The Paracryptodira are an extinct infraorder of the Testudines, an order of reptiles which includes tortoises, turtles and terrapins. Initially treated as suborder sister to the Cryptodira, they are now known to be a very primitive lineage inside the Cryptodira according to the most common use of the latter taxon. Some less primitive prehistoric cryptodires (e.g. the "horned turtles", Meiolaniidae) as well as the living forms make up the Eucryptodira.
Paracryptodires according to the obsolete concept were made up of two Cretaceous families, the Pleurosternidae and Baenidae. The former has been found in North America, Europe, and possibly Asia, while the latter is only known to have occurred in North America. According to modern understanding however, the Macrobaenidae and the Neurankylidae are split from the Baenidae to form the superfamily Baenoidea, whose monophyly needs confirmation however. In addition, there are a number of more basal families as well as some of uncertain position with regards to the Baenoidea: