New dinosaur egg material from Yunxian, Hubei Province, China resolves the classification of dendroolithid eggs

• Autorzy: Zhang S. , Yang T.-R. , Li Z. , Hu Y.
• Języki publikacji: EN

Abstrakty

EN

The oofamily Dendroolithidae is a distinct group of dinosaur eggs reported from China and Mongolia, which is characterized by branched eggshell units and irregular pore canals. The ootaxonomic inferences, however, were rarely discussed until now. A colonial nesting site was recently uncovered from the Qinglongshan region, Yunxian, Hubei Province, China. More than 30 dendroolithid egg clutches outcrop on the Tumiaoling Hill, including an extremely gigantic clutch containing 77 eggs. All clutches were exposed in the Upper Cretaceous fluvial-deposited Gaogou For mation. In this study, we emend the diagnosis of the oogenus Placoolithus and assign all dendroolithid eggs from the Tumiaoling Hill to a newly emended oospecies Placoolithus tumiaolingensis that shows greatly variable eggshell microstructure. Moreover, our study also disentangles the previous vexing classification of dendroolithid eggs. We conclude that Dendroolithus tumiaolingensis, D. hongzhaiziensis, and Paradendroolithus qinglongshanensis, all of which were previously reported from Yunxian, should be assigned to the newly emended oospecies Placoolithus tumiaolingensis.

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2018
• Tom: 63
• Numer: 4
• Opis fizyczny: p.671-678,fig.,ref.

Twórcy

autor

Zhang S.

• Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Science, 142 Xizhimenwai Street, Beijing, China

autor

Yang T.-R.

• Steinmann-Institut fur Geologie, Mineralogie and Palaontologie, Rheinische-Friedrich-Wilhelms Universitat Bonn, Nussallee 8, Bonn, Germany

autor

Li Z.

• Hubei Institute of Geoscience, 9 Gutian 5th Road, Wuhan, Hubei Province, China

autor

Hu Y.

• Qinglongshan Dinosaur-Egg Fossil Cluster National Geopark, Special 1 Qinglongshan Village, Liubei, Shiyan, Hubei Province, China

Bibliografia

• Araujo, R., Castanhinha, R., Martins, R.M.S., Mateus, O., Hendrickx, C., Beckmann, F., Schell, N., and Alves, L.C. 2013. Filling the gaps of dinosaur eggshell phylogeny: Late Jurassic theropod clutch with embyro from Portugal. Scientific Reports 3: 1924.
• Cohen, S., Cruickshank, A.R.I., Joysey, K.A., Manning, T.W., and Upchurch, P. 1995. The Dinosaur Egg and Embryo Project: Exhibition Guide. 16 pp. Rock Art Publishers, Leicester.
• Fang, X.S., Lu, L.W., Cheng, Z.W., Zou, Y.P., Pang, Q.Q., Wang, Y.M., Chen, K.Q., Yin, Z., Wang, X.H., Liu, J.R., Xie, H.L., and Jin, Y.G. 1998. On the Cretaceous Fossil Eggs of Xixia County, Henan Province [in Chinese, with English summary]. 125 pp. Geological Publishing House, Beijing.
• Fang, X.S., Wang, Y.Z., and Jiang, Y.G. 2000. On the Late Cretaceous fossil eggs of Tiantai, Zhejiang [in Chinese, with English abstract]. Geological Review 46: 105–112.
• Kim, S.B., Kim, Y.G., Jo, H.R., Jeong, K.S., and Chough, S.K. 2009. Depositional facies, architecture and environments of the Sihwa Formation (Lower Cretaceous), mid-west Korea with special reference to dinosaur eggs. Cretaceous Research 30: 100–126.
• Kundrát, M., Cruickshank, A.R.I., Manning, T.W., and Nudds, J. 2008. Embryos of therizinosauroid theropods from the Upper Cretaceous of China: diagnosis and analysis of ossification patterns. Acta Zoologica 89: 231–251.
• Li, Z.Q. 2001. Distribution, burying and classification of dinosaur fossils in Upper Cretaceous strata at Meipu Town, Yunxian County of Hubei Province [in Chinese, with English abstract]. Hubei Geology & Mineral Resource 15 (4): 25–31.
• Liu, J.Y. and Zhao, Z.K. 2004. A new oospecies of the dinosaur eggs (Dictyoolithus) from Laiyang, Shandong Province [in Chinese, with English summary]. Vertebrata PalAsiatica 42 (2): 166–170.
• Mikhailov, K.E. 1991. Classification of fossil eggshells of amniotic vertebrates. Acta Palaeontologica Polonica 36: 193–238.
• Mikhailov, K.E. 1994. Eggs of sauropod and ornithopod dinosaurs from the Cretaceous deposits of Mongolia. Paleontological Journal 28: 141–159.
• Mikhailov, K.E. 1997. Fossil and recent eggshells in amniotic vertebrates: fine structure, comparative morphology and classification. Special Papers in Palaeontology 56: 1–80.
• Mikhailov, K.E., Sabath, K., and Kurzanov, S. 1994. Eggs and nests from the Cretaceous of Mongolia. In: K. Carpenter, K.F. Hirsch, and J.R. Horner (eds.), Dinosaur Eggs and Babies, 88–115. Cambridge University Press, Cambridge.
• Miller, J.D. 2017. Reproduction of sea turtles. In: P. Lutz and J.A. Musick (eds.), The Biology of Sea Turtles, Volume 1, 65–96. CRC Press, Boca Raton.
• Moreno-Azanza, M., Bauluz, B., Canudo, J.I., Gasca, J.M., and Torcida Fernández-Baldor, F. 2016. Combined use of electron and light microscopy techniques reveals false secondary shell units in Megaloolithidae eggshells. PLoS ONE 11 (5): e0153026.
• Stoddard, M.C., Yong, E.H., Akkaynak, D., Sheard, C., Tobias, J.A., and Mahadevan, L. 2017. Avian egg shape: Form, function, and evolution. Science 356: 1249–1254.
• Wang, Q., Wang, X.L., Zhao, Z.K., and Jiang, Y.G. 2012. A new oofamily of dinosaur egg from the Upper Cretaceous of Tiantai Basin, Zhejiang Province, and its mechanism of eggshell formation. Chinese Science Bulletin 57: 3740–3747.
• Wang, Q., Zhao, Z.K., Wang, X.L., Zhang, S.K., and Jiang, Y.G. 2013. New forms of dictyoolithids from the Tiantai Basin, Zhejiang Province of China and a parataxonomic revision of the dictyoolithids. Vertebrata PalAsiatica 51 (1): 43–54.
• Zeng, D.M. and Zhang, J.J. 1979. On the dinosaurian eggs from the western Dongting Basin, Hunan [in Chinese, with English abstract]. Vertebrata PalAsiatica 17 (2): 131–136.
• Zhao, H. and Zhao, Z.K. 1998. Dinosaur eggs from Xichuan Basin, Henan Province [in Chinese, with English summary]. Vertebrata PalAsiatica 36 (4): 282–296.
• Zhao, Z.K. 1993. Structure formation and evolutionary trends of dinosaur eggshells. In: I. Kobayashi, H. Mutvei, and A. Sahni (eds.), Structure, Formation and Evolution of Fossil Hard Tissues, 195–212. Tokai University Press, Tokyo.
• Zhao, Z.K. 1994. Dinosaur eggs in China: On the structure and evolution of eggshells. In: K. Carpenter, K.F. Hirsch, and J.R. Horner (eds.), Dino saur Eggs and Babies, 184–203. Cambridge University Press, Cambridge.
• Zhao, Z.K. and Li, Z.C. 1988. A new structural type of the dinosaur eggs from Anlu County, Hubei Province [in Chinese, with English summary]. Vertebrata PalAsiatica 26 (2): 107–115.
• Zhao, Z.K., Wang, Q., and Zhang, S.K. 2015. Palaeovertebrata Sinica, Volume II, Amphibians, Reptilians, and Avians, Fascicle 7 (Serial no. 11): Dinosaur Eggs [in Chinese]. 172 pp. Science Press, Beijing.
• Zhou, X.G., Ren, Y.F., Xu, S.Q., and Guan, K.N. 1998. Dinosaur eggs from the Late Cretaceous from the Qinglongshan Region, Yunxian, Hubei Province [in Chinese, with English abstract]. Hubei Geology & Mineral Resource 12 (3): 1–8.
• Zou, S.L., Wang, Q., and Wang, X.L. 2013. A new oospecies of parafaveoloolithids from the Pingxiang Basin, Jiangxi Province of China [in Chinese, with English abstract]. Vertebrata PalAsiatica 51 (2): 102–106.

Identyfikatory

DOI

10.4202/app.00523.2018