Last Updated
：2025/12/08
Morrison Formation
Proper noun
Japanese Meaning
（地質学）アメリカ西部に存在する上部ジュラ紀の堆積岩層で、北アメリカにおける恐竜化石の主要な埋蔵場所として知られる。
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(geology) A sequence of Upper Jurassic sedimentary rock in the western United States, noted as the most fertile source of dinosaur fossils in North America.
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Morrison Formation
Paleontologists excavated a new sauropod skeleton from the Morrison Formation during the summer dig.
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Paleontologists excavated a new sauropod skeleton from the Morrison Formation during the summer dig.
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