- The flat disc-shaped calcareous shell of a foraminiferan, found commonly as a fossil up to 8 cm across in marine Tertiary deposits.
More example sentences
- Family Nummulitidae, order Foraminiferida: several genera, including Nummulites
- 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.
More definitions of nummuliteDefinition of nummulite in:
- The US English dictionary