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Re: Foraminacephale gen. nov.

 For example, over ten years passed between the naming of the
 ornithopod "Gravisaurus" in a dissertation (1988) and its formal
 publication in the scientific literature, as _Lurdusaurus_ (1999).
 During this time the original author left the field of paleontology,
 so there was nil chance of her ever putting out a formal
 publication. Using a nomen nudum as a de facto declaration of an
 'intent to publish' could be unhelpful.

An even worse case are the names erected in Alan Charig's thesis, *Mandasuchus*, *Teleocrater* and *Nyasasaurus*. Charig stayed in palaeontology, but never published the names, and then he died! Only now is his material being formally described and published under the names he gave it.

That said, such situations can happen when a description has been validly published, too. The temnospondyl *Doleserpeton*, very important for the origin of Lissamphibia, was described in John Bolt's PhD thesis in 1964 and published in a three-page Science paper in 1969, and then Bolt sat on the material and apparently didn't let anyone look at it. Papers on the teeth came out in 1977 and 1979, one on the supposed middle ear in 1985, and a few more bits and pieces in 1991, but that's it. Only when his PhD student Trond Sigurdsen became involved, publication resumed: occiput and braincase in 2008, forelimb in 2009, full description in 2010.