Figure 4. Changes in morphology of the anterior-to-middle cervical vertebrae throughout Sauropodomorpha.
(A) Massospondylus (BP/1/5241); (B) Aardonyx (BP/1/6662); (C) Pulanesaura, (BP/1/6199); (D) Patagosaurus (from29). Scale bars equal 5cm.
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