Nummulites
Nummulites A genus of larger Foraminiferida, which have a flattened, discoidal or lenticular test. They lived in warm, shallow, marine waters from the top of the Palaeocene to the Upper Oligocene, and in some areas they are numerous enough to be major rock formers. Many species have been described; they occur at different stratigraphic levels and in different facies associations. Nummulites planulatus, which is Cuisian in age, is often found in association with alveolinids and miliolids in a sandy facies; N. globulus occurs in the Ilerdian of the Pyrenees in marly and sandy facies; N. gizahensis is one of the largest forms and is usually found in sub-reefal limestones of the Upper Lutetian of the Tethyan realm; N. variolarius preferred shallow, calm environments and is found with miliolids in sandy limestones of the Middle and Upper Lutetian.
More From encyclopedia.com
Upper , up·per1 / ˈəpər/ • adj. 1. situated above another part: his upper arm the upper atmosphere. ∎ higher in position or status: the upper end of the soci… Coccolithophorids , coccolithophorids (phylum Prymnesiophyta) A group of unicellular, marine, planktonic algae which are, at least at some stage in their life cycle, cov… Polyplacophora , Polyplacophora (Loricata; chitons, coat-of-mail shells; phylum Mollusca, class Amphineura) A subclass of amphineurans in which seven or eight dorsal… Eifelian , Eifelian (Couvinian)
1. An age in the Middle Devonian Epoch preceded by the Emsian, followed by the Givetian, and dated at 386.0–380.8Ma (Harland et… castellanus , castellanus From the Latin castellum, meaning ‘castle’, the name of a cloud species commonly associated with the upper parts of altocumulus, stratocu… Eodelphis , Eodelphis Known from the Upper Cretaceous of N. America, Eodelphis is a genus of early opossums, marsupials with long prehensile tails. Opossums are…
You Might Also Like
NEARBY TERMS
Nummulites