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Fig. 3 | BMC Ecology and Evolution

Fig. 3

From: Heads or tails first? Evolution of fetal orientation in ichthyosaurs, with a scrutiny of the prevailing hypothesis

Fig. 3

Overview of the trunk of female Mixosaurus cornalianus PIMUZ T 1902 and in situ associated and articulated fetal material: A, complete overview of the specimen (An and Po denote maternal anterior and posterior); B, detail of the maternal trunk containing fetal cranial elements (An and Po denote fetal anterior and posterior); C, detail of the maternal trunk containing the articulated fetal vertebral column; D, fetal tibia; E; fetal fibula and astragalus. Interpretations denoted by an apostrophe after their respective letter. Abbreviations: ar, articular; cr, maternal cranium; de/su, dentary surangular; f, maternal left forelimb; gl, glenoid; lj, maternal lower jaw; mx, maxilla; pmx, premaxilla; qu, quadrate; rf, rib facet

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BMC Ecology and Evolution

ISSN: 2730-7182

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