adjective🔗Share고생대의Of 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."My daughter is learning about the Paleozoic era in her Earth Science class, studying fossils of sea creatures from that ancient time. "내 딸은 지구 과학 수업에서 고생대 시대를 배우고 있으며, 그 고대 시대의 바다 생물 화석을 연구하고 있습니다.geologyagetimehistoryscienceChat with AIVocabulary GamePractice Reading
