石炭紀

Reading

Kana: せきたんき
Romaji: sekitanki
Kana
Romaji

Definition

1

the Carboniferous Period

Kanji

Readings: セキ、 シャク、 コク、 いし
Meaning: stone
Readings: タン、 すみ
Meanings: charcoal, coal
Reading: 
Meanings: chronicle, account, narrative, history, annals, geologic period