Image: Troodon formosus
Troodon_formosus.jpg (764 × 428 pixels, file size: 92 KB, MIME type: image/jpeg)
Description: Troodon formosus holotype tooth.
Title: Troodon formosus
Credit: Extinct Vertebrata from the Judith River and Great Lignite Formations of Nebraska. Transactions of the American Philosophical Society, New Series 11:139-154.
Author: Joseph Leidy
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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