Diagnoza

Very small terrestrial passerine, in size of the blue tit Cyanistes caeruleus or the chiffchaff Phylloscopus collybita, smaller than Wieslochia weissi and Jamna szybiaki but possibly rather heavy for the size of its wings;  differs from all extant Passeriformes and Jamna szybiaki in having only five (or six?) but not seven caudal vertebrae.

Porównanie

Differs from Wieslochia weissi in possessing coracoid with hooked processus acrocoracoideus and reduced processus procoracoideus and carpometacarpus with broad square distal end of the os metacarpale minus that protrudes far distally; differs from species of the extinct passerine-like family Zygodactylidae in coracoid with hooked processus acrocoracoideus and short and rounded processus lateralis.

Autekologia

All fragments of the beak are slender and lightly-built, which suggests insectivory or frugivory but excludes granivory ; relatively long legs are typical for species that spend much time on the ground while foraging among trees or shrubs like thrushes or wrens.

Występowanie geograficzne

Only the type locality

Zasięg czasowy

Early Oligocene, Rupelian (ca. 29–28.5 Ma)

Materiały muzealne

Only the type specimen

Literatura

Bocheński, Z.M.; Tomek, T.; Wertz, K. & Świdnicka, E. 2013. The third nearly complete passerine bird from the early Oligocene of Europe. Journal of Ornithology 154: 923-931.