D. S. Aristov, Grylloblattids of the family Ideliidae (Insecta: Grylloblattida) from the Lower Permian of the Ural Mountains, Paleontol, J, vol.36, pp.44-47, 2002.

O. Béthoux, Revision of Cacurgus Handlirsch, 1911, a basal Pennsylvanian Archaeorthoptera (Insecta: Neoptera, Nat. Hi, vol.47, pp.29-35, 2006.

O. Béthoux, A. B. Nel, W. B. Zhu, and X. L. He, Venation pattern and revision of Orthoptera sensu nov. and sister groups, Phylogeny of Palaeozoic and Mesozoic Orthoptera sensu nov, Early Early Permian brachiopod fauna from Yangquan, vol.96, pp.353-364, 1999.

J. H. Gao, The Paleoecological features and environment background of brachiopod from the Taiyuan formation in Shanxi Province, Geoscience, vol.2, pp.175-185, 1988.

B. X. Ge, G. X. Yiu, C. Li, . Sh, and A. Handlirsch, A Preliminary study on sedimentary environments and law of coal-bearing formation in Yangquan, Acta Sedimentol. Sin, vol.3, pp.353-377, 1911.

A. Lameere, Sur la nervation alaire des Insectes, B. Cl. Sci. Ac. Roy. Bel, vol.8, pp.138-149, 1922.

A. Lameere, On the wing-venation of insects, Psyche, vol.30, pp.123-132, 1923.

C. Linnaeus, Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, pp.824-1758

A. V. Martynov, . Trudy-pervovo-vserossijskovo-s'exda-zoologov, and S. Y. Anatomov-i-gistologov-;-storozhenko, On two basic types of insect wings and their significance for the general classification of insects, Sistematika, filogeniya i evolyutsiya grilloblattidovykh nasekomykh (Insecta: Grylloblattida), Dal'nauka, pp.88-89, 1923.

M. L. Wan, W. Yang, X. He, . Zh, L. J. Liu et al., First record of fossil basidiomycete clamp connections in cordaitalean stems from the Asselian-Sakmarian (lower Permian) of Shanxi Province, Palaeogeogr. Palaeocl, vol.466, pp.353-360, 2017.

J. Wang, Late Paleozoic macrofloral assemblages from Weibei Coalfield, with reference to vegetational change through the Late Paleozoic Ice-age in the North China Block, Int. J. Coal Geol, vol.83, pp.292-317, 2010.

X. Y. Wu, X. X. Li, Z. Y. Zhou, C. Y. Cai, G. Sun et al., Fossil Floras of China Through the Geological Ages, pp.58-93, 1995.

H. X. Zhang, The late Paleozoic brachiopod communities and their environmental significance from Shuiquangou, Inner Mongolia Sci. Technol. & Econ, vol.1, pp.75-76, 2017.