The flat disk-shaped calcareous shell of a foraminifer, found commonly as a fossil up to 8 cm across in marine Tertiary deposits.
- Family Nummulitidae, order Foraminiferida: several genera, including Nummulites
More example sentences
- The occurrence higher in the succession of nummulites and neritic fossils indicates overall shallowing upwards.
- They found that the Eocene nummulites lived in nutrient-rich environments during a warm climatic phase.
- In the seas, the calcareous nannofossils were still in evidence but in shallow waters the benthonic nummulite and other larger foraminifera became very abundant.
early 19th century: from Latin nummulus (diminutive of nummus 'coin') + -ite1.
Definition of nummulite in:
- The British & World English dictionary