Biogenic origin of secondary eggshell units in dinosaur eggshells elucidates lost biomineralization process in maniraptoran dinosaurs

doi:10.1126/sciadv.adt1879

IVPP-IR

	Biogenic origin of secondary eggshell units in dinosaur eggshells elucidates lost biomineralization process in maniraptoran dinosaurs
	Zhang, Shukang 1,2; Choi, Seung 1,2,8; Kim, Noe-Heon 3,9; Xie, Junfang 4; Park, Yong 5; Plumper, Oliver 6; Selles, Albert G.7
	2025-05-30
发表期刊	SCIENCE ADVANCES
卷号	11 期号:22 页码:14
通讯作者	Zhang, Shukang(zhangshukang@ivpp.ac.cn)
摘要	Secondary eggshell units, though rarely observed in modern avian eggshells, are marked structures in non-avian dinosaur eggshells that offer valuable paleobiological insights. Despite their significance, the origins of secondary eggshell units remain understudied, leading to debates in paleontology, including the hypothesis of an abiogenic origin for these structures. Here, we demonstrate that secondary eggshell units in non-avian dinosaur eggshells are biogenic in nature, based on analyses using advanced microscopic techniques. The structural characteristics of these units suggest a formation mechanism similar to that of turtle and crocodile eggshells, with matrix fibers likely initiating their development. Furthermore, a diminishing presence of secondary eggshell units in non-avian maniraptoran dinosaurs points to the evolution of a more refined physiological process for eggshell formation in this lineage. These findings shed light on the evolutionary trajectory of eggshell biomineralization in dinosaurs and their close relatives.
DOI	10.1126/sciadv.adt1879
关键词[WOS]	PROVINCE ; CALCITE ; MINERALIZATION ; CARBONATE ; HOMOLOGY ; REVISION ; TUATARA ; EMBRYOS ; SHELL ; MG
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC) - Ministry of Science and Technology (NSFC)[42272020] ; European Union[101005611] ; National Research Foundation of Korea (NRF) - Ministry of Science and ICT (NRF)[2020R1A3B2079815] ; National Research Foundation of Korea (NRF) - Ministry of Science and ICT (NRF)[RS-2024-00341420]
项目资助者	National Natural Science Foundation of China (NSFC) - Ministry of Science and Technology (NSFC) ; European Union ; National Research Foundation of Korea (NRF) - Ministry of Science and ICT (NRF)
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001499501100007
出版者	AMER ASSOC ADVANCEMENT SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/24552
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zhang, Shukang
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 08826, South Korea 4.Zhejiang Museum Nat Hist, Hangzhou 310012, Zhejiang, Peoples R China 5.Seoul Natl Univ, Res Inst Basic Sci, Seoul 08826, South Korea 6.Univ Utrecht, Dept Earth Sci, NL-3584 CB Utrecht, Netherlands 7.Univ Autonoma Barcelona, Inst Catala Paleontol Miguel Crusafont, Cerdanyola De Valles 08193, Spain 8.Seoul Natl Univ, Res Inst Basic Sci, Seoul 08826, South Korea 9.Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA
推荐引用方式 GB/T 7714	Zhang, Shukang,Choi, Seung,Kim, Noe-Heon,et al. Biogenic origin of secondary eggshell units in dinosaur eggshells elucidates lost biomineralization process in maniraptoran dinosaurs[J]. SCIENCE ADVANCES,2025,11(22):14.
APA	Zhang, Shukang.,Choi, Seung.,Kim, Noe-Heon.,Xie, Junfang.,Park, Yong.,...&Selles, Albert G..(2025).Biogenic origin of secondary eggshell units in dinosaur eggshells elucidates lost biomineralization process in maniraptoran dinosaurs.SCIENCE ADVANCES,11(22),14.
MLA	Zhang, Shukang,et al."Biogenic origin of secondary eggshell units in dinosaur eggshells elucidates lost biomineralization process in maniraptoran dinosaurs".SCIENCE ADVANCES 11.22(2025):14.