Biostratinomic analysis of Lycoptera beds from the Early Cretaceous Yixian Formation, western Liaoning, China

Journal article


Publication Details

Author(s): Pan YH, Fürsich F, Zhang JY, Wang YQ, Zheng XT
Journal: Palaeontology
Publisher: Blackwell Publishing Ltd
Publication year: 2015
Volume: 58
Journal issue: 3
Pages range: 537-561
ISSN: 0031-0239
Language: English


Abstract


Little is known about the palaeoenvironments of the Early Cretaceous lakes of western Liaoning. Uncertainties exist especially about the water depth, water temperatures and annual temperature fluctuations. Here, we analyse the preservation of the most abundant fish of the lakes, the teleost Lycoptera, articulated skeletons of which occur in large concentrations suggestive of mass mortality. Taphonomic features such as degree of disarticulation, orientation patterns and displacement of skeletal elements reveal distinct preservational patterns. They suggest that the water temperature was low during winter and exhibited pronounced seasonal fluctuations. The depth of the lakes was not deep. Possible causes of the fish mortality are discussed, of which anoxia is favoured. This leads to a more refined palaeoenvironmental model for these palaeolakes, which harbour one of the most important Mesozoic Lagerstätten.



FAU Authors / FAU Editors

Fürsich, Franz Prof. Dr.
Lehrstuhl für Paläontologie


External institutions
Nanjing Institute of Geology and Paleontology
University of Chinese Academy of Sciences


How to cite

APA:
Pan, Y.-H., Fürsich, F., Zhang, J.-Y., Wang, Y.-Q., & Zheng, X.-T. (2015). Biostratinomic analysis of Lycoptera beds from the Early Cretaceous Yixian Formation, western Liaoning, China. Palaeontology, 58(3), 537-561. https://dx.doi.org/10.1111/pala.12160

MLA:
Pan, Yan-Hong, et al. "Biostratinomic analysis of Lycoptera beds from the Early Cretaceous Yixian Formation, western Liaoning, China." Palaeontology 58.3 (2015): 537-561.

BibTeX: 

Last updated on 2018-08-08 at 01:28