File:EB1911 Reptiles - Ventral Aspect of Skull of Chelys matamata.jpg

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English: Ventral Aspect of Skull of Chelys matamata. bo, basioccipital; bs, basisphenoid; mdl, mandible; oh, opisthotic; pl, palatine; pm, premaxilla; po, proötic; pb, pterygoid; q, quadrate; s, squamosal; v, vomer.
Date published 1911
Source “Reptiles,” Encyclopædia Britannica (11th ed.), v. 23, 1911, p. 150, fig. 17.
Author Hans Friedrich Gadow
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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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Date/TimeThumbnailDimensionsUserComment
current19:43, 9 October 2019Thumbnail for version as of 19:43, 9 October 2019689 × 661 (135 KB)Bob Burkhardt{{Information |description ={{en|1=Ventral Aspect of Skull of ''Chelys matamata''. ''bo'', ''basioccipital''; ''bs'', basisphenoid; ''mdl'', mandible; ''oh'', opisthotic; ''pl'', palatine; ''pm'', premaxilla; ''po'', proötic; ''pb'', pterygoid; ''q'', quadrate; ''s'', squamosal; ''v'', vomer.}} |date =published 1911 |source =“Reptiles,” ''Encyclopædia Britannica'' (11th ed.), v. 23, 1911, p. 150, fig. 17. |author =Hans Friedrich Gadow |permission ={{PD-Britannica}}...