• ✓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 danglingHands dangle with claws pointing down
• ✓Three weight-bearing toes on each foot
• ✓Long, low, narrow skull, not broad and deep like T. rex
• ✓Huge, 12–13 m long, short three-fingered arms, small 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 Carcharodontosaurus, a carnivore Carcharodontosauridae dinosaur from the Cenomanian age of the Late Cretaceous (about 100–94 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 long, low, narrow skull with blade-like teeth, NOT the broad deep skull of Tyrannosaurus. Reference: Carcharodontosaurus is a genus of large theropod dinosaur that lived in Northwest Africa from about 100 to 94 million years ago during the Cenomanian age of the late Cretaceous period. The genus was first described in 1925 by French paleontologists Charles Depéret and Justin Savornin as Megalosaurus saharicus, based on two fossil teeth discovered in Algeria, which are now lost. A partial skeleton was discovered in Egypt as early as 1914 by crews of German paleontologist Ernst Stromer, although he did not report the find until 1931. Based on this specimen as well as the teeth previously described by Depéret and Savornin, Stromer established the genus Carcharodontosaurus, with C. saharicus as the only species. Anatomy: hands held with palms facing each other (not pronated, not palms-down, not dangling); three main weight-bearing toes on each foot; a huge animal about 12–13 meters long, short arms with three clawed fingers, powerful hind legs, skin of small scales. Full body in side view, whole animal visible, standing in a wide Late Cretaceous river system in North Africa, like the Kem Kem beds of Morocco, on a sandy riverbank with ferns and conifers, 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