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Science 28 September 2001:
Vol. 293. no. 5539, p. 2371
DOI: 10.1126/science.293.5539.2371a
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News of the Week

PALEONTOLOGY:
Unhatched Eggs Help Dinos Get a Head

Erik Stokstad

Paleontologists have identified embryonic remains of five kinds of dinosaurs, but intact embryos of the long-necked, lumbering sauropods remained unknown--until now. On page 2444, three paleontologists describe the first articulated skulls--not much bigger than a postage stamp--of titanosaurs, a group of sauropods known only from incomplete skeletons and very few skulls. The embryos may shed light on early sauropod evolution, about which relatively little is known.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)