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Really Ricardstonia?

A question has occured to me. I have seen it mentioned that _Ricardstonia_ is a wastebasket taxon, where teeth that don't fit into other genera are shoehorned. Has this been seriously looked at, or is this just idle speculation? How likely is it that _Ricardstonia_ isn't a monophyletic genus?

Student of Geology
Northern Arizona University
Biological Sciences Tech
Manti-La Sal National Forest
AIM: TarryAGoat
"A _Coelophysis_ with feathers?"

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