World ‘Fish lizard’ fossils found in Swiss Alps showcase some of the largest creatures to ever live April 29, 2022 Scott Gleeson, USA TODAY Comments Off on ‘Fish lizard’ fossils found in Swiss Alps showcase some of the largest creatures to ever live Ichthyosaurs were in the oceans 250 million years ago, spanning 65 feet as some of the largest creatures ever. Swiss Alps fossils provide new details.