白垩系
bái'è​xì

Cretaceous System

  • created sense approved 白垩系/白堊系 · bái'è​xì · Cretaceous System — "Initial import from upstream dictionary"

    白垩系 / 白堊系

    bái'è​xì

    Cretaceous System

    The sequence of rock layers formed during the Cretaceous Period, positioned between the Jurassic and Paleogene systems.

    白垩 (literal) → 白垩/白堊 · bái'è · chalk 系 (bound) → 系 · xì · system (geology)

    Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition

    created sense