Dortokidae is an extinct family of freshwater pan- pleurodiran turtles, known from the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

and

Paleocene The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ...

of Europe. Only four species have been named, but indeterminate fossils show that they were abundant across western and eastern-central Europe during the Cretaceous. The family is only known from postcranial remains.

Genera

* '' Eodortoka'' Pérez-García, Gasulla, and Ortega 2014

Wessex Formation The Wessex Formation is a fossil-rich England, English geological formation that dates from the Berriasian to Barremian Stage (stratigraphy), stages of the Early Cretaceous. It forms part of the Wealden Group and underlies the younger Vectis Form ...

, United Kingdom Early Cretaceous (

Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.6 ± 2 Ma and 125.77 (million years ago). The Hauterivian is preceded by the Valangi ...

Barremian The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 125.77 Ma (million years ago) and 121.4 ± 1.0 Ma (Historically, this stage was placed at 129.4 million to approximately 125 million years ago) It is a ...

)''''

Arcillas de Morella Formation The Arcillas de Morella Formation is a geological formation in Spain whose strata date back to the Barremian stage of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et ...

, Spain, Early Cretaceous (

Aptian The Aptian is an age (geology), age in the geologic timescale or a stage (stratigraphy), stage in the stratigraphic column. It is a subdivision of the Early Cretaceous, Early or Lower Cretaceous epoch (geology), Epoch or series (stratigraphy), S ...

) * '' Dortoka'' Lapparent de Broin and Murelaga, 1999 Laño site, Spain, (probably also present in southern France) Late Cretaceous (

Campanian The Campanian is the fifth of six ages of the Late Cretaceous epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campa ...

Maastrichtian The Maastrichtian ( ) is, in the International Commission on Stratigraphy (ICS) geologic timescale, the latest age (geology), age (uppermost stage (stratigraphy), stage) of the Late Cretaceous epoch (geology), Epoch or Upper Cretaceous series (s ...

) Sînpetru Formation, Romania, Late Cretaceous (Maastrichtian) * '' Ronella'' Lapparent de Broin in Gheerbrant et al. 1999

Jibou Formation Jibou (; ; ; ) is a town in Sălaj County, Transylvania, Romania. In 2021 it had a population of 9,677. Jibou includes the town proper and other four villages: Rona ( Hungarian: ''Szilágyróna''), Cuceu (''Kucsó''), Husia (''Hosszúújfalu''), a ...

, Romania

(

Thanetian The Thanetian is, in the International Commission on Stratigraphy, ICS Geologic timescale, the latest age (geology), age or uppermost stage (stratigraphy), stratigraphic stage of the Paleocene epoch (geology), Epoch or series (stratigraphy), Serie ...

) (alternatively considered a species of ''Dortoka'') An indeterminate dortokid is also known from the Hauterivian-Barremian aged

El Castellar Formation The El Castellar Formation is a geological Formation (geology), formation in La Rioja and Teruel, Spain whose strata date back to the possibly the Valanginian to the Barremian stages of the Early Cretaceous. Dinosaur remains are among the fossils ...

in Spain.

References

{{Taxonbar, from=Q16550582 Pleurodira Prehistoric turtles