[ケイーティーきょうかい(K−T境界);ケイティーきょうかい(KT境界), kei-tei-kyoukai ( K-T kyoukai ); keitei-kyoukai ( KT kyoukai )](n) K-T boundary (between the Cretaceous Period and the Tertiary Period)[Add to Longdo]
[ケイーティーきょうかい(K−T境界);ケイティーきょうかい(KT境界), kei-tei-kyoukai ( K-T kyoukai ); keitei-kyoukai ( KT kyoukai )](n) K-T boundary (between the Cretaceous Period and the Tertiary Period)[Add to Longdo]