अर्थ : From 310 million to 280 million years ago. Warm climate. Swampy land.
पर्यायवाची : pennsylvanian, upper carboniferous, upper carboniferous period
Pennsylvanian period ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Pennsylvanian period ka matlab kya hota hai?