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July 30, 2026Short & citedBlog
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Field Notes • Paleontology

Quetzalcoatlus

Quetzalcoatlus is a genus of giant azhdarchid pterosaurs that lived in North America during the Late Cretaceous.

Updated July 30, 20261 min readCited sources

Quetzalcoatlus is a genus of giant azhdarchid pterosaurs that lived in North America during the Late Cretaceous. It is widely regarded as one of the largest flying animals ever known, and it was not a dinosaur.

What it is

Quetzalcoatlus is a pterosaur, not a dinosaur. It belongs to the family Azhdarchidae, a group of large, often long-necked flying reptiles. The genus includes two species, with the type specimen discovered in Texas in 1971 and described in 1975 as Quetzalcoatlus northropi.

Key details

Common estimates place its wingspan at about 10–12 metres (33–39 feet), though published figures vary. It lived roughly 68 to 66 million years ago during the Maastrichtian stage of the Late Cretaceous. The name references Quetzalcóatl, the feathered serpent deity in Mesoamerican mythology.

Why it matters

Quetzalcoatlus is a well-known example of a giant flying reptile from the end of the Cretaceous, often highlighted in paleontology and natural history education. For Canadian readers, it serves as a key reference point for understanding the diversity of prehistoric life in North America.

In short

  • Quetzalcoatlus is a pterosaur, not a dinosaur.
  • It lived in North America during the Late Cretaceous, about 68–66 million years ago.
  • Its wingspan is commonly estimated at 10–12 metres, though figures vary.
  • The type specimen was found in Texas in 1971 and named after the Mesoamerican deity Quetzalcóatl.
Canadian angle

Quetzalcoatlus is mainly relevant to Canadian readers through paleontology and natural history education, especially as a well-known example of a giant flying reptile from the end of the Cretaceous.

Quick questions

Is Quetzalcoatlus a dinosaur?
No. It was a pterosaur, a separate group of flying reptiles.
How big was Quetzalcoatlus?
Common estimates place its wingspan at about 10–12 metres, though published figures vary.
When did Quetzalcoatlus live?
It lived during the Late Cretaceous, roughly 68 to 66 million years ago.

Sources

  1. Encyclopaedia Britannica — https://www.britannica.com/animal/Quetzalcoatlus
    Supports: Genus classification, family Azhdarchidae, and status as one of the largest known flying animals.
  2. Dinosaur Encyclopedia — https://dinosaurencyclopedia.org/quetzalcoatlus/
    Supports: Late Cretaceous age, approximate date range, and size estimates.
  3. Wikipedia — https://en.wikipedia.org/wiki/Quetzalcoatlus
    Supports: Type specimen discovery in Texas, description in 1975, and species information.
  4. EBSCO Research Starters — https://www.ebsco.com/research-starters/anthropology/quetzalcoatlus
    Supports: Late Cretaceous North American pterosaur, naming origin, family placement, and general biology.
  5. ExtinctAnimals.org — https://www.extinctanimals.org/quetzalcoatlus.htm
    Supports: Largest flying reptile characterization and general classification.
  6. Simple English Wikipedia — https://www.simple.wikipedia.org/wiki/Quetzalcoatlus
    Supports: Late Cretaceous range, genus with two valid species, and pterosaur identity.
  7. Science Museum of Virginia — https://smv.org/learn/blog/quetzalco-what/
    Supports: Common size estimates and public-science explanation of its large wingspan.