Palaeolimnornis

Palaeolimnornis was originally named Limnornis in 1984, but that name was already used for a bird, so it was changed to Palaeolimnornis in 1985.31

The fossils of Palaeolimnornis were found in a bauxite mine in Romania, inside an ancient cave system that was filled with sediment.1

Some scientists think Palaeolimnornis might actually be a pterosaur, not a bird, because its bones are very similar to other pterosaurs.31

The name Palaeolimnornis means 'ancient lake bird', even though it was probably a flying reptile.3

Palaeolimnornis lived during the Berriasian age, which is the very beginning of the Cretaceous period, about 143 to 137 million years ago.3