From Fossil Lake, which was teeming with life during the early Eocene, about 52 million years ago. Only one frog has ever been found at the formation. The single specimen pictured here measures just 1.6 inches (4 cm) long.
Titanoboa! Sort of. (An art exhibit with an aluminium giant snake; Titanoboa was smaller but still huge! http://www.thisiscolossal.com/2013/05/a-giant-aluminum-snake-skeleton-rises-from-a-pool-of-water-at-the-queensland-art-gallery/)