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Dino Codex
DreadnoughtusAI image
AI imageCreated with GPT Image 2 by OpenAI on Oct 31, 2026

Match with prompt

100% (6/6 items)

See the checklist, prompt and sources
  • ✓Huge sauropod about 26 m long with a broad body
  • ✓Long neck held horizontal or slightly raised
  • ✓Pillar-like legs, front feet without claws
  • ✓Whole animal visible in side view
  • ✓Scene matches the period and the fossil site
  • ✓No text, people or modern objects

Checked by Claude Opus 5.5 (checked item by item from the image) on Oct 31, 2026. The score is the share of checklist items the image gets right; it is not an expert scientific review.

Prompt used to create the image

Scientifically accurate paleoart of Dreadnoughtus, a herbivore Titanosauria dinosaur from the Campanian to Maastrichtian ages of the Late Cretaceous (about 76–70 million years ago). A huge sauropod about 26 meters long with a broad, wide body. Reference: Dreadnoughtus is a genus of titanosaurian sauropod dinosaur containing a single species, Dreadnoughtus schrani. It is known from two partial skeletons discovered in Upper Cretaceous rocks of the Cerro Fortaleza Formation in Santa Cruz Province, Argentina. It is one of the largest terrestrial vertebrates known from reasonably complete remains, with the immature type specimen measuring 26 metres (85 ft) in total body length and weighing up to 48–49 metric tons. Anatomy: a long neck held roughly horizontal or slightly raised; pillar-like legs; front feet are columns without claws. Full body in side view, whole animal visible, standing in a Late Cretaceous temperate floodplain in southern Patagonia, Argentina, like the Cerro Fortaleza Formation, with conifers and ferns, no grass. Natural history museum illustration style, realistic textures and natural daylight, muted natural colors. No text, no labels, no humans, no modern objects.

Facts in the prompt come from Wikipedia (en) and Paleobiology Database

Dreadnoughtus

Name meaning: Meaning "fears nothing", after the armoured battleships of the early 20th century.

Herbivore

📏 About 26 m long, longer than two and a half buses.

📐 Compare its size with other dinosaurs →

Find it in a game

Dreadnoughtus was a giant titanosaur from Late Cretaceous Argentina, so big that hardly any predator would have dared attack a full-grown one.

Fun facts

  • Its fossils are among the most complete skeletons of any giant titanosaur, so its size can be estimated more reliably than that of giants known from only a few bones.
  • The individual found was still growing, so adults may have been bigger still.

Who lived alongside it

Dinosaurs found in the same rock formation as Dreadnoughtus (Cerro Fortaleza), so they lived in the same region at roughly the same time.

Formation data from the Paleobiology Database, counting only each genus's main formations. One formation can span hundreds of thousands to millions of years, so this doesn't mean any two of them ever met.

Scientific details

Classification
Sauropodomorph (long-necked)
Family
Unknown
When it lived
72.2–83.6 million years ago
Geologic stages
Campanian
Named by
Lacovara et al., 2014
Fossil occurrences
2 sites

Countries with fossils

  • Argentina

Data from Paleobiology Database and Wikidata