File:1911 Britannica-Arachnida-Agnostus nudus.png
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English: Four stages in the development of the trilobite Agnostus nudus. A, Youngest stage with no mesosomatic somites; B and C, stages with two mesosomatic somites between the prosomatic and telsonic carapaces; D, adult condition, still with only two free mesosomatic somites. (From Korschelt and Heider.) |
| Date | |
| Source |
 Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 301 |
| Author | Encyclopædia Britannica, 1911 |
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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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| current | 02:19, 10 March 2015 | | 2,400 × 1,543 (218 KB) | Animalparty (talk | contribs) | larger, clearer |
| 13:28, 2 November 2012 |  | 301 × 190 (44 KB) | Clarice Reis (talk | contribs) | User created page with UploadWizard |
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