File:Extraembryonic tissues during amniote development.jpg

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License CC-BY 2.5 in front of the article. see https://www.researchgate.net/publication/232228093_Diversification_and_conservation_of_the_extraembryonic_tissues_in_mediating_nutrient_uptake_during_amniote_development

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Description Extraembryonic tissues during amniote development. (A) A simplified phylogenetic tree of the extant amniotes. a, amniotes; m, mammals; r, reptiles (including birds). (B) A developing turtle (Pelodiscus sinensis) embryo, showing the embryo proper together with all associated extraembryonic tissues. (C) Two examples of how an amniote embryo organizes its extraembryonic tissues. Modified after Ferner and Mess,3 with permission from Elsevier. Left: schematic view of the organization in birds and many reptiles. Right: schematic view of the organization in eutherian mammals. 1, amnion; 2, chorion; 3, yolk sac; 4, allantois. Germ layers are color-coded (green, ectoderm; red, mesoderm; yellow, endoderm).
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https://www.researchgate.net/publication/232228093_Diversification_and_conservation_of_the_extraembryonic_tissues_in_mediating_nutrient_uptake_during_amniote_development Guojun Sheng,

Ann C Foley. Diversification and conservation of the extraembryonic tissues in mediating nutrient uptake during amniote development. Annals of the New York Academy of Sciences 1271(1):97-103 DOI:10.1111/j.1749-6632.2012.06726.x PubMed.
Author Guojun Sheng, Ann C Foley
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Open Access See: https://creativecommons.org/licenses/by/2.5/

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current17:41, 3 September 2024Thumbnail for version as of 17:41, 3 September 20241,456 × 1,398 (1.97 MB)Rasbak (talk | contribs){{Information |description=Extraembryonic tissues during amniote development. (A) A simplified phylogenetic tree of the extant amniotes. a, amniotes; m, mammals; r, reptiles (including birds). (B) A developing turtle (Pelodiscus sinensis) embryo, showing the embryo proper together with all associated extraembryonic tissues. (C) Two examples of how an amniote embryo organizes its extraembryonic tissues. Modified after Ferner and Mess,3 with permission from Elsevier. Left: schematic view of the...

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