FIGURE 4 in On the "screamer-like" birds from the British London Clay: An archaic anseriform-galliform mosaic and a non-galloanserine "barb-necked" species of Perplexicervix

FIGURE 4. Danielsavis nazensis Houde et al., 2023, comparison of the vertebrae with those of other galloanserine birds. A, D. nazensis, cranialmost five cervical vertebrae (atlas: NMS.Z.2021.40.1; axis, third, and fourth vertebra: NMS.Z.2021.40.2; fifth vertebra: NMS.Z.2021.40.3). B‒D, cranialmost five cervical vertebrae of B, Chauna torquata (Anhimidae, Anseriformes; SMF 11885); C, Dendrocygna arborea (Anatidae, Anseriformes; SMF 6591); D, Alectura lathami (Megapodiidae, Galliformes; SMF 7243). E, D. nazensis, selected cervical and thoracic vertebrae of the holotype (NMS.Z.2021.40.1); the arrows denote enlarged details of the bones to show irregular lamellate projections. F‒I, axis in lateral view of F, D. nazensis (NMS.Z.2021.40.2); G, C. torquata (SMF 11885); H, D. arborea (SMF 6591); I, A. lathami (SMF 7243). J, D. nazensis, fourth cervical vertebra of the holotype (NMS.Z.2021.40.1) in dorsal and lateral view. K, D. nazensis, fourth cervical vertebra of the referred specimen NMS.Z.2021.40.2 in dorsal and lateral view. L, D. nazensis, thoracic vertebra in lateral view (NMS.Z.2021.40.3). Abbreviations: dns, dens; for, foramen; ftv, foramen transversarium; ntc, notch; ote, ossified tendons; pno, pneumatic opening; ptr, processus transversus; pvt, processus ventralis; zcd, zygapophysis caudalis; zcr, zygapophysis cranialis. The scale bars equal 5 mm.