This species was described in 2017, it is one of the many birds from the Messel shale, that are somehow related to living ones but on the other hand again … are completely different.
This one is thought to be related to the Charadriiformes, and it may indeed have been a member of the jacana family (Jacanidae).
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BTW: I only recently learned that the age of the Messel shale spans from the upper Early – to the lower Middle Eocene.
So not every bird from there is from the Middle Eocene.
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edited: 04.08.2019