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Karabaglyar Formation
The Karabaglyar Formation is a geologic formation in Armenia and Azerbaijan. It preserves fossils dated to the Changhsingian age of the Permian period and the Induan age of the Triassic period, straddling the Permian-Triassic boundary.Karabaglyar Formation at .org Fossil content The following fossils have been reported from the formation:Kotlyar et al., 1993 ;Ammonites * '' Eumorphotis venetiana'' * ''[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (stratigraphy)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnishik Formation
The Gnishik Formation is a Formation (geology), geologic formation in Armenia, Azerbaijan and Iran. It preserves fossils dated to the Wordian age of the Permian Period (geology), period.Gnishik Formation in the Paleobiology Database The thin-bedded limestones of the formation reach a thickness of in the Julfa section of northwestern Iran and in the Arpa River valley of Armenia. The sediments were deposited in an open marine setting at the northern edge of the Paleo-Tethys Ocean. The coral ''Wentzellophyllum, Wentzellophyllum gnishikense'' was named after the formation. Description The Gnishik Formation was first formally described by Arakelyan in 1964, based on a section in the Gnishik River valley, after which the formation was named. The forma ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fossiliferous Stratigraphic Units In Azerbaijan
This is a list of fossiliferous stratigraphic units in Azerbaijan. __NOTOC__ List of fossiliferous stratigraphic units See also * Lists of fossiliferous stratigraphic units in Europe ** List of fossiliferous stratigraphic units in Armenia ** List of fossiliferous stratigraphic units in Georgia (country), List of fossiliferous stratigraphic units in Georgia ** List of fossiliferous stratigraphic units in Russia ** List of fossiliferous stratigraphic units in Turkey * Lists of fossiliferous stratigraphic units in Asia References {{DEFAULTSORT:Fossiliferous stratigraphic units in Azerbaijan Geologic formations of Azerbaijan, Paleontology in Azerbaijan, . Fossiliferous stratigraphic units of Asia, Azerbaijan Fossiliferous stratigraphic units of Europe, Azerbaijan Azerbaijan-related lists, Fossiliferous stratigraphic units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fossiliferous Stratigraphic Units In Armenia
This is a list of fossiliferous stratigraphic units in Armenia. __NOTOC__ List of fossiliferous stratigraphic units See also * Geology of Armenia * List of fossiliferous stratigraphic units in Azerbaijan * List of fossiliferous stratigraphic units in Georgia * List of fossiliferous stratigraphic units in Russia References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Russia Geologic formations of Russia, . Paleontology in Russia, . Fossiliferous stratigraphic units of Asia, Russia Fossiliferous stratigraphic units of Europe, Russia R ... * List of fossiliferous stratigraphic units in Turkey References {{DEFAULTSORT:Fossiliferous stratigraphic units in Armenia Fossiliferous stratigraphic units Paleontology in Armenia Armenia Armenia Fossiliferous stratigraphic units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claraia
''Claraia'' is an extinct genus of scallop-like bivalve molluscs that lived from the Capitanian stage of the Late Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago. Fossils have been found worldwide in North America, Europe, Asia, Africa, and Australia. These are common fossils subsequent to the Permian-Triassic boundary, suggesting that the genus experienced rapid diversification during and after the Permian–Triassic extinction event, around 251.4 million years ago. Ecology ''Claraia'' may have been an opportunistic genus that filled the niche of many benthic invertebrates such as brachiopods that were heavily impacted by the extinction. A narrowing of the byssal notch and a trend towards a smoother shell in species of ''Claraia'' over time may have led to increased mobility. This increase in mobility may have been an advantage over more sessile animals during the extinction event.Feng, Qinglai; Gu, Songzhu; He, Weihong; Meng, Youyan; Weldon, Elis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claraia Wangi
''Claraia'' is an extinct genus of scallop-like bivalve molluscs that lived from the Capitanian stage of the Late Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago. Fossils have been found worldwide in North America, Europe, Asia, Africa, and Australia. These are common fossils subsequent to the Permian-Triassic boundary, suggesting that the genus experienced rapid diversification during and after the Permian–Triassic extinction event, around 251.4 million years ago. Ecology ''Claraia'' may have been an opportunistic genus that filled the niche of many benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "t ... invertebrates such as brachiopods that were heavily impacted by the extinction. A narrowing of the byssal notch and a trend towards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claraia Stachei
''Claraia'' is an extinct genus of scallop-like bivalve molluscs that lived from the Capitanian stage of the Middle Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago. Fossils have been found worldwide in North America, Europe, Asia, Africa, and Australia. These are common fossils subsequent to the Permian-Triassic boundary, suggesting that the genus experienced rapid diversification during and after the Permian–Triassic extinction event, around 251.9 million years ago, making it a Disaster taxon Ecology ''Claraia'' may have been an opportunistic genus that filled the niche of many benthic invertebrates such as brachiopods that were heavily impacted by the extinction. A narrowing of the byssal notch and a trend towards a smoother shell in species of ''Claraia'' over time may have led to increased mobility. This increase in mobility may have been an advantage over more sessile animals during the extinction event.Feng, Qinglai; Gu, Songzhu; He, Weihon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
