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Fossil eggs associated with a neoceratopsian (Mosaiceratops azumai) from the Upper Cretaceous Xiaguan Formation, Henan Province, China
Jackson, Frankie D.1; Zheng, Wenjie2,3,4,5,6; Imai, Takuya7,8,9; Jackson, Robert A.1; Jin, Xingsheng2
2018-11-01
Source PublicationCRETACEOUS RESEARCH
ISSN0195-6671
Volume91Pages:457-467
Abstract

The close association of osteological remains and fossil eggs sometimes leads to misinterpretations, particularly in the absence of adequate taphonomic data. A clutch of 15 fossil eggs from the Upper Cretaceous Xiaguan Formation, Henan Province, China occurs in close association to a partial skeleton of the neoceratopsian, Mosaiceratops azumai. Two centimeters of sediment separate several eggs on the edge of the clutch from the rostrum of the skull. However, preservation of aragonite crystals in the eggshell allows assignment of the eggs to a turtle. Physical characteristics of the bones and eggs suggest the specimen was prepared upside-down. We estimate an egg mass of 89.3 g and calculate water vapor conductance (GH2O) as 288 mg(H2O)day(-1) Torr(-1). Using a formula that correlates egg size (53 x 58 mm) and carapace length, we estimate the carapace of the turtle that produced the clutch as 1.5 m. This egg size exceeds that of all previously reported fossil turtle eggs. (C) 2018 Elsevier Ltd. All rights reserved.

KeywordTurtle Testudoolithidae Neoceratopsia Gas Conductance Taphonomy Fossil Eggs
DOI10.1016/j.cretres.2018.06.020
Language英语
WOS KeywordWater-vapor Conductance ; Dinosaur Troodon-formosus ; Reproductive Traits ; Clutch Size ; Turtle Eggs ; Eggshells ; Taphonomy ; Disarticulation ; Incubation ; Evolution
Funding ProjectChinese Natural Science Foundation[41602019] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Science)[163120]
WOS Research AreaGeology ; Paleontology
WOS SubjectGeology ; Paleontology
WOS IDWOS:000442976600035
Funding OrganizationChinese Natural Science Foundation ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Science)
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/17006
Collection中国科学院南京地质古生物研究所
Corresponding AuthorJackson, Frankie D.
Affiliation1.Montana State Univ, Dept Earth Sci, Bozeman, MT 59717 USA
2.Zhejiang Museum Nat Hist, Hangzhou 310014, Zhejiang, Peoples R China
3.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
7.Fukui Prefectural Dinosaur Museum, Fukui 9118601, Japan
8.Fukui Prefectural Univ, Inst Dinosaur Res, Fukui 9101195, Japan
9.Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan
Recommended Citation
GB/T 7714
Jackson, Frankie D.,Zheng, Wenjie,Imai, Takuya,et al. Fossil eggs associated with a neoceratopsian (Mosaiceratops azumai) from the Upper Cretaceous Xiaguan Formation, Henan Province, China[J]. CRETACEOUS RESEARCH,2018,91:457-467.
APA Jackson, Frankie D.,Zheng, Wenjie,Imai, Takuya,Jackson, Robert A.,&Jin, Xingsheng.(2018).Fossil eggs associated with a neoceratopsian (Mosaiceratops azumai) from the Upper Cretaceous Xiaguan Formation, Henan Province, China.CRETACEOUS RESEARCH,91,457-467.
MLA Jackson, Frankie D.,et al."Fossil eggs associated with a neoceratopsian (Mosaiceratops azumai) from the Upper Cretaceous Xiaguan Formation, Henan Province, China".CRETACEOUS RESEARCH 91(2018):457-467.
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