Editing Probainognathidae (section)

{{short description|Extinct family of cynodonts}}
{{Automatic taxobox
| fossil_range = {{Fossil range/linked|Ladinian|Carnian}}
| image = Bonacynodon schultzi.jpg
| image_caption = ''[[Bonacynodon]]'' skull
| taxon = Probainognathidae
| authority = [[Alfred Romer|Romer]], 1973
| subdivision_ranks = Genera
| subdivision =
* {{Extinct}}''[[Bonacynodon]]''
* {{Extinct}}''[[Probainognathus]]''
}}

'''Probainognathidae''' is an extinct [[Family (biology)|family]] of [[insectivorous]] [[cynodont]]s which lived in what is now [[South America]] during the [[Middle Triassic|Middle]] to [[Late Triassic]]. The family was established by [[Alfred Romer]] in 1973 and includes two genera, ''[[Probainognathus]]'' from the [[Chañares Formation]] of Argentina and ''[[Bonacynodon]]'' from the [[Dinodontosaurus Assemblage Zone|''Dinodontosaurus'' Assemblage Zone]] of Brazil. Probainognathids were closely related to the clade [[Prozostrodontia]], which includes [[mammal]]s and their close relatives.