News of the WeekPaleontology

Dinosaur Embryos Hint at Evolution of Giants

Science  29 Jul 2005:
Vol. 309, Issue 5735, pp. 679
DOI: 10.1126/science.309.5735.679

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Summary

An analysis of the oldest fossilized dinosaur embryos so far discovered, described on page 761 of this issue of Science, suggests that rather than dropping down on all fours only as their bodies grew too large to be carried on two feet, sauropods were already quadrupedal even as smaller creatures.