Click here to close
Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly.
We suggest using a current version of Chrome,
FireFox, or Safari.
Definition: "The anterior limb bud that develops into the fore limb; oval shaped in dorsal aspect by NF stage 50, and paddle shaped by NF stage 53; all four fingers and melanophores apparent by NF stage 54."