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Temporal range: Early Triassic
Holotype in (A) lateral and (B) posterior views, with (C) a cross section of a tooth
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Family: Proterosuchidae
Genus: Ankistrodon
Huxley, 1865
Type species
Ankistrodon indicus
Huxley, 1865
  • Epicampodon Lydekker, 1885
  • Epicampodon indicus (Huxley, 1865) Lydekker, 1885
  • Thecodontosaurus indicus (Huxley, 1865) Huene, 1908
  • Chasmatosaurus indicus (Huxley, 1865) Huene, 1942

Ankistrodon is an extinct genus of archosauriform known from the Early Triassic Panchet Formation of India. First thought to be a theropod dinosaur, it was later determined to be a proterosuchid. The type species is A. indicus, described by prolific British zoologist Thomas Henry Huxley in 1865. One authority in the 1970s classified Ankistrodon as a senior synonym of Proterosuchus.[1]


  1. ^ Romer, A.S. (1972). "The Chañares (Argentina) Triassic reptile fauna. XVI. Thecodont classification". Breviora. 395: 1–24.