1994-1998年 兰州大学生物系，获理学学士学位。
2000-2004年 中国科学院南京地质古生物研究所，攻读硕士学位，研究方向为分子古生物学。
2005-2015年 中国科学院南京地质古生物研究所分子古生物实验室，助理研究员。
2015年至今 中国科学院南京地质古生物研究所分子古生物实验室，副研究员。[1]
研究领域鳃足纲及其相关甲壳动物的分子与形态功能演化[1]
科研项目青年基金一项，基础性项目一项[1]
代表论著Sun Xiaoyan, Xia Xuhua, Yang Qun, 2015 (accepted). Dating the origin of major lineages of Branchiopoda. Palaeoworld.[SCI-E]
Sun Xiaoyan, Shao LL, Peng CM, Hao JS, 2014. The complete mitochondrial genome of Eurema hecabe (Lepidoptera: Pieridae: Coliadinae). Mitochondrial DNA. DOI: 10.3109/19401736.2013.855751. [SCI]
Cheng Chunhui, Sun Xiaoyan, Yonghua Gai, Jiasheng Hao. 2014. The complete mitochondrial genome of the Epacanthaclisis banksi (Neuroptera: Myrmeleontidae). Mitochondrial DNA. DOI: 10.3109/19401736.2013.855910. [SCI]
Sun, X. Y., Yang, Q. Xia, X. 2013. An Improved Implementation of Effective Number of Codons (Nc). Molecular Biology and Evolution. 30(1) 191-196.
孙晓艳，杨群，2012. 叶肢介颈器的超微形态特征及其演化意义。古生物学报. 51(3): 281-289.
Sun, X. Y., Yang, Q. Xia, X. 2012. An Improved Implementation of Effective Number of Codons (Nc). Molecular Biology and Evolution doi: 10.1093/molbev/mss201.
Q-Q Sun, X-Y Sun, X-C Wang, Y-H Gai, J Hu, C-D Zhu, J-S Hao. 2012. The Complete Sequence of the Mitochondrial Genome of the Japanese buff-tip moth, Phalera flavescens (Lepidoptera: Notodontidae). Genetics and molecular research doi: 10.4238/2012.September.10.2.
TIAN Li-Li, SUN Xiao-Yan, CHEN Mei, GAI Yong-Hua, HAO Jia-Sheng, YANG Qun. 2012. Complete mitochondrial genome of the Five-dot Sergeant Parathyma sulpitia (Nymphalidae: Limenitidinae) and its phylogenetic implications. Zoological Research. 33(2): 133?143.
Jiasheng Hao, Qianqian Sun, Huabin Zhao, Xiaoyan Sun, Yonghua Gai, Qun Yang. 2012. The Complete Mitochondrial Genome of Ctenoptilum vasava (Lepidoptera: Hesperiidae: Pyrginae) and Its Phylogenetic Implication. Comparative and Functional Genomics doi:10.1155/2012/328049.
孙晓艳，夏旭华，杨群, 2011. 基于28S rDNA D1-D2基因片段与16S rDNA部分序列联合分析的叶肢介系统发育研究. 微体古生物学报. 28(4):370-380.
WANG Xiao-Can, SUN Xiao-Yan, SUN Qian-Qian, ZHANG Da-Xiu, HU Jing, YANG Qun, HAO Jia-Sheng. 2011. The complete mitochondrial genome of the laced fritillary Argyreus hyperbius (Lepidoptera: Nymphalidae). Zoological Research. 32(5): 465-475.
Sun Xiaoyan, Yang Qun, Shen Yanbin. 2006. Jurassic radiation of large Branchiopoda (Arthropoda: Crustacea) using secondary structure-based phylogeny and relaxed molecular clocks. Progress in Natural Science, 16 (special issue): 292-302.(SCIE)
Yang Qun, Ma Junye, Sun Xiaoyan, Cong Peiyun, 2007. Phylochronology of early metazoans: combined evidence from molecular and fossil data. Geological Magazine, 42(3/4): 281-295. (SCI)[1]
