• ✓Very large sauropod about 27 m long, neck moderately raisedNothing in the scene for scale, so the 27 m size cannot be judged
• ✓Pillar-like legs, front legs as long as or slightly longer than hind legs, broad body
• ✓Tail held off the ground
• ✓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 28, 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 Nagatitan, a herbivore Euhelopodidae dinosaur from Aptian–Albian times (121.4–100.5 million years ago). A titanosauriform sauropod about 27 meters long, very large and heavy, with a long neck held moderately raised. Reference: Nagatitan is an extinct genus of euhelopodid sauropod dinosaur known from the Early Cretaceous Khok Kruat Formation of Thailand. The genus contains a single species, Nagatitan chaiyaphumensis, known from a partial skeleton. Nagatitan is a large sauropod, with an estimated body length of 27 metres (89 ft) and mass of approximately 27 tonnes, making it the largest dinosaur known from Southeast Asia. Anatomy: pillar-like legs with the front legs about as long as or slightly longer than the hind legs, broad body; a tail held off the ground. Full body in side view, whole animal visible, standing in an Early Cretaceous floodplain like the Khok Kruat Formation of northeastern Thailand, warm and semi-arid with conifers, cycads, ferns and rare early flowering plants, 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