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Tyrannasorus rex : ウィキペディア英語版 | Tyrannasorus rex
''Tyrannasorus rex'' was a species of beetle known to exist in the Miocene epoch. A fossilized example scarabaeoid was found embedded in the amber resin of ''Hymenaea protera'' in the Dominican Republic. The species was described by Brett C. Ratcliffe and Federico Carlos Ocampo in 2001.〔(''Tyrannasorus rex'' Raltliffe and Ocampo ) (abstract)〕 == Holotype ==
The observed specimen is assumed to be female based on similarities to the female specimens of the genus ''Apalonychus''. She was trapped in the resin produced by ''Hymenaea protera'', now also extinct. The amber was previously dated to Oligocene or Eocene, but these datings are since considered incorrect, and it is accepted that the amber was formed between late Early Miocene and Middle Miocene (15–20 million years ago). The amber came from Dominican Republic, probably from the mountain range north of Santiago de los Caballeros. It is too dark for ventral characteristics of the insect's body to be observed.〔
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