Figure 7 in On the osteology and phylogenetic affinities of the Pseudasturidae - Lower Eocene stem-group representatives of parrots (Aves, Psittaciformes)

Figure 7. Distal end of left tarsometatarsus in comparison (upper row: distal view, lower row: plantar view). (A) cf. Pseudastur macrocephalus (Pseudasturidae, BMNH A 6184; Eocene) (B) Myiopsitta monachus (Psittacidae; recent); (C) Coua cristata (Cuculidae; recent); (D) Otus scops (Strigiformes; recent); (E) Monasa nigrifrons (Bucconidae; recent); (F) cf. Primozygodactylus sp. (Primoscenidae, Primoscenidae; Eocene), after Mayr (1998b); (G) Zygodactylus grivensis (Zygodactylidae, Piciformes; Miocene), after Mayr (1998b); (H) Lybius bidentatus (Capitonidae, Piciformes; recent). The trochleae metatarsorum II-IV (Roman numerals) and the trochlea accessoria (Acc) are indicated. Arabic numerals indicate: 1 – tendineal furrow along medial side of basis of trochlea metatarsi IV; 2 – furrow for tendon of musculus flexor perforatus digiti IV. Scale bars equal 5 mm.