What was the biggest dinosaur ever discovered? Spoiler, it's not the T. Rex.

Dinosaurs began roaming the Earth during the Triassic period 230 million years ago, according to the United States Geological Survey. Dinosaurs lived all over Pangea, the original massive landform of the world, and eventually spread apart as the continents began to separate.

Various dinosaur species have been featured across popular media, From "Jurassic Park" to "The Land Before Time." According to the American Museum of Natural History, scientists have been able to discover over 700 species of dinosaurs. With so many species of dinosaurs discovered, what was the biggest dino to roam the Earth?

A Gorgosaurus dinosaur skeleton, the first to be offered at auction, at Sotheby's New York, Tuesday, July 5, 2022, in New York.
A Gorgosaurus dinosaur skeleton, the first to be offered at auction, at Sotheby's New York, Tuesday, July 5, 2022, in New York.

What dinosaur was the biggest?

According to a-z-animals.com, the largest dinosaur to exist was the Supersaurus.

Experts believe the Supersaurus to be between 105 and 138 feet long. Fossils of the Supersaurus have been found in both Portugal and Colorado. The dinosaur is estimated to have lived 153 million years ago.

State dinosaurs and fossils: Most states name an official dino. Here's yours.

Top 10 biggest dinosaurs

According a-z-animals.com, the top 10 biggest dinosaurs, by length:

  1. Supersaurus  105-138 feet

  2. Maraapunisaurus  99-131 feet

  3. Argentinosaurus  98-115 feet

  4. Patagotitan  102-121 feet

  5. Ruyangosaurus  81-115 feet

  6. Diplodocus  89-115 feet

  7. Sauroposeidon  92-112 feet

  8. Puertasaurus  98 feet

  9. Antarctosaurus  98 feet

  10. Barosaurus  82-89 feet

Note that despite the Ruyangosaurus and the Diplodocus having near identical lengths and the Puertasaurus and Antartosaurus being the same length, both the Ruyangosaurus and Antarctosaurus weigh more than the Diplodocus and Puertasaurus, respectively.

What dinosaur is the smallest

According to Smithsonian Magazine, the Oculudentavis khaungraae is the smallest dinosaur ever discovered.

First discovered in  2020, scientists believed it was similar to a hummingbird. In 2021, upon further investigation it was discovered to be a small reptile.

According to Reuters, the size of the Oculudentavis khaungraae was estimated to be two inches long.

When did dinosaurs go extinct?: Theories and what survived

Just Curious for more? We've got you covered

USA TODAY is exploring the questions you and others ask every day. From "Who was Jack the Ripper?" to "How do I lucid dream?" to "How old is the oldest turtle in the world?", we're striving to find answers to the most common questions you ask every day. Head to our Just Curious section to see what else we can answer for you.

This article originally appeared on USA TODAY: What dinosaur was the biggest? Top 10 biggest dinos, plus the smallest