• ✓Bipedal, back horizontal, tail held straight out off the ground
• ✓Palms facing each other, not turned down or dangling
• ✓Three weight-bearing toes on each foot
• ✕Wings with long flight feathers and three free clawed fingers at the wing edgeFree clawed fingers at the wing edge not clearly visible
• ✓Long bony tail with feathers along both sides
• ✓Jaws with small teeth, not a beakOpen mouth shows small teeth
• ✕Raven-sized, feathered all over including the legs, dark plumageLegs are not feathered
• ✓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 Archaeopteryx, a Archaeopterygidae dinosaur from the Late Jurassic, Tithonian (about 150 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. Fully feathered wings with long asymmetric flight feathers, and three separate clawed fingers free at the front edge of each wing. A long bony tail with a row of feathers along each side of its whole length, NOT a short fan-like bird tail. Reference: Archaeopteryx, sometimes referred to by its German name, "Urvogel " is an extinct genus of bird-like dinosaurs. The genus name derives from the Ancient Greek ἀρχαῖος, meaning 'ancient', and πτέρυξ, meaning 'feather, wing'. Between the late 19th century and the early 21st century, Archaeopteryx was generally accepted by palaeontologists and popular reference books as the oldest known bird. Older potential avialans have since been identified, including Anchiornis, Xiaotingia, Aurornis, and Baminornis. Anatomy: hands held with palms facing each other (not pronated, not palms-down, not dangling); three main weight-bearing toes on each foot; jaws lined with small teeth, NOT a beak; about the size of a raven, body and legs covered in feathers, mostly dark plumage. Full body in side view, whole animal visible, standing in a warm, semi-arid Late Jurassic island in the Solnhofen archipelago of southern Germany, with low conifer shrubs and cycads near a shallow turquoise lagoon, 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