Jizera Formation Explained

Jizera Formation
Type:	Geological formation
Age:	Turonian, ~
Period:	Turonian
Prilithology:	Marlstone, sandstone
Namedfor:	Jizera Mountains
Coordinates:	49.9833°N 30°W
Unitof:	Middle Iser Shales
Underlies:	Teplice Formation
Overlies:	Bílá Hora Formation
Thickness:	up to 420m (1,380feet)
Extent:	Bohemian Cretaceous Basin

The Jizera Formation is a geologic unit of Late Cretaceous (Turonian) age, located in the Czech Republic. It is a unit of the Bohemian Cretaceous Basin.^{[1] [2]} It consists of fluvial to shallow marine sediments and pterosaur fossils are among the remains found in the Jizera Formation. The type locality of the Jizera Formation is a quarry in Zářecká Lhota.^[3]

Paleofauna

• Cretornis hlavaci - "a complete humerus (upper arm bone), an ulna, radius, wrist and two phalanges of the wing finger"^[4]

See also

• List of fossiliferous stratigraphic units in Europe

Notes and References

1. 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
2. 10.1016/j.cretres.2015.02.011. Cretornis hlavaci Frič, 1881 from the Upper Cretaceous of Czech Republic (Pterosauria, Azhdarchoidea). Cretaceous Research. 55. 164–175. 2015. Averianov . A. . Ekrt . B. . 2015CrRes..55..164A.
3. A. Fritsch. (1881). Über die Entdeckung von Vogelresten in der böhm. Kreideformation. Sitzungsberichte der Königlichen Böhmischen Gesellschaft der Wissenschaften 1880:275-276
4. 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