cladistic studies question

[David Peters <davidrpeters@earthlink.net>]

Are there any cladistic studies that have been able to mate the
following pairs?

1. infants with adults
2. headless adults with bodyless heads
3. heads with infants
4. any other combination of the above

The reason I ask is that I think I found a body match for bodyless
Gnathosaurus among the many Solnhofen infants, and a few other
infant/adult matches as well.

David Peters