adjective🔗ShareपुराजीवीOf 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. "मेरी बेटी अपनी भूविज्ञान कक्षा में पुराजीवी युग के बारे में सीख रही है, उस प्राचीन समय के समुद्री जीवों के जीवाश्मों का अध्ययन कर रही है।geologyagetimehistoryscienceChat with AIVocabulary GamePractice Reading
