''Cretotortor'' is an extinct genus of

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserve ...

beetle Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...

s in the family

Gyrinidae The whirligig beetles are water beetles, comprising the family Gyrinidae, that usually swim on the surface of the water if undisturbed, though they swim underwater when threatened. They get their common name from their habit of swimming rapidly ...

, containing the following species:Gyrinidae Species List
at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 9 May 2012. * '' Cretotortor archarensis'' Ponomarenko, 1977 Darmakan Formation, Russia, Paleocene (

Danian The Danian is the oldest age or lowest stage of the Paleocene Epoch or Series, of the Paleogene Period or System, and of the Cenozoic Era or Erathem. The beginning of the Danian (and the end of the preceding Maastrichtian) is at the Cretac ...

) * '' Cretotortor zherichini'' Ponomarenko, 1973 Kzyl-Zhar, Kazakhstan, Late Cretaceous (

Turonian The Turonian is, in the International Commission on Stratigraphy, ICS' geologic timescale, the second age (geology), age in the Late Cretaceous epoch (geology), Epoch, or a stage (stratigraphy), stage in the Upper Cretaceous series (stratigraphy), ...

)

References

Gyrinidae Fossil taxa described in 1973 Adephaga genera Fossil beetle genera {{paleo-beetle-stub