白亜紀
type: Concept
modified: 2025-09-18T17:24:40
created: 1980-06-20
pref label: 白亜紀
  transcription: ハクアキ
  transcription: Hakuaki
alt label: Geology, Stratigraphic--Cretaceous
source: 白亜紀の自然史 / 小畠郁生 著
source: 地学辞典
in scheme: topicalTerms
related match: ME553
related match: http://id.ndl.go.jp/class/ndc10/456.57
related match: http://id.ndl.go.jp/class/ndc9/456.57
broader: 中生代