File:Cranial sinus and postcranial air sac systems in birds.jpg

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English: Original caption: "Figure 1. Cranial sinus and postcranial air sac systems in birds. All pneumatic spaces are paired except the clavicular air sac, and the lungs are shaded. Abbreviations: aas, abdominal air sac; atas, anterior thoracic air sac; cas, cervical air sac; clas, clavicular air sac; hd, humeral diverticulum of the clavicular air sac; lu, lung; pns, paranasal sinus; ptas, posterior thoracic air sac; pts, paratympanic sinus; t, trachea."
Date First published September 30, 2008
Source Sereno PC, Martinez RN, Wilson JA, Varricchio DJ, Alcober OA, et al. (Sept 2008). "Evidence for Avian Intrathoracic Air Sacs in a New Predatory Dinosaur from Argentina". PLoS ONE 3(9): e3303.
Author C. Abraczinskas
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"© 2008 Sereno et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited."
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Date/TimeThumbnailDimensionsUserComment
current06:17, 3 October 2015Thumbnail for version as of 06:17, 3 October 20152,763 × 2,172 (561 KB)Carl Henderson (talk | contribs)Fixed missing dotted lines and mis-colored section in image.
05:44, 3 October 2015Thumbnail for version as of 05:44, 3 October 20152,763 × 2,172 (557 KB)Carl Henderson (talk | contribs)Abbreviations spelled out as indicated in the accompanying text (as per request on Graphics Workshop). Color added for contrast.
13:12, 1 October 2008Thumbnail for version as of 13:12, 1 October 20081,196 × 942 (182 KB)Mgiganteus (talk | contribs)== Summary == {{Information |Description={{en|1=Original caption: "Figure 1. Cranial sinus and postcranial air sac systems in birds. All pneumatic spaces are paired except the clavicular air sac, and the lungs are shaded. Abbreviations: aas, abdominal a

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