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Miocene and Pliocene ctenodactylids are known from Asia and Africa. In the Oligocene forms cheek-teeth were brachydont, and all known fossil ctenodactylids retained P 4 and p 4, with these teeth showing various stages of reduction.
Source: wiktionary
According to Luckett (1985), Bugge (1985), and George (1985), ctenodactylids are an early offshoot of the hystricognathous rodents. Beintema et al. (1991), stating that no molecular data were available, investigated tissues, blood, and proteins and concluded that it was not yet possible to determine whether ctrnodactylids and hystricognathous rodents "share a common ancestor or are located on separate branches."
Source: wiktionary
Ctenodactylids share many derived characters with the Hystricognathi, but ctenodactylids retain many primitive features and are considered (along with the Diatomyidae) a possible sister group to hystriognath rodents (Dietrlen 2005; Huchon et al. 2007).
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.