SauropodomorphaTitanosauria

Dreadnoughtus schrani

Dreadnoughtus schrani skeletal reconstruction, left lateral view, reconstructed length ~21 m.
Scale bar = 1 meter
Taxon
Dreadnoughtus schrani Lacovara et al., 2014
Reconstructed length
~22.5 m (74 feet)
Body mass
~33.6 t
View
Left lateral
Drawing
© Scott Hartman
Drawn
2010, revised 2022
Clade
  1. Sauropodomorpha
  2. Sauropoda
  3. Neosauropoda
  4. Macronaria
  5. Titanosauria

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Dreadnoughtus was a large titanosaur from the Late Cretaceous of Argentina. Like most titanosaurs it had a long, upright-sloping neck and a medium-length (for a sauropod) tail. At the time it was found, Dreadnoughtus was the most complete large titanosaur known. Highly-detailed 3d scans of the specimen have been published, providing excellent documentation of what the skeleton looks like.

At around 22.5 meters (70 feet) and 34 tonnes, Dreadnoughtus was a huge animal (roughly 5 large bull African elephants in size!), but it was neither as long as most diplodocids, nor as heavy as the largest titanosaurs, like Argentinosaurus or Patagotitan.

The evidence

What the specimen actually preserves

Known skeletal material of Dreadnoughtus schrani — elements preserved in the specimen drawn in white against a black body silhouette.
Known material: elements preserved in the specimen are shown in white; unpreserved regions are left as black silhouette. Drawn 2016, revised 2018