Schlagwort-Archive: Poland

Winnicavis gorskii Bocheński, Tomek, Wertz, Happ, Bujoczek & Świdnicka

This is the “newest” of the European Oligocene birds with “brittly limbs”, this time only the wingbones are preserved. These are unlike the wingbones of any other passerine bird known so far, extant or extinct.

The bird was small, about the size of a Great Tit (Parus major L.), I will see if I am able to make some kind of reconstruction, whatsoever. [1]



[1] Zbigniew M. Bocheński, Teresa Tomek, Krzysztof Wertz, Johannes Happ, Małgorzata Bujoczek & Ewa Świdnicka: Articulated avian remains from the early Oligocene of Poland adds to our understanding of Passerine evolution. Palaeontologia Electronica 21(2). 2018


Let’s have a little update here.

I’ve made a little sketch, based on a Great Tit, however, knowing that this bird was not related to any of the modern Passeriformes, I thought of a little songbird-like creature resembling some of the Australian/Papuan “primitive” songbirds.


my reconstruction, the bird reached a size of about 15 cm or in other words was indeed about the size of a Great Tit; remember, only the wing bones and some impressions of several wing feathers are known


edited: 06.04.2020


It seems that the Oligocene epoch in Europe produced a lot of birds with brittly legs, since this nameless thing (ISEA AF/JAM1 is the ‘name’ given to the bones) is the next bird known only from a single leg (the twig-like thing between the drawing and the pen).

It appears to have been related to the Apodiformes or the Upupiformes, and according to my reconstruction may have reached a length of only about 6 cm.

Gosh, I need to use colors again at last!!!



>Zbigniew M. Bochenski; Teresa Tomek; Ewa Swidnicka: A tiny short-legged bird from the early Oligocene of Poland. Geologica Carpathica 67(5): 463-469. 2016