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Brocklehurst_Figure_03

Figure 3 — Top, the anatomy of the diaphragmaticus (dm), liver (l), lungs (lu) and pubic bone (p) in living crocodilians. Bottom, fossil dinosaurs purported to show remains of the liver (marked with arrows), soft tissues (pc, posterior colon, c, colon) and other adaptations to a crocodilian ‘hepatic piston’ ventilation mechanism (single asterisk marks “diaphragmatic muscles”) in Scipionyx (left) and Sinosauropteryx (right). From Ruben et al., (1997, 1999).

Figure 3 — Top, the anatomy of the diaphragmaticus (dm), liver (l), lungs (lu) and pubic bone (p) in living crocodilians. Bottom, fossil dinosaurs purported to show remains of the liver (marked with arrows), soft tissues (pc, posterior colon, c, colon) and other adaptations to a crocodilian ‘hepatic piston’ ventilation mechanism (single asterisk marks “diaphragmatic muscles”) in Scipionyx (left) and Sinosauropteryx (right). From Ruben et al., (1997, 1999).