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Question
#1540. Jen
asks:
What was the most massive dinosaur on land?
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GohanDZ
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I believe that would be what is known as the 'Ultrasaur'.
Apr 19 00, 1:13 AM
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ryiannah_shrum
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As all that remains of the great dinosaurs are fossils, we have much fewer methods of estimating a dinosaur's weight when alive. The added mass of internal organs, muscles, horn coverings and the like are hard, if not impossible to properly determine from just bones.
That being said, the 'Ultrasaur' cannot be the most massive one. The dinosaur which is probably referred to, Ultrasauros, is actually defunct and was discovered to be a case of mistaken identity regarding the combined bones of Seismosaurus and Brachiosaurus.
In the case of the most massive dinosaur, the exact species remains questionable but it most certainly is a Sauropod dinosaur, one of the more-popular long-necked types. Among the sauropods, the heaviest ones belong to the titanosaurid group.
Some contenders for the top spot are: Bruhathkayosaurus, Amphicoelias, Puertasaurus and Argentinosaurus. All of these titanosaurs have been estimated to possibly have reached 100 tons in weight.
Jan 01 07, 4:08 PM
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