This one... there are only 2 possibilities: either it's a loriid, means, it
belongs to a _part_ of the crown group of Psittaciformes, or it's not a
psittaciform.
Correct me if I'm wrong, but I do not believe that modern avian "orders"
(e.g., Psittaciformes, Galliformes, Sphenisciformes) are restricted by
definition to their respective crown groups. Fossil taxa (e.g.,
Gallinuloididae) have been referred to the Galliformes as stem taxa that do
not belong to the crown group. Further, here's what Clarke et al. (2003)
have to say for the penguin clade:
" ?Pansphenisciformes? is used here as a name for all taxa more closely
related to extant penguins than to any other extant avian taxa.
?Sphenisciformes? is suggested as a name for all parts of this lineage with
a loss of aerial flight homologous with that of extant penguins. These
definitions are deliberately not formalized pending recommendation of the
PhyloCode regarding the proposed use of ?pan? as a prefix in all stem clade
names (Gauthier and de Queiroz, 2001 ) and to allow penguin specialists to
debate appropriate definitions for these names prior to the start date of
the PhyloCode (Cantino and de Queiroz, 2000 ). As all extant penguins have
consistently been placed in the ?family? Spheniscidae, it is also
recommended that the name ?Spheniscidae? be formally applied to the clade
comprised of the most recent common ancestor of all extant penguins and all
of its descendants. "
Thus, Clarke et al. (2003) propose a stem-based definition for
Pansphenisciformes, an apomorphy-based definition for Sphenisciformes, and a
node-based definition for Spheniscidae (= crown group).