• ✓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 danglingArms too small to see hand orientation
• ✓Three weight-bearing toes on each foot
• ✓Short blunt head with two thick bull-like horns above the eyes
• ✓Tiny stubby arms, smaller than a T. rex's
• ✓Rows of large cone-shaped scales along the body
• ✓Long slender hind legs built for running
• ✓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 Carnotaurus, a carnivore Abelisauridae dinosaur from the Maastrichtian of the Late Cretaceous (about 69–66 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. A short, deep, blunt skull with two thick horns sticking out sideways above the eyes, like a bull. Tiny, stubby, almost useless arms much smaller than a tyrannosaur's. Reference: Carnotaurus is a genus of theropod dinosaur that lived in South America during the Late Cretaceous period, between 69 and 66 million years ago. The only species is Carnotaurus sastrei. Known from a single well-preserved skeleton, it is one of the best-understood theropods from the Southern Hemisphere. Anatomy: hands held with palms facing each other (not pronated, not palms-down, not dangling); three main weight-bearing toes on each foot; skin covered in rows of large cone-shaped scales along the sides and back; long, slender hind legs built for running. Full body in side view, whole animal visible, standing in a Late Cretaceous coastal plain in Patagonia, Argentina, like the La Colonia Formation, with conifers, ferns and early flowering plants near a tidal estuary, 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