The Rupel ( Dutch pronunciation: [ˈrypəl] ) is a tidal river in northern Belgium , right tributary of the Scheldt . It is about 12 kilometres (7 mi) long. It flows through the Belgian province of Antwerp . It is formed by the confluence of the rivers Dijle and Nete , in Rumst . It flows into the Scheldt at Schelle . Towns along the Rupel are Rumst, Boom , Niel and Schelle . The Rupel is navigable, and forms part of the waterway to Brussels .
5-510: The Rupelian Age of the Oligocene Epoch in the geological time scale is named after this river. This Antwerp Province location article is a stub . You can help Misplaced Pages by expanding it . This article related to a river in Belgium is a stub . You can help Misplaced Pages by expanding it . Rupelian The Rupelian is, in the geologic timescale , the older of two ages or
10-620: The group and the stage was made in the second half of the 20th century, when stratigraphers saw the need to distinguish between lithostratigraphic and chronostratigraphic names. The base of the Rupelian Stage (which is also the base of the Oligocene Series) is at the extinction of the foraminiferan genus Hantkenina . An official GSSP for the base of the Rupelian has been assigned in 1992 ( Massignano , Italy). The transition with
15-639: The Chattian has also been marked with a GSSP in August 2017 ( Monte Conero , Italy). The top of the Rupelian Stage (the base of the Chattian) is at the extinction of the foram genus Chiloguembelina (which is also the base of foram biozone P21b). The Rupelian overlaps the Orellan , Whitneyan and lower Arikareean North American Land Mammal Ages , the upper Mustersan and Tinguirirican South American Land Mammal Ages ,
20-778: The lower of two stages of the Oligocene Epoch / Series . It spans the time between 33.9 and 27.82 Ma . It is preceded by the Priabonian Stage (part of the Eocene) and is followed by the Chattian Stage. The stage is named after the small river Rupel in Belgium, a tributary to the Scheldt . The Belgian Rupel Group derives its name from the same source. The name Rupelian was introduced in scientific literature by Belgian geologist André Hubert Dumont in 1850. The separation between
25-562: The uppermost Headonian , Suevian and lower Arvernian European Land Mammal Mega Zones (the Rupelian spans the Mammal Paleogene zones 21 through 24 and part of 25 ), and the lower Hsandgolian Asian Land Mammal Age . It is also coeval with the only regionally used upper Aldingan and lower Janjukian stages of Australia, the upper Refugian and lower Zemorrian stages of California and the lower Kiscellian Paratethys stage of Central and eastern Europe. Other regionally used alternatives include
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