assemblage zone

assemblage zone

[ə′sem·blij ‚zōn]
(paleontology)
A biotstratigraphic unit defined and identified by a group of associated fossils rather than by a single index fossil.
References in periodicals archive ?
Based on these species, a single planktonic foraminiferal biozone has been reported named as Globotruncana-Globotruncanita-Hetrohelix Assemblage Zone of the Maastrichtian age.
This assemblage corresponds to the Eulepidina-Nephrolepidina-Nummulites Assemblage Zone (3) of [1].
The fossils are from rocks forming the Pristerognathus Assemblage Zone of the Beaufort Group in South Africa.
One pollen and spore assemblage zone A was determined from the samples from Lake Al-Hijaneh (Fig.
Since the purpose of this paper is to determine the response of vegetation to the cooling marking the onset of the Younger Dryas and warming marking the termination of this event, vegetation reconstructions will be limited to the Younger Dryas pollen assemblage zone, and the zones immediately preceding it and following it.
Five biozones has recognized from benthic foraminifera including four Acme zones and one Assemblage zone.
Fossil assemblage of this section can be compared to Omphalocyclus-Loftusia assemblage zone, Wynd, 1965, which can be seen in Interior Fars in upper parts of Tarbur Formation and in silty layers of Sachun Formation base.
Lepidocyclina (Eulepidina) dilitata-Operculina complanata Assemblage Zone
Marker Assemblage zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India.