Talk:Neurogenic placode

Neurogenic vs cranial vs ectodermal placodes

I expanded this article a bit (mostly based on http://www.ncbi.nlm.nih.gov/books/NBK53171/), and attempted to provide some background on the various uses of "placode". Sometimes this is restricted to cranial/neurogenic placodes (e.g. placode links to this article). Sometimes "placode" includes mammary, feather placode etc. Also sometimes "neurogenic placode" is used more restrictively than "cranial placode". Comments welcome Cmungall (talk) 01:53, 27 August 2012 (UTC)

Of interest?

http://www.csmonitor.com/Science/2016/0624/Why-scales-feathers-and-hairs-may-have-a-common-ancestry

"Why scales, feathers, and hairs may have a common ancestry

" . . . A hair, scale, feather, or even a tooth, grows out of an anatomical structure called a placode that forms in the top layer of the skin. . . .

"A bird's feathers, a reptile's scales, and a mammal's hairs may seem like very distinct features, but these skin appendages may come from common origins, say scientists.

"The mechanism behind the embryonic development of feathers, reptilian scales, and hair is remarkably similar, according to a paper (http://advances.sciencemag.org/content/2/6/e1600708) published Friday in the journal Science Advances. This finding suggests that these distinct appendages have their roots in a common ancestor of these three diverse lineages."

-- Jo3sampl (talk) 16:36, 25 June 2016 (UTC)

This is exciting news! I just read the NYTimes article on this: http://www.nytimes.com/2016/06/25/science/scales-feathers-hair-common-ancestor.html, and I would like to see a new page on placodes and links from the pages on hair, scales, feathers to that page. IMHO. Paulmlieberman (talk) 14:44, 27 June 2016 (UTC)