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Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg 5nvklj





Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg 9tpt39

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    Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg

    Dragon
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    • Post n°1

    Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg Empty Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg

    Post by Dragon Thu Dec 30, 2021 2:16 am

    The fossilized dinosaur egg from the Hekou Formation, Ganzhou, Jiangxi province, southern China, is elongate ovoid in shape with dimensions of 16.7 cm long by 7.6 cm wide, and has characteristics typical of the egg family

    Elongatoolithidae. Dubbed ‘Baby Yingliang,’ the embryo belongs to an oviraptorosaur, a toothless theropod dinosaur closely related to birds.

    Among the most complete dinosaur embryos ever found, the fossil suggests that oviraptorosaurs took on a distinctive tucking posture before they hatched, a behavior that had been considered unique to birds.

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    Dragon
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    Post by Dragon Thu Dec 30, 2021 2:18 am

    Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg Image_10391_1-Baby-Yingliang
    Image credit: Julius Csotonyi.

    An artist’s reconstruction of the oviraptorosaur egg and embryo from the Hekou Formation, Ganzhou, Jiangxi province, southern China.

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    Dragon
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    • Post n°3

    Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg Empty Re: Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg

    Post by Dragon Thu Dec 30, 2021 2:19 am

    Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg Image_10391_2-Baby-Yingliang
    Image credit: Xing et al., doi: 10.1016/j.isci.2021.103516.

    Xing et al. found an exceptionally preserved, articulated oviraptorid embryo inside an elongatoolithid egg, from the Late Cretaceous Hekou Formation of southern China.

    The oviraptorid skeleton is 23.5 cm in total length, measured from the anterior tip of the skull to the last preserved caudal vertebra, and occupies nearly the entire width of the egg and most of the length, with the exception of a∼1.9 cm space between the dorsal vertebrae and the blunt pole of the egg.

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