Last Updated
：2025/11/20
Paleozoic
Adjective
Japanese Meaning
古生代：地質学において、約5.42億年前から2.5億年前にかけての時代を指し、カンブリア紀、オルドビス紀、シルリア紀、デボン紀、石炭紀、およびペルム紀が含まれる。
（ comparative ）
（ superlative ）
Quizzes for review
(geology) Of a geologic era within the Phanerozoic eon that comprises the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods from about 542 to 250 million years ago, from the age of trilobites to that of reptiles.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
Paleozoic
The Paleozoic reefs preserved an extraordinary diversity of early marine life.
See correct answer
The Paleozoic reefs preserved an extraordinary diversity of early marine life.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
