Missippian period — noun from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects • Syn: ↑Mississippian, ↑Lower Carboniferous, ↑Lower Carboniferous period • Instance Hypernyms: ↑period, ↑geological period … Useful english dictionary
Lower Carboniferous period — Mississippian Mississippian prop. n. 1. A geological period extending from from 310 million to 345 million years ago; it was associated with an increase of land areas, the presence of primitive ammonites, and emergence of winged insects; called… … The Collaborative International Dictionary of English
geological period — noun a unit of geological time during which a system of rocks formed ganoid fishes swarmed during the earlier geological periods • Syn: ↑period • Hypernyms: ↑geological time, ↑geologic time • Hyponyms: ↑ice age, ↑ … Useful english dictionary
Carboniferous period — noun from 345 million to 280 million years ago • Syn: ↑Carboniferous • Derivationally related forms: ↑carboniferous (for: ↑Carboniferous) • Instance Hypernyms: ↑period, ↑ … Useful english dictionary
Lower Carboniferous period — noun from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects • Syn: ↑Mississippian, ↑Missippian period, ↑Lower Carboniferous • Instance Hypernyms: ↑period, ↑geological period … Useful english dictionary
Mississippian — prop. n. 1. A geological period extending from from 310 million to 345 million years ago; it was associated with an increase of land areas, the presence of primitive ammonites, and emergence of winged insects; called also {Missippian period} and… … The Collaborative International Dictionary of English
Lower Carboniferous — noun from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects • Syn: ↑Mississippian, ↑Missippian period, ↑Lower Carboniferous period • Instance Hypernyms: ↑period, ↑geological period … Useful english dictionary
Mississippian — noun 1. from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects • Syn: ↑Missippian period, ↑Lower Carboniferous, ↑Lower Carboniferous period • Instance Hypernyms: ↑period, ↑geological period … Useful english dictionary
