Monday, 24.07.2017
Jurassic Forum



[ New messages · Members · Forum rules · Search · RSS ]
Page 1 of 11
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Myczyński R., Jach R. (2009) (Cephalopod fauna and stratigraphy, Lower Jurassic, Tatra Mts)
Myczyński R., Jach R. (2009)
mhornДата: Tuesday, 01.09.2009, 10:34 | Сообщение # 1
Admin
Group: Администраторы
Posts: 1060
Reputation: 0
Status: Offline
Myczyński R., Jach R. (2009) Cephalopod fauna and stratigraphy of the Adnet type red deposits of the Križna unit in the Western Tatra Mountains, Poland // Annales Societatis Geologorum Poloniae. V.79. P.27–39.

Pdf: http://www.asgp.pl/2009/79_1/27-39.pdf

The Lower Jurassic Adnet type red limestones and marlstones (Kliny Limestone Member, Huciska Limestone Formation) of the Križna unit in the Tatra Mountains comprise cephalopod fauna represented by ammonites, belemnites and rarely by nautiloids. Ammonites belong to the families Phyloceratidae, Lytoceratidae, Hildoceratidae and Dactylioceratidae and indicate Early Toarcian Serpentinum Zone, Middle Toarcian Bifrons Zone (most probably Sublevisoni and Bifrons Subzones) and Late Toarcian Pseudoradiosa Zone. Hence, the age of Adnet type deposits may be estimated as Early Toarcian–Late Toarcian. Relatively moderate diversity of ammonite assemblage is noticed. Ammonites and nautiloids are preserved mainly as internal moulds, only some specimens display preserved calcified shells. Part of this macrofauna has resedimented character. Studied ammonite assemblage is closely related to that of the Mediterranean Province.


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Myczyński R., Jach R. (2009) (Cephalopod fauna and stratigraphy, Lower Jurassic, Tatra Mts)
Page 1 of 11
Search:

jurassic.ru © 2017
Free web hostinguCoz