Board Thread:The Panopticon/@comment-4028641-20151101035254/@comment-25939326-20160201215243

The names I think would obey policy and provide the least amount of confusion are: All character histories would cover everything up to their joining the Osgood collective.
 * Osgood (The Day of the Doctor) for the human
 * Osgood (zygon) or Zygon (Osgood) (the order is part of a separate discussion soley regarding zygons) for the zygon from 'The Day of the Doctor'
 * Bonnie (The Zygon Invasion) for 'Zygella'
 * Osgood (hybrid) for the Osgood collective
 * Osgood (disambiguation) linking to all preceding pages, as well as Tom Osgood, Harry Osgood, Osgood's sister, etc.

As for Petronella, until confirmation or deconfirmation it should not be reflected in pagenames, and mentioned as a possible first name in the pages themselves.