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GEOGRAPHY

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Bio - Fauna

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Largest Extinct Animals

This list features the largest extinct animals on Planet Earth.

RANK

FAUNA

SIZE

1

Argentinosaurus

115 ft (35m)

2

Patagotitan

102 ft (31m)

3

Sauroposeidon

100 ft (30m)

4

Alamosaurus

100 ft (30m)

5

Brachiosaurus

90ft (27m)

6

Diplodocus

85ft (26m)

7

Spinosaurus

60 ft (18m)

8

Megalodon

60 ft (18m)

9

Titanoboa

42 ft (12.8m)

10

Tyrannosaurus Rex

40 ft (12m)


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References

Carpenter, K. (2006). "Brachiosaurus: A Unique Dinosaur." Paleontology. [Accessed 6 Jul. 2025] Deinosuchus, N. C. H. P. "The Cretaceous Crocodile." [Accessed 6 Jul. 2025] Fortelius, M. (2010). "Evolution of the large mammals." Paleobiology. (Paraceratherium) [Accessed 6 Jul. 2025] González, D. M., et al. (2017). "A new giant titanosaur." Nature. (Patagotitan) [Accessed 6 Jul. 2025] Head, J. J. et al. (2009). "Giant snakes from the Paleocene of Colombia." Nature. [Accessed 6 Jul. 2025] Haynes, C. V. (1991). "The Woolly Mammoth." Paleobiology. [Accessed 6 Jul. 2025] Holtz, T. R. (2004). "Tyrannosaurus rex: A New Look at the King of the Dinosaurs." American Museum of Natural History. [Accessed 6 Jul. 2025] Ibrahim, N. et al. (2014). "A new species of Spinosaurus." Science. [Accessed 6 Jul. 2025] Larramendi, A. (2009). "Estimation of the weight of the largest dinosaurs." Proceedings of the Royal Society B: Biological Sciences. (Argentinosaurus) [Accessed 6 Jul. 2025] McClendon, B. J. "Megalodon: The Mega Shark." Journal of Paleontology. [Accessed 6 Jul. 2025] Miller, I. (2008). "Giant Ground Sloths: Evolution and Extinction." Journal of Paleontology. [Accessed 6 Jul. 2025] Smith, F. A., & Betancourt, J. L. (2006). "The evolution of the short-faced bear." Paleobiology. [Accessed 6 Jul. 2025] "The Morphology of Diplodocus." Journal of Paleontology. [Accessed 6 Jul. 2025] Wedel, M. J. (2000). Journal of Vertebrate Paleontology. (Sauroposeidon) [Accessed 6 Jul. 2025] Wilson, J. A., & Carrano, M. T. (2010). "The Last of the Dinosaurs." Geology. [Accessed 6 Jul. 2025]
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