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Prehistoric Life

How long was Amargasaurus cazaui?

An adult Amargasaurus cazaui had a body length of about 10 m (33 ft).

What is measured: Adult sauropod, body length

Amargasaurus cazaui (10 m) drawn to scale beside a 20-foot shipping container (6.06 m) and a city bus (12 m)
Drawn to scale, from left to right: Shipping container (20 ft) (6.06 m), Amargasaurus cazaui (10 m) and City bus (12 m).

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How big is that, really?

  • A little shorter than a city bus
  • About 1.7× as long as a 20-foot shipping container
  • About 2 would fit end to end along a tennis court
  • About 5 would fit end to end along an Olympic swimming pool
  • About 5× the height of a doorway

Learn

Facts about Amargasaurus cazaui

Amargasaurus had two rows of exceptionally long neck spines, which may have supported a skin sail or display structure.

Source: Museo Argentino de Ciencias Naturales — Amargasaurus; Natural History Museum, London — Amargasaurus

Prehistoric Life

NameSizeCompared with Amargasaurus cazaui
Parasaurolophus walkeri9.5 m (31 ft)0.95×
Allosaurus fragilis9.7 m (32 ft)0.97×
Therizinosaurus cheloniformis10 m (33 ft)same size
Hatzegopteryx thambema10 m (33 ft)same size
Amargasaurus cazaui10 m (33 ft)this page
Tarbosaurus bataar10 m (33 ft)same size
Elasmosaurus platyurus10.3 m (34 ft)1×
Kronosaurus queenslandicus10.5 m (34 ft)1.1×
Deinocheirus mirificus11 m (36 ft)1.1×
Suchomimus tenerensis11 m (36 ft)1.1×

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