• ✓Sauropod about 15–20 m long, neck moderately raised
• ✓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 Phuwiangosaurus, a herbivore Euhelopodidae dinosaur from Barremian–Aptian times (125.77–113.2 million years ago). A titanosauriform sauropod about 15–20 meters long, with a long neck held moderately raised. Reference: Phuwiangosaurus is a genus of titanosauriform dinosaur from the Early Cretaceous (Valanginian-Hauterivian) Sao Khua Formation of Thailand. The type species, P. sirindhornae, was described by Martin, Buffetaut, and Suteethorn in a 1993 press release and was formally named in 1994. The species was named to honor Princess Maha Chakri Sirindhorn of Thailand, who was interested in the geology and palaeontology of Thailand, while the genus was named after the Phu Wiang area, where the fossil was discovered. The precise affinities of Phuwiangosaurus among titanosauriform sauropods are uncertain, though several studies have classified it as a euhelopodid. 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 river floodplain like the Sao Khua Formation of northeastern Thailand, warm and semi-arid with conifers, cycads and ferns along meandering rivers, no grass and no flowering plants. 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