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Figure 9. Wilson (1892) cleavage stages

Diagrams of cleavage stages of a polyclad worm (A and C), a mollusc (D) and annelid worms (B and E) from Wilson (1892). Wilson was impressed with the similarity in the formation of mesoderm by these different groups of organisms. The shaded cells are the precursors of mesoderm. Wilson interpreted studies of cell lineage as showing that development is mosaic.


Figures: Fig 1. by N. Hartsoeker 1694 | Fig 2. by M. Malpighi 1673 | Fig 3. by C.E. von Baer 1827 | Fig 4. by W. Roux 1888 | Fig 5. by H. Driesch 1892 | Fig 6. Louis Agassiz | Fig 7. Leonard W. Williams c1900 | Fig 8. by Conklin 1905 | Fig 9. by Wilson 1892 | Fig 10. by Loeb 1893 | Fig 11. by E. B. Wilson 1904 | Fig 12. by O.E. Schotte | Fig 13. by Spemann and H. Mangold 1924 | Fig 14. by S. Horstadius 1928 | Fig 15. by R. G. Harrison 1921 | Fig 16. by Townes and Holtfreter 1955

Cite this page: Hill, M.A. (2024, April 27) Embryology Hilfer1990 Fig09.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hilfer1990_Fig09.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current10:00, 28 August 2014Thumbnail for version as of 10:00, 28 August 2014937 × 1,200 (166 KB)Z8600021 (talk | contribs)==Figure 9. == Diagrams of cleavage stages of a polyclad worm (A and C), a mollusc (D) and annelid worms (B and E) from Wilson (1892). Wilson was impressed with the similarity in the formation of mesoderm by these different groups of organisms. The sh...

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