• ✕Large bulky plant-eater about 10 m long, on four legs, hind legs much longer than the arms, tail off the groundขาหน้ายาวพอๆ กับขาหลัง ไม่สั้นกว่ามากอย่างที่ควร
• ✓Long head with a beak at the tipอ้าปากเล็กน้อย แต่ไม่เห็นฟัน
• ✓Conical thumb spikes
• ✓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 Iguanodon, a herbivore Iguanodontia dinosaur from the Barremian to early Aptian ages of the Early Cretaceous (about 126–122 million years ago). A large, bulky plant-eater about 10 meters long, walking on four legs with the hind legs much longer than the arms, a long tail held off the ground. Reference: Iguanodon, named in 1825, is a genus of iguanodontian dinosaur. While many species found worldwide have been classified in the genus Iguanodon, dating from the Late Jurassic to Early Cretaceous, taxonomic revision in the early 21st century has defined Iguanodon to be based on at least one well-substantiated species: Iguanodon bernissartensis, which lived during the Barremian to early Aptian ages of the Early Cretaceous in Belgium, Germany, Spain, and possibly England, between about 126 and 122 million years ago. Iguanodon was a large, bulky herbivore, measuring up to 9–11 metres (30–36 ft) in length and 4.5 metric tons in body mass. Anatomy: a long head with a toothless beak at the front; a conical spike on each thumb. Full body in side view, whole animal visible, standing in an Early Cretaceous river floodplain in western Europe, like the Wealden of England and the Bernissart clays of Belgium, with conifers, cycads, tree ferns and ferns, 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