In 1790, the genus Todus was established, to separate the todies from the kingfishers of genus Alcedo, with the order "Todiformes" being proposed in 1882 but rejected. Currently, in combination with DNA, geographical and evolutionary analysis, it is firmly believed that todies belong to the order Coraciiformes.
In 1790, the genus Todus was created to distinguish todies from kingfishers in the genus Alcedo. The order "Todiformes" was suggested in 1882 but not accepted. Currently, using DNA and evolutionary analysis, it is believed that todies belong to the Coraciiformes order.