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 held forward with claws pointing downShould 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 held forward with claws pointing down
- ✓Three weight-bearing toes on each foot
- ✓Long strong arms with huge curved claws on the thumb and first finger
- ✓Slender predator about 6 m long, long narrow head, long legs
- ✓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 Phuwiangvenator, a carnivore Megaraptora 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. Long, strong arms with an enormous curved claw on the thumb and a large claw on the first finger. Reference: Phuwiangvenator is an extinct genus of megaraptoran theropod that lived during the Early Cretaceous period in what is now Thailand. It contains only the type species, P. yaemniyomi. The generic name of Phuwiangvenator comes from the Phu Wiang mountains, where the holotype was discovered, and the Latin word "venator" meaning hunter. Anatomy: hands held with palms facing each other (not pronated, not palms-down, not dangling); three main weight-bearing toes on each foot; a slender, lightly built predator about 6 meters long with a long, narrow skull and long legs. 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
Phuwiangvenator
Find it in a game
In Cretaceous Survival, Sao Khua Formation · opens the game at play.dinocodex.com
Play as Phuwiangvenator
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 Phuwiangvenator (Sao Khua), so they lived in the same region at roughly the same time.
Phuwiangosaurus
Kinnareemimus
Siamotyrannus
Vayuraptor
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
- 2 sites
Countries with fossils
- Thailand
Data from Paleobiology Database and Wikidata