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Iguanidae: This family traditionally encompassed a large number of genera and species. However, Frost and coworkers redefined the family in 1989 and again in 2001 to include only the genera given below, while assigning the other genera to separate families. Subsequent authors accepted the new arrangement to various degrees. Nevertheless, some authors still use the previous classification that includes the Crotaphytidae, Hoplocercidae, Opluridae, Phrynosomatidae, Polychrotidae, and Tropiduridae in the family Iguanidae. |
