• ✓Bipedal, back horizontal, tail held straight out off the ground
• ✓Mouth closed, lips covering the teeth so none are visible
• ✓Palms facing each other, not turned down or danglingมือพับแนบอก กรงเล็บงอเข้า
• ✓Three weight-bearing toes on each foot
• ✓Tall blade-like horn on the snout and a smaller horn above each eye
• ✓One row of small bony scutes along the neck, back and tail
• ✓About 6 m long, deep jaws, short four-fingered arms, small scalesเห็นนิ้วมือหลายนิ้วแต่นับไม่ชัด
• ✓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 Ceratosaurus, a carnivore Ceratosauridae dinosaur from the Late Jurassic, Kimmeridgian–Tithonian (about 153–148 million years ago). Bipedal with the back held roughly horizontal and the tail held straight out behind for balance, never dragging on the ground. NOT standing upright like a kangaroo. Mouth closed with all teeth fully hidden behind scaly lips, like a monitor lizard. NO visible teeth. Hands held tucked in near the chest with the palms facing inward toward each other, like clapping, claws curving inward and forward. NOT hanging down, NOT palms-down, NOT claws pointing at the ground. A tall, blade-like horn on the midline of the snout and a smaller horn above each eye. Reference: Ceratosaurus is a genus of carnivorous theropod dinosaur that lived during the Late Jurassic period in North America and Europe. The genus was first described in 1884 by American paleontologist Othniel Charles Marsh based on a nearly complete skeleton discovered in Garden Park, Colorado, in rocks belonging to the Morrison Formation. The type species is Ceratosaurus nasicornis. Anatomy: three main weight-bearing toes on each foot; a single row of small bony scutes running down the middle of the neck, back and tail; about 6 meters long, deep jaws, short arms with four fingers, skin of small scales. Full body in side view, whole animal visible, standing in a semi-arid Late Jurassic floodplain like the Morrison Formation of western North America, with conifers, cycads, ginkgoes, tree ferns and ferns along a river, 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