About Argentinosaurus
Biography coming soon.
Paleontological Comparison
Two titans: the heaviest ever known vs the North American giant.
Argentinosaurus huinculensis
Era: Mesozoic
Period: Late Cretaceous (Cénomanien–Turonien)
Diet: Herbivore
Region: South America (Argentine
Brachiosaurus altithorax
Era: Mesozoic
Period: Late Jurassic (Kimméridgien–Tithonien)
Diet: Herbivore
Region: North America (Colorado, Wyoming)
| Criterion | Argentinosaurus | Brachiosaurus |
|---|---|---|
| Length | 30–35 m m | 20–26 m m |
| Height | ~7 m m | ~9–13 m m |
| Weight | 65 000–80 000 kg t | 28 000–58 000 kg t |
| Era | Mesozoic | Mesozoic |
| Diet | Herbivore | Herbivore |
Verdict (physical categories)
Argentinosaurusleads (2/3)
Note: size is only one factor. Speed, bite force, intelligence and hunting strategy matter too.
Biography coming soon.
Biography coming soon.
Yes, clearly. Argentinosaurus huinculensis is estimated at 30-40 metres and 70-100 tonnes vs 21-26 metres and 30-50 tonnes for Brachiosaurus altithorax. Argentinosaurus is the most likely largest land animal in history. Brachiosaurus was taller (17 m vs ~14 m) thanks to its longer forelimbs.
Brachiosaurus altithorax lived in North America in the Late Jurassic (153-154 Ma), in the Morrison Formation (Colorado, Utah). Argentinosaurus huinculensis lived in South America (Patagonia) in the Late Cretaceous (~96-94 Ma). Separated by 60 million years and an ocean, they never coexisted.
Because its front legs are longer than its hind legs: the back rises toward the shoulder and carries the neck almost vertically. Argentinosaurus is far bigger — 30 to 35 metres against 20 to 26, and 65 to 80 tonnes against 28 to 58 — but held its neck closer to horizontal. Bulkier does not mean taller.
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