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Journal articles on the topic 'Dinosaur eggshells'

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1

Yang, Tzu-Ruei, Ying-Hsuan Chen, Jasmina Wiemann, Beate Spiering, and P. Martin Sander. "Fossil eggshell cuticle elucidates dinosaur nesting ecology." PeerJ 6 (July 6, 2018): e5144. http://dx.doi.org/10.7717/peerj.5144.

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The cuticle layer consisting mainly of lipids and hydroxyapatite (HAp) atop the mineralized avian eggshell is a protective structure that prevents the egg from dehydration and microbial invasions. Previous ornithological studies have revealed that the cuticle layer is also involved in modulating the reflectance of eggshells in addition to pigments (protoporphyrin and biliverdin). Thus, the cuticle layer represents a crucial trait that delivers ecological signals. While present in most modern birds, direct evidence for cuticle preservation in stem birds and non-avian dinosaurs is yet missing. H
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2

Zelenitsky, Darla K., François Therrien, Kohei Tanaka, Philip J. Currie, and Christopher L. DeBuhr. "Latest Cretaceous eggshell assemblage from the Willow Creek Formation (upper Maastrichtian – lower Paleocene) of Alberta, Canada, reveals higher dinosaur diversity than represented by skeletal remains." Canadian Journal of Earth Sciences 54, no. 2 (2017): 134–40. http://dx.doi.org/10.1139/cjes-2016-0080.

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The Willow Creek Formation (upper Maastrichtian – lower Paleocene) of southwestern Alberta is a poorly fossiliferous formation that preserves a low end-Cretaceous dinosaur diversity compared with most correlative terrestrial deposits in the North American Western Interior. Although only three dinosaur taxa are known from skeletal remains (Tyrannosaurus rex, Hadrosauridae indet., and Leptoceratopsidae indet.), study of hundreds of dinosaur eggshells recovered from several sites in the formation reveals the presence of a more diverse dinosaur assemblage. Morphological and histological analyses o
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3

Amiot, Romain, Lina B. Golovneva, Pascal Godefroit, et al. "High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia." Diversity 15, no. 4 (2023): 565. http://dx.doi.org/10.3390/d15040565.

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Dinosaur eggshell fragments attributed to the oofamilies Spheroolithidae and Prismatoolithidae and recovered from the latest Cretaceous Kakanaut Formation of North-eastern Russia (Chukotka) constitute one of the northernmost records of dinosaur reproductive behaviors. The high palaeolatitude of the locality (~75° N), as well as the cool near-polar climate, where summer temperatures only averaged 20 °C during the warmest month, dark near-freezing winters and egg incubation that could have lasted several months, raise questions about dinosaur reproductive strategies, particularly in terms of the
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4

Wiemann, Jasmina, Tzu-Ruei Yang, Philipp N. Sander, et al. "Dinosaur origin of egg color: oviraptors laid blue-green eggs." PeerJ 5 (August 29, 2017): e3706. http://dx.doi.org/10.7717/peerj.3706.

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Protoporphyrin (PP) and biliverdin (BV) give rise to the enormous diversity in avian egg coloration. Egg color serves several ecological purposes, including post-mating signaling and camouflage. Egg camouflage represents a major character of open-nesting birds which accomplish protection of their unhatched offspring against visually oriented predators by cryptic egg coloration. Cryptic coloration evolved to match the predominant shades of color found in the nesting environment. Such a selection pressure for the evolution of colored or cryptic eggs should be present in all open nesting birds an
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5

Voris, Jared T., Darla K. Zelenitsky, François Therrien, and Kohei Tanaka. "Dinosaur eggshells from the lower Maastrichtian St. Mary River Formation of southern Alberta, Canada." Canadian Journal of Earth Sciences 55, no. 3 (2018): 272–82. http://dx.doi.org/10.1139/cjes-2017-0195.

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North America is known for its rich uppermost Cretaceous record of dinosaur egg remains, although a notable fossil gap exists during the lower Maastrichtian. Here we describe a diverse dinosaur eggshell assemblage from the St. Mary River Formation of southern Alberta that, in conjunction with recently described eggs from the same formation in Montana, helps fill this gap and sheds light on the dinosaur diversity in this poorly fossiliferous formation. Three theropod eggshell types (Continuoolithus cf. C. canadensis, Montanoolithus cf. M. strongorum, and Prismatoolithus cf. P. levis) and one or
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6

Hechenleitner, E. Martín, Gerald Grellet-Tinner, Matthew Foley, Lucas E. Fiorelli, and Michael B. Thompson. "Micro-CT scan reveals an unexpected high-volume and interconnected pore network in a Cretaceous Sanagasta dinosaur eggshell." Journal of The Royal Society Interface 13, no. 116 (2016): 20160008. http://dx.doi.org/10.1098/rsif.2016.0008.

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The Cretaceous Sanagasta neosauropod nesting site (La Rioja, Argentina) was the first confirmed instance of extinct dinosaurs using geothermal-generated heat to incubate their eggs. The nesting strategy and hydrothermal activities at this site led to the conclusion that the surprisingly 7 mm thick-shelled eggs were adapted to harsh hydrothermal microenvironments. We used micro-CT scans in this study to obtain the first three-dimensional microcharacterization of these eggshells. Micro-CT-based analyses provide a robust assessment of gas conductance in fossil dinosaur eggshells with complex pore
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7

Hansen, Robin, and Paul Barrett. "Hiding in plain sight: the unexpected discovery of a historically interesting dinosaur egg in a mineralogy collection." Geological Curator 11, no. 8 (2023): 535–49. http://dx.doi.org/10.55468/gc1469.

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In 1883, an agate from central India, donated by Chas. Fraser Esq., was registered in the Mineral Collection of the Natural History Museum (NHM), London, as BM.58644. More recently, it was removed from storage to be exhibited publicly in the NHM’s Membership Rooms, due to its high aesthetic value. However, a serendipitous observation made during an international mineralogy fair led to the discovery that the spherical structure in which the agate had formed was, in fact, a dinosaur egg. The size, shape and other features of the egg suggest that it was laid by a titanosaurid sauropod and was par
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8

Dong, Zhi-Ming, and Philip J. Currie. "Protoceratopsian embryos from Inner Mongolia, People's Republic of China." Canadian Journal of Earth Sciences 30, no. 10 (1993): 2248–54. http://dx.doi.org/10.1139/e93-195.

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New protoceratopsid fossils from Bayan Mandahu include the smallest specimens of Protoceratops and Bagaceratops recovered to date. None of these specimens were found associated with dinosaur eggshells, but all are small enough to fit within any of the eggs that have been attributed to protoceratopsians. It is concluded that they represent embryonic dinosaurs. No specimens are complete, but together they allow a better understanding of the cranial anatomy of the embryos.The absence of embryos in the thousands of eggs collected from Cretaceous sediments of China and Mongolia may represent a taph
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9

Sarkar, A., S. K. Bhattacharya, and D. M. Mohabey. "Stable-isotope analyses of dinosaur eggshells: Paleoenvironmental implications." Geology 19, no. 11 (1991): 1068. http://dx.doi.org/10.1130/0091-7613(1991)019<1068:siaode>2.3.co;2.

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10

Schweitzer, M. H., L. Chiappe, A. C. Garrido, J. M. Lowenstein, and S. H. Pincus. "Molecular preservation in Late Cretaceous sauropod dinosaur eggshells." Proceedings of the Royal Society B: Biological Sciences 272, no. 1565 (2005): 775–84. http://dx.doi.org/10.1098/rspb.2004.2876.

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11

Klzosla, Ashu, and Ashok Sahni. "Parataxonomic classification of Late Cretaceous Dinosaur eggshells from India." Journal of the Palaeontological Society of India 40, no. 1 (1995): 87–98. http://dx.doi.org/10.1177/0971102319950109.

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12

Mohabey, D. M. "Systematics of Indian Upper Cretaceous dinosaur and chelonian eggshells." Journal of Vertebrate Paleontology 18, no. 2 (1998): 348–62. http://dx.doi.org/10.1080/02724634.1998.10011063.

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13

Ovhal, Digambar A., Bandana Samant, N. S. Dhoble, D. M. Mohabey, and S. J. Dhoble. "Thermoluminescence study in fossils of dinosaur bones and eggshells." Luminescence 35, no. 8 (2020): 1304–18. http://dx.doi.org/10.1002/bio.3892.

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14

Vianey-Liaud, Monique, and Nieves Lopez-Martinez. "Late Cretaceous dinosaur eggshells from the Tremp Basin, southern Pyrenees, Lleida, Spain." Journal of Paleontology 71, no. 6 (1997): 1157–71. http://dx.doi.org/10.1017/s002233600003609x.

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Late Cretaceous dinosaur eggshell assemblages from six localities of the Tremp basin (Southern Pyrenees, Lleida, Spain) are studied and compared with those of Southern France, to correlate their temporal succession. Fontllonga 6 reveals the most diverse eggshell assemblage known so far, with seven oospecies, among which one new structural type (Pseudogeckoolithus nodosus new genus and species), a new Ratite-type eggshell (Ageroolithus fontllongensis new genus and species) and a new Prismatoolithidae are described; four other taxa are shared with Southern France. The correlation of both Spanish
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15

Garcia, Géraldine, and Monique Vianey-Liaud. "Dinosaur eggshells as biochronological markers in Upper Cretaceous continental deposits." Palaeogeography, Palaeoclimatology, Palaeoecology 169, no. 1-2 (2001): 153–64. http://dx.doi.org/10.1016/s0031-0182(01)00215-2.

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16

Bravo, Ana María, and Jesús Marugán-Lobón. "Morphometric analysis of dinosaur eggshells: constraints of size on shape." Historical Biology 25, no. 5-6 (2013): 697–704. http://dx.doi.org/10.1080/08912963.2012.744989.

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17

Trimby, P., and G. Grellet-Tinner. "Using Electron Backscatter Diffraction to Aid Identification of Fossilized Dinosaur Eggshells." Microscopy and Microanalysis 17, S2 (2011): 574–75. http://dx.doi.org/10.1017/s1431927611003746.

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18

Moreno-Azanza, Miguel, Elisabetta Mariani, Blanca Bauluz, and José I. Canudo. "Growth mechanisms in dinosaur eggshells: an insight from electron backscatter diffraction." Journal of Vertebrate Paleontology 33, no. 1 (2013): 121–30. http://dx.doi.org/10.1080/02724634.2012.710284.

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19

Zelenitsky, Darla K., François Therrien, Kohei Tanaka, Yoshitsugu Kobayashi, and Christopher L. DeBuhr. "Dinosaur eggshells from the Santonian Milk River Formation of Alberta, Canada." Cretaceous Research 74 (June 2017): 181–87. http://dx.doi.org/10.1016/j.cretres.2017.02.016.

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20

Vinther, Jakob. "Reconstructing Vertebrate Paleocolor." Annual Review of Earth and Planetary Sciences 48, no. 1 (2020): 345–75. http://dx.doi.org/10.1146/annurev-earth-073019-045641.

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Melanin and other pigments are now well known to be important in exceptional preservation of soft tissues in vertebrates and other animals. Because pigments confer coloration and even structural colors, they have opened a new field of paleocolor reconstruction. Since its inception about a decade ago, reconstruction of color patterns has been performed on several vertebrates, including feathered and scale-clad dinosaurs. Iridescence and other types of structural color can also be identified through melanosome shape and arrangement. How pigments and melanosomes fossilize and are altered has beco
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21

Khosla, Ashu, and Sunil Bajpai. "Dinosaur fossil records from India and their palaeobiogeographic implications: an overview." Journal of Palaeosciences 70, no. (1-2) (2021): 193–212. http://dx.doi.org/10.54991/jop.2021.15.

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The complex palaeogeographic history of India involving a gradual transition from Gondwana to Laurasia with an intervening phase of prolonged physical isolation, and the biotic signatures of this complex history as preserved in India’s Mesozoic fossil record are of much current interest and continue to be debated. Seen in this context, the fossil record of dinosaurs from India provides a unique opportunity to study their diversity and palaeobiogeographic distribution in time and space. The Indian fossil record, as currently documented, is patchy and restricted mainly to three intervals of the
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22

Zhao, Zikui, and Zheng Yan. "Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China." Science in China Series D: Earth Sciences 43, no. 1 (2000): 84–92. http://dx.doi.org/10.1007/bf02877833.

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23

Srivastava, Rahul, Ashok Sahni, Syed A. Jafar, and Sanjay Mishra. "Microstructure-dictated resistance properties of some Indian dinosaur eggshells: finite element modeling." Paleobiology 31, no. 2 (2005): 315–23. http://dx.doi.org/10.1666/0094-8373(2005)031[0315:mrposi]2.0.co;2.

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24

Vianey-Liaud, Monique, Ashu Khosla, and Geraldine Garcia. "Relationships between European and Indian dinosaur eggs and eggshells of the oofamily Megaloolithidae." Journal of Vertebrate Paleontology 23, no. 3 (2003): 575–85. http://dx.doi.org/10.1671/0272-4634(2003)023[0575:rbeaid]2.0.co;2.

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25

Vianey-Liaud, Monique, Sohan L. Jain, and Ashok Sahni. "Dinosaur eggshells (Saurischia) from the Late Cretaceous Intertrappean and Lameta formations (Deccan, India)." Journal of Vertebrate Paleontology 7, no. 4 (1988): 408–24. http://dx.doi.org/10.1080/02724634.1988.10011673.

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26

Tarantino, Serena Chiara, M. Zema, D. Siliqi, et al. "A crystallographic approach to the study of dinosaur eggshells of 70 Mya from Mexico." Acta Crystallographica Section A Foundations and Advances 80, a1 (2024): e611-e611. https://doi.org/10.1107/s2053273324093884.

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27

Pérez-Pueyo, Manuel, Penélope Cruzado-Caballero, Miguel Moreno-Azanza, et al. "The Tetrapod Fossil Record from the Uppermost Maastrichtian of the Ibero-Armorican Island: An Integrative Review Based on the Outcrops of the Western Tremp Syncline (Aragón, Huesca Province, NE Spain)." Geosciences 11, no. 4 (2021): 162. http://dx.doi.org/10.3390/geosciences11040162.

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The South-Pyrenean Basin (northeastern Spain) has yielded a rich and diverse record of Upper Cretaceous (uppermost Campanian−uppermost Maastrichtian) vertebrate fossils, including the remains of some of the last European dinosaurs prior to the Cretaceous-Paleogene (K-Pg) extinction event. In this work, we update and characterize the vertebrate fossil record of the Arén Sandstone and Tremp formations in the Western Tremp Syncline, which is located in the Aragonese area of the Southern Pyrenees. The transitional and continental successions of these sedimentary units are dated to the late Maastri
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28

Penner, Morris Michael. "The problem of Dinosaur extinction.Contribution of the study of terminal Cretaceous eggshells from Southeast France." Geobios 18, no. 5 (1985): 665–69. http://dx.doi.org/10.1016/s0016-6995(85)80064-4.

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29

Zhao, ZiKui, XueYing Mao, ZhiFang Chai, GaoChuang Yang, FuCheng Zhang, and Zheng Yan. "Geochemical environmental changes and dinosaur extinction during the Cretaceous-Paleogene (K/T) transition in the Nanxiong Basin, South China: Evidence from dinosaur eggshells." Science Bulletin 54, no. 5 (2008): 806–15. http://dx.doi.org/10.1007/s11434-008-0565-1.

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30

Zhao, ZiKui, ShuKang Zhang, Qiang Wang, and XiaoLin Wang. "Dinosaur diversity during the transition between the middle and late parts of the Late Cretaceous in eastern Shandong Province, China: Evidence from dinosaur eggshells." Chinese Science Bulletin 58, no. 36 (2013): 4663–69. http://dx.doi.org/10.1007/s11434-013-6059-9.

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31

Zhao, Zi-kui, Xue-ying Mao, Zhi-fang Chai, et al. "A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells." Palaeogeography, Palaeoclimatology, Palaeoecology 178, no. 1-2 (2002): 1–17. http://dx.doi.org/10.1016/s0031-0182(01)00361-3.

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32

TANAKA, Kohei, LÜ Junchang, Yoshitsugu KOBAYASHI, et al. "Description and Phylogenetic Position of Dinosaur Eggshells from the Luanchuan Area of Western Henan Province, China." Acta Geologica Sinica - English Edition 85, no. 1 (2011): 66–74. http://dx.doi.org/10.1111/j.1755-6724.2011.00379.x.

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33

Dauphin, Yannicke, and Jean-Jacques Jaeger. "Geochemical composition of dinosaur eggshells from the Aix Basin (France; Cretaceous): Influence of the analytical method." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1990, no. 8 (1990): 479–92. http://dx.doi.org/10.1127/njgpm/1990/1990/479.

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34

Marin, Frédéric, and Yannicke Dauphin. "Composition of the soluble protein matrices of the Rognacian (Cretaceous) dinosaur eggshells of South East France." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1991, no. 4 (1991): 243–54. http://dx.doi.org/10.1127/njgpm/1991/1991/243.

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35

Dawson, Robin R., Daniel J. Field, Pincelli M. Hull, Darla K. Zelenitsky, François Therrien, and Hagit P. Affek. "Eggshell geochemistry reveals ancestral metabolic thermoregulation in Dinosauria." Science Advances 6, no. 7 (2020): eaax9361. http://dx.doi.org/10.1126/sciadv.aax9361.

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Studying the origin of avian thermoregulation is complicated by a lack of reliable methods for measuring body temperatures in extinct dinosaurs. Evidence from bone histology and stableisotopes often relies on uncertain assumptions about the relationship between growth rate and body temperature, or the isotopic composition (δ18O) of body water. Clumped isotope (Δ47) paleothermometry, based on binding of 13C to 18O, provides a more robust tool, but has yet to be applied across a broad phylogenetic range of dinosaurs while accounting for paleoenvironmental conditions. Applying this method to well
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36

Casal, Gabriel Andrés, Patricia Vallati, Lucio Manuel Ibiricu, et al. "Primer registro de estromatolitos en el Maastrichtiano tardío del Grupo Chubut, Cuenca del Golfo San Jorge, Patagonia central, Argentina." Andean Geology 47, no. 1 (2020): 162. http://dx.doi.org/10.5027/andgeov47n1-3177.

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The presence of stromatolites from Cretaceous outcrops at the headwaters of the río Chico locality in the Golfo San Jorge Basin is reported for the first time. They are present in the uppermost part of the Lago Colhué Huapi Formation (Coniacian-Maastrichtian) of the Chubut Group. The presence of, up to now, four structures interpreted as stromatolites in this locality are not only important because it is the first record in the basin, but because it contributes to the knowledge of these bioconstructions in continental environments. The stromatolite called E1, which is characterized and discuss
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37

Fernández, Mariela S., and Ashu Khosla. "Parataxonomic review of the Upper Cretaceous dinosaur eggshells belonging to the oofamily Megaloolithidae from India and Argentina." Historical Biology 27, no. 2 (2014): 158–80. http://dx.doi.org/10.1080/08912963.2013.871718.

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38

Zhao, Zi-kui, Jiang-ke Wang, Shui-xie Chen, and Yue-ming Zhong. "Amino acid composition of dinosaur eggshells nearby the K/T boundary in Nanxiong Basin, Guangdong Province, China." Palaeogeography, Palaeoclimatology, Palaeoecology 104, no. 1-4 (1993): 213–18. http://dx.doi.org/10.1016/0031-0182(93)90132-3.

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39

DEEMING, D. C. "ULTRASTRUCTURAL AND FUNCTIONAL MORPHOLOGY OF EGGSHELLS SUPPORTS THE IDEA THAT DINOSAUR EGGS WERE INCUBATED BURIED IN A SUBSTRATE." Palaeontology 49, no. 1 (2006): 171–85. http://dx.doi.org/10.1111/j.1475-4983.2005.00536.x.

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40

Bada, Jeffrey L., Xueyun S. Wang, and Healy Hamilton. "Preservation of key biomolecules in the fossil record: current knowledge and future challenges." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 354, no. 1379 (1999): 77–87. http://dx.doi.org/10.1098/rstb.1999.0361.

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We have developed a model based on the analyses of modern and Pleistocene eggshells and mammalian bones which can be used to understand the preservation of amino acids and other important biomolecules such as DNA in fossil specimens. The model is based on the following series of diagenetic reactions and processes involving amino acids: the hydrolysis of proteins and the subsequent loss of hydrolysis products from the fossil matrix with increasing geologic age; the racemization of amino acids which produces totally racemized amino acids in 10 5 –10 6 years in most environments on the Earth; the
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41

Chassagne-Manoukian, Maïlys, Hamid Haddoumi, Henri Cappetta, et al. "Dating the “red beds” of the Eastern Moroccan High Plateaus: Evidence from late Late Cretaceous charophytes and dinosaur eggshells." Geobios 46, no. 5 (2013): 371–79. http://dx.doi.org/10.1016/j.geobios.2013.06.001.

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42

Cojan, Isabelle, Maurice Renard, and Laurent Emmanuel. "Palaeoenvironmental reconstruction of dinosaur nesting sites based on a geochemical approach to eggshells and associated palaeosols (Maastrichtian, Provence Basin, France)." Palaeogeography, Palaeoclimatology, Palaeoecology 191, no. 2 (2003): 111–38. http://dx.doi.org/10.1016/s0031-0182(02)00655-7.

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43

Legorreta-Flores, Angélica, Alejandra Davila-Tejeda, Omar Velásquez-González, et al. "Calcium Carbonate Crystal Shapes Mediated by Intramineral Proteins from Eggshells of Ratite Birds and Crocodiles. Implications to the Eggshell’s Formation of a Dinosaur of 70 Million Years Old." Crystal Growth & Design 18, no. 9 (2018): 5663–73. http://dx.doi.org/10.1021/acs.cgd.8b01020.

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44

Kim, Cheong-Bin, Ihsan S. Al-Aasm, Fereydoun Ghazban, and Ho-Wan Chang. "Stable isotopic composition of dinosaur eggshells and pedogenic carbonates in the upper cretaceous seonso formation, South Korea: Paleoenvironmental and diagenetic implications." Cretaceous Research 30, no. 1 (2009): 93–99. http://dx.doi.org/10.1016/j.cretres.2008.05.003.

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45

Haddoumi, H., F. Mebrouk, B. Andreu, et al. "Nouvelles données sédimentologiques et paléontologiques (charophytes, ostracodes, coquilles d'oeuf de dinosaure) sur la Formation du Tigri (Sénonien des Hauts Plateaux méridionaux, Maroc oriental) ; paléoenvironnements et évolution paléogéographique." Revue de Paléobiologie 34, no. 1 (2015): 85–111. https://doi.org/10.5281/zenodo.18902.

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46

Elejalde-Cadena, Nerith Rocío, José Octavio Estevez, Vicente Torres-Costa, María Dolores Ynsa-Alcalá, Gastón García-López, and Abel Moreno. "Molecular Analysis of the Mineral Phase and Examination of Possible Intramineral Proteins of Dinosaur Eggshells Collected in El Rosario, Baja California, Mexico." ACS Earth and Space Chemistry 5, no. 6 (2021): 1552–63. http://dx.doi.org/10.1021/acsearthspacechem.1c00077.

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47

Elejalde-Cadena, Nerith R., and Abel Moreno. "Fractal Analysis of the Distribution and Morphology of Pores in Dinosaur Eggshells Collected in Mexico: Implications to Understand the Biomineralization of Calcium Carbonate." ACS Omega 6, no. 11 (2021): 7887–95. http://dx.doi.org/10.1021/acsomega.1c00478.

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48

Zelenitsky, Darla K., L. V. Hills, and Philip J. Currie. "Parataxonomic classification of ornithoid eggshell fragments from the Oldman Formation (Judith River Group; Upper Cretaceous), southern Alberta." Canadian Journal of Earth Sciences 33, no. 12 (1996): 1655–67. http://dx.doi.org/10.1139/e96-126.

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Examination of a large number of eggshell fragments collected from the Oldman Formation of southern Alberta reveals a greater ootaxonomic diversity than is known from complete eggs or clutches. Three new oogenera and oospecies of the ornithoid-ratite morphotype and one of the ornithoid-prismatic morphotype are established, based on the eggshell fragments. Porituberoolithus warnerensis oogen. et oosp. nov. and Continuoolithus canadensis oogen. et oosp. nov. have a microstructure similar to that of elongatoolithid eggs of theropod dinosaurs. Tristraguloolithus cracioides oogen. et oosp. nov. and
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Mankar, Rupesh S., and Ashok K. Srivastava. "REVISED PALEOGEOGRAPHY OF THE DINOSAUR BEARING MAASTRICHTIAN LAMETA FORMATION, CENTRAL AND WESTERN INDIA: IN THE PERSPECTIVE OF NEWLY IDENTIFIED SALBARDI-BELKHER INLAND BASIN." Journal of Sedimentary Environments 4, no. 1 (2019): 53–71. http://dx.doi.org/10.12957/jse.2019.39318.

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Abstract:
The Lameta sediments covering the geographical area of about 5,000 km2 in central and western India are well documented for their sedimentological and paleobiologic aspects in last four decades. Occurrences of dinosaurian remains including bones, coprolites, eggs, eggshells and nests in mainly arenaceous lithounits of the successions exposed at various localities have been widely used as a significant tool for precise reconstructions of paleogeographic and paleoenvironmental set-up during the Maastrichtian period. Based on sedimentological and paleobiologic aspects, earlier it was considered t
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50

Hedge, Joshua, Ryan T. Tucker, Peter J. Makovicky, and Lindsay E. Zanno. "Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah." PLOS ONE 20, no. 2 (2025): e0314689. https://doi.org/10.1371/journal.pone.0314689.

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Abstract:
The first fossil eggshell from the Cenomanian-age Mussentuchit Member of the Cedar Mountain Formation was described over fifty years ago. In the half-century since, oodiversity of this rock unit has been limited to a single, taxonomically unstable ootaxon, currently formulated as Macroelongatoolithus carlylei. Recently, there has been a renewed effort to recover and describe the macrofauna of the Mussentuchit; however, these advances are limited to the body fossil record. Here, we examine the range of eggshells present in the Mussentuchit Member and assess the preserved biodiversity they repre
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