SVP 2018: Study says: Hatchling Massospondylus a likely biped

Earlier we looked at a Massospondlylus embryo and a reconstruction that appeared to be quadrupedal based on various limb and torso proportions (Fig. 1).

FIgure 1. Massospondylus embryo in situ and reconstructed.

FIgure 1. Massospondylus carinatus embryo in situ and reconstructed.

Chapelle et al. ((3 co-authors) 2018 report,
“Our results clearly show that M. carinatus was a biped from hatching, and possessed bipedal skeletal proportions even in ovo.”

This is a judgement call. Up to you.

References
Chapelle KE, et al. 2018. Locomotory shfits in dinosaurs during ontogeny. SVP abstracts.

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