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Famennian Stage
(redirected from Famennian)

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Famennian Stage 

the upper stage of the upper series of the Devonian system. The Famennian stage was identified by the Belgian geologist A. Dumont in 1855. In its type locality, the stage is represented by sandstones, shales, and limestones containing brachiopods and other organic remains; in the Rhine region of West Germany there are bathypelagic shales and limestones containing cephalopods.

The Famennian stage is divided into two or, occasionally, three substages and several biozones (as many as five). Deposits of the Famennian stage are widespread in the USSR. They are represented by limestones and sand-shale strata, as well as by variegated continental formations and lagoon formations, that is, evaporites formed by the retreat of the sea and by drainage and salination in regions of sediment accumulation.
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Rare chondrichthyan buccopharyngeal scales (= oral denticles) and teeth have been documented from the Givetian (Middle Devonian) of Estonia and from the Famennian (Upper Devonian) of Latvia (Ivanov & Luksevics 1994; Mark-Kurik & Karatajute-Talimaa 2004).
Karksilepis parva gen. et sp. nov. (Chondrichthyes) from the ... by Marss, Tiiu; Kleesment, Anne; Niit, Moonika / Estonian Journal of Earth Sciences
It produces from a 10 sq km Famennian (Upper Devonian carbonate) reservoir at a depth of 3,200 m (see Vol.
RUSSIA - The Joint Ventures by APS Review Gas Market Trends
The extinction began an extended interval of low biodiversity known as the Famennian stage.
New fossils threaten an extinction theory by Harder, B. / Science News
 
 
 
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