A geological period characterized by the deposition of coal-bearing strata and significant geological activity.
कोयला उत्पन्न करने वाले भूगर्भीय काल का एक हिस्सा
English Usage: The upper carboniferous period is known for its extensive tropical swamp forests.
Hindi Usage: ऊपरी कार्बोनिफेरस काल अपनी विस्तृत उष्णकटिबंधीय दलदली जंगलों के लिए जाना जाता है।
"oopari carboniferas", "upari carboniferas", "oori carboniferas", "oopri carboniferas", "upari karboniferas", "upari carboniferous", "ooparī kārboniferas", "upari karbōnipheras"
