FIGURE 1. A map of Europe with Poland (orange) and the location of the village of H?udno (asterisk) in southeastern Poland, where the specimen ZPALWr. A/4005 was found.
FIGURE 2. Specimen ZPALWr. A/4005 of a passerine bird foot from southeastern Poland, H?udno, late Oligocene, ca. 25 m.y.a. 1, Main slab; 2, Counter slab; 3, Interpretative drawings of the main slab and counter slab. Abbreviations: d I, pp – digit I, proximal phalanx; d I, up – digit I, ungual phalanx; d II, p1 – digit II, phalanx 1; d II, p2 – digit II, phalanx 2; d II, up – digit II, ungual phalanx; d III, p1 – digit III, phalanx 1; d III, p2 – digit III, phalanx 2; d III, p3 – digit III, phalanx 3; d III, up – digit III, ungual phalanx; d IV, p1 – digit IV, phalanx 1; d IV, p2 – digit IV, phalanx 2; d IV, p3 – digit IV, phalanx 3; d IV, p4 – digit IV, phalanx 4; d IV, up – digit IV, ungual phalanx; omt I – os metatarsale I; tmt – tarsometatarsus; tbt – tibiotarsus (fragment of the condylus lateralis).
FIGURE 3. Specimen ZPALWr. A/4005 of a passerine bird foot from southeastern Poland, H?udno, late Oligocene, ca. 25 m.y.a. 1, Enlarged tarsometatarsus from main slab; 2, Enlarged ungual phalanges (claws) of digits III and IV from main slab; 3, Enlarged distal tarsometatarsus from counter slab; Abbreviations: d III, up – digit III, ungual phalanx; ht – hypotarsus; omt I – os metatarsale I; tf – tuberculum flexorium; tm II – trochlea metatarsi II; tm III – trochlea metatarsi III; tm IV – trochlea metatarsi IV; tmt – tarsometatarsus; tbt – tibiotarsus (fragment of the condylus lateralis).
