File:Aves presumptive organ-forming areas in the blastoderm.jpg

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Description Fig. 173. Presumptive organ-forming areas in the chick blastoderm. (A) Slightly modified from Spratt, '46. (B) Schematic section of early chick blastoderm passing through antero-posterior median axis.
Date
Source https://archive.org/details/comparativeembry00nels/page/360/mode/1up?view=theater&q=BLASTULATION+ Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illustrations.
Author Nelsen, Olin E.

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current21:47, 11 March 2024Thumbnail for version as of 21:47, 11 March 20241,216 × 1,023 (819 KB)Rasbak (talk | contribs){{Information |description=Fig. 173. Presumptive organ-forming areas in the chick blastoderm. (A) Slightly modified from Spratt, '46. (B) Schematic section of early chick blastoderm passing through antero-posterior median axis. |date=1953 |source=https://archive.org/details/comparativeembry00nels/page/360/mode/1up?view=theater&q=BLASTULATION+ Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illustrations. |author= Nelsen, Olin E. |permission= |other ver...

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