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Onychonycteris finneyi (cast) - National Parks Gallery
The fossils of the Green River Formation's ancient Fossil Lake are remarkable for the broad spectrum of species found here. This 5.5 inch long bat is the most primitive bat known. Claws on each finger of its wi... More
Green River Formation fossil replica, Fossil Butte National Monument, ...
A broad range of species can be found in the Green River Formation's ancient fossil lake. This 5.5-inch long bat is the most primitive bad known to science. Claws on each finger of its wings indicate that it wa... More