pennsylvanian   (TTS Sound)

The pennsylvanian has 2 Senses.

• upper carboniferous, pennsylvanian period, upper carboniferous period, pennsylvanian
• from 310 million to 280 million years ago; warm climate; swampy land
• 3億1000万年前から2億8000万年前まで

• keystone stater, pennsylvanian
• a native or resident of Pennsylvania
• ペンシルバニアの原住民か居住者