structural:scholar_edition
Palaeontology

Fossil Cicadomorpha first appeared in the Late Triassic. The superfamily Palaeontinoidea contains three families. The Upper Permian Dunstaniidae are found in Australia and South Africa, and also in younger rocks from China. The Upper Triassic Mesogereonidae are found in Australia and South Africa. This group, though, is currently thought to be more distantly related to Cicadomorpha than previously thought.

The Palaeontinidae or "giant cicadas" (though only distantly related to true cicadas) come from the Jurassic and Lower Cretaceous of Eurasia and South America. The first of these was a fore wing discovered in the Taynton Limestone Formation of Oxfordshire, England; it was initially described as a butterfly in 1873, before being recognised as a cicada-like form and renamed Palaeontina oolitica.

Tettigarctidae and Cicadidae had diverged from each other prior to or during the Jurassic, as evidenced by fossils related to both lineages present by the Middle Jurassic (~ 165 million years ago) The morphology of well preserved fossils of early relatives of Cicadidae from the mid Cretaceous Burmese amber of Myanmar suggests that unlike many modern cicadids, they were either silent or only made quiet sounds. Most fossil Cicadidae are known from the Cenozoic, and the oldest unambiguously identified modern cicadid is Davispia bearcreekensis (subfamily Tibicininae) from the Paleocene, around 56-59 million years ago.