Geared Dermis/Epidermis: Development

[Psychonaut]

Hello everybody!

In the human skin, dermis and epidermis are geared. How did this structure develop?

I found out that this structure develops during the second trimester of pregnancy, but that's about all.

Greetings

[Psychonaut]

Doesn't anybody know anything more detailed about the construction or structure of the geared dermis / epidermis?