size of *E. annectens*. The key difference between the two species was that *E. regalis* had a fleshy comb, whereas *E. annectens* was not known to have a fleshy comb.

There were two synonyms of *Edmontosaurus*, ***Anatosaurus*** and ***Anatotitan***. Jack Horner has proposed this theory in 2004 that *Anatosaurus* and *Anatotitan* are *Edmontosaurus*. Even though the fact that *Anatosaurus* and *Edmontosaurus* are under the same genus does not mean they were the same species; in other words, *Edmontosaurus* became *E. regalis* and *Anatosaurus* became *E. annectens*, and *Anatotitan* was discovered to be synonymized into *E. annectens*.

*Edmontosaurus* remains were very widely spread across western North America, showing that they preffered coasts and coastal plains. Scientific evidence shows that *Edmontosaurus* was migratory, and moved in herds.

The skull of *Edmontosaurus* sported a keratinous duck bill, the top part of the bill projecting downwards a few inches past the lower part of the bill. Teeth were located in the maxillae and dentaries. Also, the teeth when they fell out, were replaced constantly with new teeth. Also, unlike other hadrosaurs, *Edmontosaurus* had a mouth that is capable of chewing. The body was large, with forelimbs sporting hoove-like hands with 5 digits, 3 being clawed, legs that sported 3-toed feet, a mainly quadrupedal stance that is capable of walking on hind legs, a large tail, and a series of scutes lining from the neck to the back.

## Cloning by InGen

### Unknown Dated Creation

4 *Edmontosaurus* was cloned on Isla Sorna for the original park. However, Hurricane Clarissa, caused all 4 individuals to escape. It is unknown what has happened to these three of these individuals as they were never seen in the 1997/2001 Incidents, while the fourth was killed by a pair of *Tyrannosaurus* and brought to their nest. If they did survive they would have been moved to Isla Nublar after the collapse of Isla Sorna's ecosystem.

### 2015 Jurassic World Incident

In Jurassic World, Masrani Global managed to clone *Edmontosaurus*, going by the species *E. Annectens*. They were kept in Gallimimus Valley, and lived there until the 2015 incident when the hybrid the Indominus rex escaped and her rampage forced the park to close.

#### After Jurassic World

Before or during this time, all cloned *Edmontosaurus* went extinct on Isla Nublar.

## Appearances

### Merchandise

* ***Jurassic World Website***
* ***Jurassic World Holoscape***
* ***Dinosaur Protection Group Isla Nublar Dinosaur List***

## Inaccuracies

* None (due to only source of image of *Edmontosaurus* from the ***Jurassic World Website***, as it is consistent with all of the accuracies of the real animal).

## Status

### Extinct

Until the DPG's announcement, it is unknown what happened to the original clones and the Jurassic World clones, but by 2018-2019, the Dinosaur Protection Group has detected and announced that all cloned members of the *Edmontosaurus*, both the originals and the ones by JW, has fallen back into extinction, thus eliminating all hope for the rescue and survival of the species from Mount Sibo.

Artwork by DPG