Английская Википедия:Berriasella
Шаблон:Short description Шаблон:Automatic taxobox
Berriasella is a discoidal evolute perisphinctacean ammonite, and type genus for the neocomitid subfamily Berriasellinae. Its ribbing is distinct, consisting of both simple and bifurcated ribs that extend from the umbilical seam across the venter; its whorl section generally compressed, the venter more or less narrowly rounded. The species Berriasella jacobi traditionally has been regarded an index fossil defining the base of the Cretaceous, however since 2016 this had been replaced by the first occurrence of Calpionella alpina. Some authors regard B. jacobi as instead belonging to the genus Strambergella.[1]
Berriasella, named by Uhlig, 1905, is known from the late Upper Jurassic, Tithonian, to the early Lower Cretaceous, Berriasian and has a fairly worldwide distribution.[2]
Distribution
Fossils of Berriasella have been found in:
- Jurassic
- Latady and Himalia Ridge Formations, Antarctica
- Los Molles Formation, Argentina
- Guasasa Formation, Cuba
- Chia Gara Formation, Iraq
- Muktinath, Nepal
- Punta Moreno Formation, Peru
- Hajar Formation, Yemen
- Cretaceous
- President Beaches Formation, Antarctica
- Guchuochun Formation, China
- Buenavista Breccia, Colombia
- Stramberk Formation, Czech Republic
- France
- Szentivánhegy Limestone, Hungary
- Giumal Sandstone, India
- Shal Formation, Iran
- Chia Gara Formation, Iraq
- Carbonera and Taraises Formations, Mexico
- Pieniny Limestone and Rogozno Formation, Poland
- Chigan Formation, Russia
- Tollo and Miravetes Formations, Spain
- Dvuyakornaya Formation, Ukraine
- Hajar Formation, Yemen
- Lo valdes Formation, Chile
References
Further reading
- Английская Википедия
- Perisphinctoidea
- Ammonitida families
- Index fossils
- Tithonian first appearances
- Berriasian life
- Early Cretaceous genus extinctions
- Cretaceous ammonites
- Jurassic ammonites
- Ammonites of Asia
- Cretaceous China
- Fossils of China
- Fossils of India
- Fossils of Iraq
- Fossils of Iran
- Fossils of Nepal
- Fossils of Yemen
- Ammonites of Antarctica
- Ammonites of Europe
- Fossils of the Czech Republic
- Cretaceous France
- Fossils of France
- Fossils of Hungary
- Fossils of Poland
- Cretaceous Russia
- Fossils of Russia
- Cretaceous Spain
- Fossils of Spain
- Fossils of Ukraine
- Ammonites of North America
- Jurassic Cuba
- Fossils of Cuba
- Jurassic Mexico
- Cretaceous Mexico
- Fossils of Mexico
- Ammonites of South America
- Jurassic Argentina
- Cretaceous Argentina
- Fossils of Argentina
- Cretaceous Colombia
- Fossils of Colombia
- Jurassic Peru
- Fossils of Peru
- Fossil taxa described in 1905
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