Input (grade 13): Paleothyris was a small, agile, anapsid reptile which lived in the Middle Pennsylvanian epoch in Nova Scotia (approximately 312 to 304 million years ago).
Output (grade 11): Paleothyris was a small, agile, anapsid reptile which lived in the Pennsylvanian epoch in Nova Scotia (about 312 to 304 million years ago).