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New dinosaur eggs were found in the Samjon-ri 3㎞ south from the dinosaur eggsite at Gojeong-ri, Songsan-myeon, Hwaseong City, Gyeonggi Province (Natural Heritage 414) in 2006. A total of 15 dinosaur eggs were discovered at the site including one complete egg. They were found in three different locat...

New dinosaur eggs were found in the Samjon-ri 3㎞ south from the dinosaur eggsite at Gojeong-ri, Songsan-myeon, Hwaseong City, Gyeonggi Province (Natural Heritage 414) in 2006. A total of 15 dinosaur eggs were discovered at the site including one complete egg. They were found in three different locations but in the same horizon of the Shiwha Formation within the Namyang Basin. All dinosaur eggs are belonging to the dinosau-roid-spherulitic basic type, but have unique structural morphotype and pore system. The Samjon-ri dinosaur eggs are the same as type 2 dinosaur eggs at the Gojeong-ri, but had undergone stronger recrystallization than the latter. The dinosaur egg bearing horizon at the Samjon-ri consists of the reddish mudstone like at the Gojeong-ri which indicates the floodplain environment. The Samjon-ri dinosaur eggsite is located at least 1 ㎞ below the lowest horizon of the Gojeong-ri dinosaur eggsite, suggesting multiple egg laying events.

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