Mesozoic Neornitheans

[Mike Keesey <tmk@dinosaur.umbc.edu>]

I'm looking to slightly expand my website, which currently covers all
non-neornithean ornithodirans, to include all Mesozoic ornithodirans. It
seems there are few, if any, non-controversial Mesozoic neornitheans, and
I was wondering if anyone could give reasons why any of the following
should be marked invalid (other than those that already are -- with a
'*'):

_incertae sedis_:
   _Gobipipus_
Anseriformes:
   _Gallornis_
Charadriiformes:
  *_Anatalavis_ (Early Paleocene, not Late Cretaceous)
   _Ceramornis_
   _Cimolopteryx_
  *_Graculavus_ (Early Paleocene, not Late Cretaceous)  
  *_Laornis_ (Early Paleocene, not Late Cretaceous)
   _Lonchodytes_
  *_Palaeotringa_ (Early Paleocene, not Late Cretaceous)
   _Palintropus_
  *_Telmatornis_ (Early Paleocene, not Late Cretaceous)
   _Volgavis_
Gaviiformes:
  *_Neogaeornis_ (Hesperornithiformes _incertae sedis_?)
   _Polarornis_
Procellariformes:
   _Tytthostonyx_
Psittaciformes:
   unnamed form (the beak -- did this one ever get resolved?)
Ratitae:
   _Palaeocursornis_

Also, does anyone know where in Aves these animals belong? (Even something
as vague as "Ornithurae _incertae sedis_" would be helpful.)

_Eurolimnornis_
_Gansus_
_Gargantuavis_
_Torotix_

One final question -- are there any I've missed?

Thanks!

-- T. Michael Keesey .................................. <tmk@dinosaur.umbc.edu>
   My Worlds (including The Dinosauricon) ... <http://dinosaur.umbc.edu/keesey>
   AOL Instant Messenger ......................................... <Ric Blayze>