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Jyutping ban1 zik6 faat3 nei4 aa3 sai3
Pinyin bīn xì fǎ ní yà shì

Definitions (Wiktionary)
  1. name
    the Pennsylvanian subperiod (part of the Carboniferous period, spanning from 323.2 to 298.9 million years ago)

[----]

Jyutping ban1 zik6 faat3 nei4 aa3 sai3
Pinyin bīn xī fǎ ní yà shì

Definitions (Wiktionary)
  1. name
    the Pennsylvanian subperiod (part of the Carboniferous period, spanning from 323.2 to 298.9 million years ago)