Early Terrestrial Tetrapod Vertebrate footprint on Carboniferous shale from Plainville, Massachusetts
Early Terrestrial Tetrapod Vertebrate footprint on Carboniferous shale from Plainville, Massachusetts
Early Terrestrial Tetrapod Vertebrate footprint on Carboniferous shale from Plainville, Massachusetts
Early Terrestrial Tetrapod Vertebrate footprint on Carboniferous shale from Plainville, Massachusetts

Early Terrestrial Tetrapod Vertebrate footprint on Carboniferous shale from Plainville, Massachusetts

This piece is not for sale.

ICHNOGENUS: Notalacerta missouriensis

SPECIES: Unknown

LOCATION: Plainville, Massachusetts

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. 

An artist's impression of ancient reptiles as they begin to conquering dry land for the first time

 

Carboniferous Period, fifth interval of the Paleozoic Era, succeeding the Devonian Period and preceding the Permian 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 the Paleozoic Era and the second longest period of the Phanerozoic Eon. The rocks that were formed or deposited during the period constitute the Carboniferous System. The name Carboniferous refers to coal-bearing strata that characterize the upper portion of the series throughout the world.