noun, noun which may take the genitive case particle 'no'
Paleozoic era
Geological era spanning from about 541 to 252 million years ago. Used in scientific and educational contexts.
Trilobites flourished during the Paleozoic era.
This fossil was discovered in Paleozoic strata.
From 古 (こ, 'old') + 生 (せい, 'life') + 代 (だい, 'era'). A direct translation of the English term 'Paleozoic era'.