AI imageNote: This dinosaur is known from only part of a skeleton. The image fills in the missing parts from close relatives, so the real animal may have looked quite different.
Match with prompt
89% (8/9 items)
Where the image differs from the prompt
- Hands dangle in frontShould be: Palms facing each other, not turned down or dangling
See the checklist, prompt and sources
- ✓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 in front
- ✓Three weight-bearing toes on each foot
- ✓Slender long-legged predator about 4–5 m long with a narrow head
- ✓Body covered in simple filament-like feathers
- ✓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 Vayuraptor, a carnivore Coelurosauria dinosaur from Barremian times (125.77–121.4 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 slender, lightly built, long-legged predator about 4–5 meters long with a narrow head. Reference: Vayuraptor is a genus of basal coelurosaurian theropod dinosaur that lived in the Lower Cretaceous (Barremian) Sao Khua Formation of Thailand. The genus contains a single species, V. nongbualamphuensis, known from a partial skeleton. Anatomy: hands held with palms facing each other (not pronated, not palms-down, not dangling); three main weight-bearing toes on each foot; body covered in simple filament-like feathers. Full body in side view, whole animal visible, standing in an Early Cretaceous river floodplain like the Sao Khua Formation of northeastern Thailand, warm and semi-arid with conifers, cycads and ferns along meandering rivers, 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
Vayuraptor
Find it in a game
In Cretaceous Survival, Sao Khua Formation · opens the game at play.dinocodex.com
Play as Vayuraptor
There is no write-up for this dinosaur yet, but the scientific data below is complete.
Who lived alongside it
Dinosaurs found in the same rock formation as Vayuraptor (Sao Khua), so they lived in the same region at roughly the same time.
Phuwiangosaurus
Phuwiangvenator
Kinnareemimus
Siamotyrannus
Formation data from the Paleobiology Database, counting only each genus's main formations. One formation can span hundreds of thousands to millions of years, so this doesn't mean any two of them ever met.
Scientific details
- Classification
- Theropod (two-legged predators)
- Family
- Unknown
- When it lived
- 121.4–125.77 million years ago
- Geologic stages
- Barremian
- Named by
- Samathi et al., 2019
- Fossil occurrences
- 1 sites
🦴 Known fossil material
Parts found as fossils
- Hind leg
Holotype: a left shin bone (tibia) with its ankle bones (astragalus and calcaneum). A coracoid (shoulder bone), part of a fibula, a rib, part of a pubis, a finger bone and a probable toe bone have also been referred to it; this diagram shows only the holotype.
Coloured areas are parts of the skeleton with fossil bones found so far (sometimes just one bone in that area); faint areas have not been found. The outline is a general shape for its group, not this dinosaur's real body.
Compiled from published descriptions; not yet checked against the original papers by a specialist. Sources: Wikipedia (en): Vayuraptor
Countries with fossils
- Thailand
Data from Paleobiology Database and Wikidata