Earliest Signs of Fingers

12 Days, 7–9 mm
  • Karl Theiler


The most conspicuous changes take place in the extremities. The “handplate” is no longer roundish. Even in younger members of this group there is a slightly angular contour (Fig. 182). The developing angles correspond to the finger rays [184]. The posterior footplate is now demarcated from the lower part of the leg. The somites are clearly visible from the tail to the mid-trunk region. The spinal ganglia may be seen through the skin in transparent specimens.


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Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • Karl Theiler
    • 1
  1. 1.Department of AnatomyUniversity of ZurichZurichSwitzerland

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