Even though many bird characteristics are shared with non-avian reptiles, most skeletal adaptations that permit flight are found only in the theropod lineage. Which of the following statements reflect skeletal features unique to the theropod/avian lineage? Check all that apply. - highly elongate S-shaped neck - pneumatized bones lighten the skeleton - diapsid skulls with a lower jaw comprised of five or six bones - vertebral column with fusion of most vertebrae into a synsacrum and pygostyle - clavicles fused into a furcula - alula formed from the second digit of manus
Added by Ruben L.
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Highly elongate S-shaped neck: This feature is unique to the theropod/avian lineage, as it allows for better balance and maneuverability during flight. Show more…
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