Species
Guanlong wucaii
Guanlong wucaiiAlso known as Five-Colored Crowned Dragon
Guanlong stalked the floodplain forests of Late Jurassic China as an agile, three-meter-long predator equipped with long, grasping three-fingered forelimbs. Its most striking feature was an exceptionally fragile, air-filled cranial crest running along the snout, which likely served as an ornamental display rather than a physical weapon. Long before giant apex tyrannosaurs dominated the Late Cretaceous, this slender relative relied on keen vision and swift bipedal locomotion to hunt smaller vertebrates.
PrehistoricCarnivorousBipedal
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyYinlong downsi, Primitive crocodylomorphs, Small mammaliaforms
Predators
- Sinraptor dongi
- Monolophosaurus jiangi
ThreatsExtinct (prehistoric apex theropods and habitat shifts)
HabitatsWoodlands and seasonal floodplains
Life spanEstimated 10–20 years
Classification
- FamilyTyrannosauridae
- SpeciesGuanlong wucaii
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct species known only from fossil remains; safe to observe in museum exhibits.
Responsible observation
- Fossil Examination: Observe mounted museum casts to appreciate the delicate structure of its hollow crest.
- Anatomy Clues: Look closely at the hands to spot three functional claws, unlike later two-toed tyrannosaurids.
Predator Ian Armstrong from Travelling the world at moment, Australia / CC BY-SA 2.0 · cc-by-sa
Image unavailablePrey Close Relative 
Close Relative WehaveaTrex / CC BY-SA 4.0 · cc-by-sa
Close Relative no rights reserved, uploaded by wilderbombyx · cc0
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