古生代

Gǔshēng Dài
  1. (geology) the Paleozoic era (part of the Phanerozoic eon, spanning from 541 to 252.17 million years ago)
  2. the Paleozoic era (part of the Phanerozoic eon, spanning from 541 to 252.17 million years ago)

Wiktionary

Homographs

古生代 Gǔshēngdài Paleozoic, geological era 545-250m years ago, covering Cambrian 寒武紀, Ordovician 奧陶紀, Silurian 志留紀, Devonian 泥盆紀, Carboniferous 石炭紀, Permian 二疊紀

Entry Composition

=1 古 Gǔ surname Gu
=1 古 gǔ
  1. ancient
  2. old
  3. paleo-
=1 古 gù
  1. (obsolete on its own in Standard Chinese) alternative form of 固 (gù)
  2. (obsolete on its own in Standard Chinese) alternative form of 故 (gù)
  3. alternative form of 固 (gù)
  4. alternative form of 故 (gù)
=1 古 kū
  1. (obsolete on its own in Standard Chinese) only used in 古成
  2. only used in 古成
2 生 shēng
  1. to be born
  2. to give birth
  3. life
  4. to grow
  5. raw
  6. uncooked
  7. student
3 代 dài
  1. to be a substitute for; to act on behalf of; to replace; to substitute
  2. generation; dynasty; age; period; (historical) era; (geological) eon