Newfound bat skeletons are the oldest on record
The 52.5-million-year-old fossils show the ancient fliers were surprisingly modern
![A photo of a fossilized bat skeleton](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/04/041123_sp_bat-skeleton_feat.png?fit=1030%2C580&ssl=1)
Two complete fossils of the newfound bat species Icaronycteris gunnelli (one shown) are the oldest known bat skeletons, researchers say.
Rietbergen et al/PLOS ONE 2023