◆Shanxi Provincial Institute of Archeology recently released new archaeological discoveries，9 tombs bet365 joining bonus code Spring and Autumn Period to the Qing Dynasty were discovered in Hongdong County, Shanxi Province。Based on analysis of unearthed artifacts，The owner of one of the Spring and Autumn Period tombs may have been a senior official at that time。

The Nanqin ruins are located on a platform bet365 joining bonus code 200 meters southwest of Nanqin Village, Guangshengsi Town, Hongdong County, Linfen City, Shanxi Province。There is a Wage Line railway crossing the cemetery from east to west in the north，bet365 joining bonus code 5 kilometers southwest from the county seat of Hongdong County，bet365 joining bonus code 1 km north from the Yongningbao ruins，bet365 joining bonus code 2 miles to the northeast from the Fangdui site.5 kilometers，More than ten kilometers south are the ruins of the ancient city of Hongdong in the Eastern Zhou Dynasty。

More than 150 sets of various artifacts were unearthed from this late Spring and Autumn Period tomb，With copper、Tao、Stone、Gold、Bone、Lacquerware, etc.。In particular, the discovery of two sets of 9-piece bronze tripods and a complete set of chimes and chimes，Let the identity bet365 joining bonus code tomb owner be determined。

According to the archaeological excavation team leader Yang Jiyun，Musical instruments bet365 joining bonus code Sanjin area during the Eastern Zhou Dynasty were all found in tombs with more than five tripods，Comprehensive judgment，The level of tomb owners reflected in the Nanqin cemeteries is also the aristocratic class，Should be able to reach the level of Doctor Qing。

Yang Jiyun said，Nan Qin Cemetery is a place that lasted for a long time、Rich connotations、A relatively well-preserved large cemetery，Study on the burial system of different periods in southern Shanxi、Population ethnicity、bet365 joining bonus code life, etc. provide new information，In particular, it provides valuable physical reference materials for the research on the history of Jin during the two-week period。

◆A hadrosaur with a flat bill like a duck，What are its developmental characteristics？Scientists disclosed in a recently published paper two complete hadrosaur embryo fossils dating from bet365 joining bonus code 72 million to 66 million years ago，And concluded: small eggs and late-emerging hatchlings are primitive traits of hadrosaurs，This type of embryo hatches for a long period of time，The limb bones are fully grown。

Recently，Fujian Yingliang Stone Natural History Museum、China University of Geosciences (Beijing)、Scholars bet365 joining bonus code Taiwan Museum of Natural Science and the Canadian Museum of Nature，Jointly published a related paper in the international academic journal "BMC Ecology and Evolution"。

Research team introduction，This is not the first time that hadrosaur embryos have been discovered globally，But these two new hadrosaur embryo fossils are the best preserved of their kind to date。The egg in which the embryo is located is an ellipsoid with a length and diameter of bet365 joining bonus code 9 cm，Volume bet365 joining bonus code 660 ml，The embryo accounts for bet365 joining bonus code 40% of the entire egg，The embryonic egg has bet365 joining bonus code 0.4mm thick eggshell，The microstructure shows that it belongs to the family Ovidae。

The fossil specimen is now in the Fujian Yingliang Stone Natural History Museum，The museum nicknamed this group of specimens "Yingbeibei"。They were found in Ganzhou, Jiangxi，bet365 joining bonus code 72 million to 66 million years ago。Based on embryonic skull、The unique shape of the spine and limb bones，Scientists infer that the fossilized embryo contained in the egg belongs to a hadrosaur。This is a type of large herbivorous dinosaur that lived at the end of the dinosaur age。

Not only that，Hungry dinosaurs bet365 joining bonus code hadrosaurine family are thought to be less developed than those bet365 joining bonus code resaurine family，Especially in the formation of limb bones。In other words，The hatchlings bet365 joining bonus code hadrosaurine subfamily are late-blooming，After they hatch，Experiencing a longer period of time，The limb bones are fully grown。In comparison，The larger hatchlings of Laishosaurinae are formed early，Can adapt to the environment quickly after birth。

After comparison，Research team reaches conclusion，In the "Yingbeibei" embryonic egg discovered this time，Eggs and embryos are very small，Similar to hadrosaurine subfamily，This indicates that small eggs and late hatchlings are primitive traits of hadrosaurs，The larger eggs of Laishosaurinae are derived bet365 joining bonus code precocious hatchlings。

　　（Huiwen）