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Sinornithoides (John Conway)


Sinornithoides (Greek for "Chinese bird form"); pronounced SIGH-nor-nih-THOY-deez


Woodlands of Asia

Historical Period:

Early Cretaceous (130 million years ago)

Size and Weight:

About 3 feet long and 5-10 pounds



Distinguishing Characteristics:

Feathers; long tail; sharp teeth


About Sinornithoides:

Known from a single specimen--which was found in a curled-up posture, either because it was sleeping or because it was huddling to protect itself from the elements--Sinornithoides was a small, agile, feathered theropod that resembled a (much) smaller version of the more famous Troodon. Like other troodonts, as they're called, the early Cretaceous Sinornithoides probably feasted on a large selection of prey, ranging from insects to lizards to its fellow dinosaurs.

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