What Was the Heaviest Extinct Animal? Facts About Argentinosaurus and More

Discover the heaviest extinct animal, Argentinosaurus, and learn how it compares to the massive blue whale in size and weight.

216 views

The heaviest extinct animal is believed to be the blue whale, Balaenoptera musculus, with some prehistoric individuals estimated to weigh up to 200 tons. While the blue whale is not extinct and currently holds the title for the largest animal living, the largest confirmed extinct animal is Argentinosaurus. A long-necked dinosaur from the late Cretaceous period, Argentinosaurus might not have matched the blue whale in weight but was among the heaviest land animals, with estimates up to 100 tons.

FAQs & Answers

  1. What was the heaviest extinct animal? The heaviest confirmed extinct animal is Argentinosaurus, a giant long-necked dinosaur from the late Cretaceous period, estimated to weigh up to 100 tons.
  2. Is the blue whale an extinct animal? No, the blue whale is not extinct; it is the largest living animal today and can weigh up to 200 tons.
  3. How does Argentinosaurus compare to the blue whale in size? Although Argentinosaurus was one of the heaviest land animals, it likely weighed about half as much as the blue whale, the largest known animal ever.

Watch More

Explore more fascinating insights into prehistoric giants and extinct creatures by checking out our videos on the biggest dinosaurs, marine megafauna, and evolutionary history of land animals.

  1. What Was the Largest Extinct Reptile? Discover Argentinosaurus Learn about Argentinosaurus, the largest extinct reptile that lived during the late Cretaceous period, measuring up to 100 feet and weighing 100 tons.
  2. What is the Largest Dinosaur? Discover Argentinosaurus Facts Learn about Argentinosaurus, the biggest dinosaur ever, reaching lengths of 100 feet and weighing around 100 tons.
  3. What Was the Largest Extinct True Crocodile? Discover Sarcosuchus Learn about Sarcosuchus, the largest extinct true crocodile, known as SuperCroc, which lived 110 million years ago and grew up to 40 feet long.
  4. What Is the Largest Reptile Ever Discovered? Discover the largest reptile ever: Shonisaurus sikanniensis, a 69-foot ancient marine giant from the Triassic period.
  5. What Was the Size of the Extinct Crocodile Deinosuchus? Discover the incredible size and weight of the extinct crocodile Deinosuchus, one of the largest crocodilians in history.
  6. Discover the Most Scary Extinct Animal: Tyrannosaurus Rex Explore why the Tyrannosaurus rex is considered the most intimidating extinct animal in history.
  7. What Was the Largest Crocodile-Like Reptile That Ever Lived? Discover Sarcosuchus, the prehistoric giant crocodile-like reptile that grew up to 40 feet long and lived 110 million years ago during the Cretaceous period.
  8. How Big Was the Largest Deinosuchus? Size and Facts Explained Discover the size and weight of the largest Deinosuchus, the giant prehistoric crocodilian from the Late Cretaceous period.
  9. What Was the Largest Ancient Crocodile? Discover Sarcosuchus Imperator Learn about Sarcosuchus imperator, the largest ancient crocodile known, measuring up to 40 feet and weighing 8 tons.
  10. What Is the Largest Crocodile-Like Dinosaur? Discover Sarcosuchus SuperCroc Learn about Sarcosuchus, the largest crocodile-like dinosaur that lived 112 million years ago, measuring up to 40 feet and weighing 10 tons.
  11. What Was the Largest Prehistoric Crocodile? Discover the SuperCroc Sarcosuchus Imperator Learn about the Sarcosuchus imperator, the largest prehistoric crocodile that lived 112 million years ago, growing up to 40 feet long and weighing 8 tons.
  12. What Was the Largest Species of Crocodile to Ever Exist? Discover Purussaurus brasiliensis, the largest crocodile species ever, which lived 8 million years ago and grew over 12 meters long.
  13. What Was the Largest Prehistoric Crocodile Ever Discovered? Discover Sarcosuchus imperator, the largest prehistoric crocodile, measuring up to 40 feet and living 112 million years ago in the Early Cretaceous.
  14. Discovering the Largest Dinosaur Egg: Hypselosaurus Learn about Hypselosaurus, the species with the largest dinosaur eggs measuring 1 foot long and weighing up to 15 pounds.