Nanhsiungchelyidae

Nanhsiungchelyidae is an extinct family of land turtles known from Cretaceous deposits in Asia and North America.

According to phylogenetic analyses, Nanhsiungchelyidae is the sister group to Adocidae, and thus both are included within the clade Adocusia.

Nanhsiungchelyidae is split into two major clades, one including most of the predominantly Asian species (Jiangxichelys, Anomalochelys, etc.)

Before the redescription of Nanhsiungchelys in 2018, the different species of Zangerlia were often recovered as being in a clade together, on the opposite side of the Basilemys-clade.

[6][7] However, the phylogenetic analysis in Tong & Li (2018) does not recover this clade, instead spreading the different species out in the tree, recovering the type species as closer to Adocus than the others, which are placed in the clade that includes Jiangxichelys, Hanbogdemys, Anomalochelys and Nanhsiungchelys.