TY - JOUR AU - Cabrera-Hernandez, Jonathan Silvino AU - Montellano-Ballesteros, Marisol AU - Roy, Priyadarsi D. AU - Fastovsky, David E. TI - Eggshells assemblages and stable isotope composition in the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, Mexico: Paleoenvironmental inferences JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 138 PY - 2022 PG - 27 SN - 0195-6671 DO - 10.1016/j.cretres.2022.105265 UR - https://m2.mtmt.hu/api/publication/33450291 ID - 33450291 N1 - Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyoacán, Ciudad de México, CP 04510, Mexico Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyoacán, Ciudad de México, CP 04510, Mexico Department of Geosciences, University of Rhode Island, 9 East Alumni Avenue, Kingston, RI 02881, United States Export Date: 24 February 2023 Correspondence Address: Cabrera-Hernández, J.S.; Posgrado en Ciencias Biológicas, Alcaldía Coyoacán, Mexico; email: g.ijoe.tyranno@hotmail.com AB - Fossil eggshells were recovered from the El Gallo Formation, Baja California, northwest Mexico, is one of the few North American Campanian continental outcrops outside the Western Interior Basin. Based on microstructure, the eggshells are referred to ornithopod (ootaxon Spheroolithus), theropods (ootaxa Prismatoolithus, two Tubercuoolithidae eggshells, Continuoolithus, Tristraguloolithus, Disperituberoolithus, Pseudogeckoolithus, Laevisoolithidae? eggshells and Enantiornithine indet.), and one crocodylomorph (cf. Neokrokolithes). While some of these ootaxa were associated with the modest, but diverse osteological record preserved there; others reveal the presence of small theropods, including as the first evidence of enantiornithine birds in the formation. Because the stable isotopic compositions of the eggshells differ from those of pedogenic carbonate nodules, we infer minimal diagenetic influence. We thus propose that the C3 plants had delta C-13 compositions between -27 parts per thousand and -29 parts per thousand and that warm evaporative conditions led to enriched delta O-18 in ingested water compared to meteoric water at least during the short period of dinosaur eggshell formation. (C) 2022 Elsevier Ltd. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Li, Ying AU - Zhu, Xufeng AU - Wang, Qiang AU - Jiang, Shunxing AU - Yang, Yimin AU - Luo, Wugan AU - Wang, Xiaolin TI - Apatite in Hamipterus tianshanensis eggshell: advances in understanding the structure of pterosaur eggs by Raman spectroscopy JF - HERITAGE SCIENCE J2 - HERIT SCI VL - 10 PY - 2022 IS - 1 SN - 2050-7445 DO - 10.1186/s40494-022-00720-7 UR - https://m2.mtmt.hu/api/publication/32896409 ID - 32896409 N1 - Department of Archaeology and Anthropology, University of Chinese Academy of Sciences, Beijing, 100049, China Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China CAS Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China Cited By :1 Export Date: 24 February 2023 Correspondence Address: Luo, W.; Department of Archaeology and Anthropology, China; email: xiahua@ucas.ac.cn Correspondence Address: Wang, X.; Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, China; email: wangxiaolin@ivpp.ac.cn LA - English DB - MTMT ER - TY - JOUR AU - Choi, S AU - Park, Y AU - Kweon, JJ AU - Kim, S AU - Jung, H AU - Lee, SK AU - Lee, YN TI - Fossil eggshells of amniotes as a paleothermometry tool JF - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY J2 - PALAEOGEOGR PALAEOCL VL - 571 PY - 2021 SN - 0031-0182 DO - 10.1016/j.palaeo.2021.110376 UR - https://m2.mtmt.hu/api/publication/31992401 ID - 31992401 N1 - Cited By :4 Export Date: 16 September 2022 CODEN: PPPYA Correspondence Address: Choi, S.email: seung0521@snu.ac.kr LA - English DB - MTMT ER - TY - JOUR AU - Choi, S AU - Moreno‐Azanza, M AU - Csiki‐Sava, Z AU - Prondvai, Edina AU - Lee, YN TI - Comparative crystallography suggests maniraptoran theropod affinities for latest Cretaceous European ‘geckoid’ eggshell JF - PAPERS IN PALAEONTOLOGY J2 - PAP PALAEONTOL VL - 6 PY - 2020 IS - 2 SP - 265 EP - 292 PG - 28 SN - 2056-2799 DO - 10.1002/spp2.1294 UR - https://m2.mtmt.hu/api/publication/31137602 ID - 31137602 N1 - School of Earth & Environmental Sciences, Seoul National University, Seoul, 08826, South Korea Geobiotec, Departamento de Ciências da Terra, Universidade Nova de Lisboa, Caparica, 2829-526, Portugal Espaço Novapaleo & Geophysics, Museu de Lourinhã, Lourinhã, 2530-158, Portugal Faculty of Geology & Geophysics, University of Bucharest, Bucharest, 010041, Romania Department of Biology, Ghent University, Ghent, 9000, Belgium MTA-MTM-ELTE Research Group for Paleontology, Budapest, 1083, Hungary Cited By :12 Export Date: 16 September 2022 Correspondence Address: Choi, S.; School of Earth & Environmental Sciences, South Korea; email: seung0521@snu.ac.kr LA - English DB - MTMT ER - TY - CHAP AU - Khosla, A AU - Lucas, SG ED - Khosla, A ED - Lucas, SG TI - Indian Late Cretaceous Dinosaur Nesting Sites and Their Systematic Studies T2 - Late Cretaceous Dinosaur Eggs and Eggshells of Peninsular India PB - Springer Netherlands CY - Cham SN - 9783030564544 PY - 2020 SP - 117 EP - 205 PG - 89 DO - 10.1007/978-3-030-56454-4_4 UR - https://m2.mtmt.hu/api/publication/31657193 ID - 31657193 LA - English DB - MTMT ER - TY - CHAP AU - Khosla, A AU - Lucas, SG ED - Khosla, A ED - Lucas, SG TI - Introduction of Indian Late Cretaceous Dinosaur Eggs and Eggshells of Peninsular India T2 - Late Cretaceous Dinosaur Eggs and Eggshells of Peninsular India PB - Springer Netherlands CY - Cham SN - 9783030564544 PY - 2020 SP - 1 EP - 30 PG - 30 DO - 10.1007/978-3-030-56454-4_1 UR - https://m2.mtmt.hu/api/publication/31657138 ID - 31657138 LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Mészáros, Lukács TI - Gerinces fosszíliák és kutatásuk a Kárpát-medencében JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 150 PY - 2020 IS - 3 SP - 375 EP - 396 PG - 22 SN - 0015-542X DO - 10.23928/foldt.kozl.2020.150.3.375 UR - https://m2.mtmt.hu/api/publication/31618154 ID - 31618154 N1 - Export Date: 16 September 2022 Correspondence Address: Ősi, A.; Eötvös Loránd Tudományegyetem, Pázmány Péter sétány 1/C, Hungary; email: hungaros@gmail.com LA - Hungarian DB - MTMT ER - TY - THES AU - Seung, Choi TI - Paleontological, neontological, and taphonomic studies for amniote eggshells with analytical approaches PB - Chinese Academy of Sciences PY - 2020 DO - 10.13140/RG.2.2.36595.55846 UR - https://m2.mtmt.hu/api/publication/32234896 ID - 32234896 LA - Korean DB - MTMT ER - TY - JOUR AU - Choi, S AU - Lee, YN TI - Possible Late Cretaceous dromaeosaurid eggshells from South Korea: a new insight into dromaeosaurid oology JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 103 PY - 2019 SN - 0195-6671 DO - 10.1016/j.cretres.2019.06.013 UR - https://m2.mtmt.hu/api/publication/30777858 ID - 30777858 N1 - Cited By :9 Export Date: 16 September 2022 Correspondence Address: Lee, Y.-N.; School of Earth and Environmental of Sciences, South Korea; email: ynlee@snu.ac.kr LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Botfalvai, Gábor AU - Albert, Gáspár AU - Hajdu, Zs TI - The dirty dozen: taxonomical and taphonomical overview of a unique ankylosaurian (Dinosauria: Ornithischia) assemblage from the Santonian Iharkút locality, Hungary JF - PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS J2 - PALAEOBIODIV PALAEOENV VL - 99 PY - 2019 IS - 2 SP - 195 EP - 240 PG - 46 SN - 1867-1594 DO - 10.1007/s12549-018-0362-z UR - https://m2.mtmt.hu/api/publication/30422066 ID - 30422066 N1 - Department of Paleontology, Eötvös University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Hungarian Natural History Museum, Ludovika tér 2, Budapest, 1083, Hungary Department of Physical and Applied Geology, Eötvös University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Department of Cartography and Geoinformatics, Eötvös University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary MTA–ELTE Lendület Dinosaur Research Group, Budapest, Hungary Cited By :7 Export Date: 16 September 2022 Correspondence Address: Ősi, A.; Department of Paleontology, Pázmány Péter sétány 1/C, Hungary; email: hungaros@gmail.com LA - English DB - MTMT ER - TY - THES AU - Botfalvai, Gábor TI - Az iharkúti késő-kréta (santoni) kontinentális gerinces lelőhely szedimentológiai, tafonómiai és paleoökológiai vizsgálata PB - Eötvös Loránd Tudományegyetem (ELTE) PY - 2018 SP - 170 DO - 10.15476/ELTE.2017.173 UR - https://m2.mtmt.hu/api/publication/30412535 ID - 30412535 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Choi, S AU - Han, S AU - Kim, NH AU - Lee, YN TI - A comparative study of eggshells of Gekkota with morphological, chemical compositional and crystallographic approaches and its evolutionary implications JF - PLOS ONE J2 - PLOS ONE VL - 13 PY - 2018 IS - 6 PG - 31 SN - 1932-6203 DO - 10.1371/journal.pone.0199496 UR - https://m2.mtmt.hu/api/publication/30566041 ID - 30566041 N1 - Cited By :19 Export Date: 16 September 2022 CODEN: POLNC Correspondence Address: Choi, S.; School of Earth and Environmental Sciences, South Korea; email: seung0521@snu.ac.kr AB - The Gekkota is an important clade in the evolution of calcified eggshells in that some of its families lay rigid eggshells like archosaurs. However, the fundamental differences and similarities between the mechanism of rigid eggshell formation of the Gekkota and Archosauria have not been investigated thoroughly due to the lack of knowledge of gekkotan eggshells. Here, we report for the first time a comprehensive analysis of morphological, chemical compositional, and crystallographic features of rigid and soft gekkotan eggshells. Exhaustive morphological description provided common characters for gekkotan eggshells, as well as unique features of each species. We found that elemental distribution of rigid gekkotan eggshells is different from that of avian eggshells, especially in the case of Mg and P. In addition, the crystallographic features (size, shape, and alignment of calcite grains) of gekkotan eggshells are completely different from those of archosaur eggshells. The result of this study suggests that soft gekkotan eggshells are morphologically more similar to tuatara eggshells rather than soft eggshells of derived squamates. The chemical compositional analysis suggests that the eggshell may act as a mineral reservoir for P and F as well as Ca. More importantly, all chemical compositions and crystallographic features imply that the gekkotan eggshell formation may begin at the outer surface and growing down to the inner surface, which is opposite to the direction of the archosaur eggshell formation. This character would be crucial for identifying fossil gekkotan eggs, which are poorly known in paleontology. All these lines of evidence support that soft gekkotan and tuatara eggshells share the primitive characters of all lepidosaurid eggshells. Finally, gekkotan and archosaur rigid eggshells represent a typical example of convergent evolution in the lineage of the Sauropsida. LA - English DB - MTMT ER -