The Jizera Formation is a

geologic Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Eart ...

unit of

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

(

Turonian The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded by t ...

) age, located in the

Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...

. It is a unit of the Bohemian Cretaceous Basin.Zoltan Csiki-Sava, Eric Buffetaut, Attila Ősi, Xabier Pereda-Suberbiola, Stephen L. Brusatte (2015)
Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago
''Zookeys" 469: 1-161 doi: 10.3897/zookeys.469.8439 It consists of fluvial to shallow marine sediments and

pterosaur Pterosaurs (; from Greek ''pteron'' and ''sauros'', meaning "wing lizard") is an extinct clade of flying reptiles in the order, Pterosauria. They existed during most of the Mesozoic: from the Late Triassic to the end of the Cretaceous (228 to ...

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 preserved ...

s are among the remains found in the Jizera Formation. The type locality of the Jizera Formation is a quarry in Zářecká Lhota.A. Fritsch. (1881). Über die Entdeckung von Vogelresten in der böhm. Kreideformation. ''Sitzungsberichte der Königlichen Böhmischen Gesellschaft der Wissenschaften'' 1880:275-276

Paleofauna

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Cretornis hlavaci ''Cretornis'' is a pterosaur genus from the late Cretaceous period (Turonian stage) of what is now the Jizera Formation in the Czech Republic, dating to about 92 million years ago. It only contains a single species, ''Cretornis hlavaci''. Dis ...

'' - "a complete humerus (upper arm bone), an ulna, radius, wrist and two phalanges of the wing finger"Fritsch, A., (1880), "Ueber die Entdeckung von Vogelresten in der böhmischen Kreideformation (''Cretornis Hlaváči'')", ''Sitzungsberichte der königlichen-böhmischen Gesellschaft der Wissenschaften in Prag'' 1880: 275–276

References

Geologic formations of the Czech Republic Upper Cretaceous Series of Europe Santonian Stage Sandstone formations Fluvial deposits Fossiliferous stratigraphic units of Europe Paleontology in the Czech Republic {{geologic-formation-stub

Paleofauna

See also

References