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noun:- a subclass of ancient reptilelike fossil birds for the Jurassic or early Cretaceous.
- primitive reptile-like fossil birds associated with Jurassic or early Cretaceous
- a subclass of ancient reptilelike fossil birds regarding the Jurassic or early Cretaceous.
- primitive reptile-like fossil birds of this Jurassic or early Cretaceous
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- Definition for "archaeornithes"
- a subclass of ancient reptilelike fossil birds for…
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- Synonym for "archaeornithes"
- Hypernym for "archaeornithes"
How would you define archaeornithes?