|Meaning of Name:||“iguana tooth”|
|Period:||Triassic Period (240 to 205 million years ago)|
|Size:||9 - 10 meters long|
|Weight:||4.5 - 5.5 metric tons|
|Location:||England, Belgium, Germany, Spain, South Dakota, Mongolia, Utah|
In 1822 an English woman, Mary Ann Mantell, found a large tooth that was determined to be from a large reptile unlike any previously identified. In 1842, paleontologist Sir Richard Owen named the creature dinosaur, which meant “terrible reptile” — terrible in the sense of awesome or formidable.