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. 2009 May 1;5(4):557–560. doi: 10.1098/rsbl.2009.0139

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Figure 1. — Evidence for postcranial skeletal pneumaticity in early pterosaurs. Raeticodactylus filisurensis, BNM 14524: (a) mid-cervical vertebra, ventral; (b,c) anterior dorsal rib, posterior; (d) third preserved dorsal vertebra, right lateral. Eudimorphodon cf. ranzii, BSP 1994 I 51: (e) mid-cervical vertebra, ventral. Dimorphodon macronyx, NHM R1034: (f) cervical vertebra, ventral. Dimorphodon macronyx, GSM 1546: (g) dorsal vertebrae 5–6, right lateral; (h) dorsal vertebrae 5–12, right lateral. cap, capitulum; con, condyle; cot, cotyle; nsp, neural spine; pnf, pneumatic foramen; poz, postzygapophysis; prz, prezygapophysis; tp, transverse process; tub, tuberculum. Scale bar, 5 mm.