• ✓No bony crest, only a low fleshy comb on the head; long, low headไม่มีหงอนกระดูก มีหงอนเนื้อสีแดงต่ำบนหัว
• ✓Large animal about 12 m long
• ✓Broad, flat duck-like beak
• ✓Walks on all fours on hoof-like hands, tail held straight out
• ✓Small pebbly scales
• ✓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 Edmontosaurus, a herbivore Hadrosauridae dinosaur from the late Campanian to the end of the Maastrichtian (about 73–66 million years ago). NO bony crest on the head, only a low, fleshy comb on top of the skull, and a long, low head. Reference: Edmontosaurus, often colloquially and historically known as Anatosaurus or Anatotitan, is a genus of hadrosaurid (duck-billed) dinosaur. It contains two known species: Edmontosaurus regalis and Edmontosaurus annectens. Fossils of E. regalis have been found in rocks of western North America that date from the late Campanian age of the Cretaceous period 73 million years ago, while those of E. annectens were found in the same geographic region from rocks dated to the end of the Maastrichtian age, 66 million years ago. Anatomy: a large animal about 12 meters long; a broad, flat, duck-like toothless beak; walking on all fours with the front hands forming small hoof-like pads, tail held straight out off the ground; skin of small pebbly scales. Full body in side view, whole animal visible, standing in a humid latest-Cretaceous floodplain forest like the Hell Creek Formation of North America, with conifers, ferns and early flowering trees and shrubs, 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