AGE: Carboniferous, Pennsylvanian in age, 323.2 million years ago to 298.9 million years ago
These fossils are particularly precious to me, as they are found within 3 miles of where my house is located. Long before the Dinosaurs, The evolution of reptiles was spurred by the increasingly cold, dry climate of the late Carboniferous period.
Carboniferous Period, fifth interval of the Paleozoic Era, succeeding theDevonian Periodand preceding thePermian Period. In terms of absolute time, the Carboniferous Period began approximately 358.9 million years ago and ended 298.9 million years ago. Its duration of approximately 60 million years makes it the longest period of thePaleozoic Eraand the second longest period of thePhanerozoic Eon. The rocks that were formed or deposited during the periodconstitutethe Carboniferous System. The name Carboniferous refers tocoal-bearing strata that characterize the upper portion of the series throughout the world.