Chaltenobatrachus
The sole species , Chaltenobatrachus grandisonae , used to be included "Atelognathus" , which is considered the sister taxon of "Chaltenobatrachus" . 
<triplet> Chaltenobatrachus <subj> Atelognathus <obj> parent taxon <triplet> Chaltenobatrachus <subj> Atelognathus <obj> parent taxon