@article{Chen_2022,
title={Anatomy of Stigmaria asiatica Jongmans et Gothan from the Asselian (lowermost Permian) of Wuda Coalfield,
Inner Mongolia,
North China},
volume={31},
ISSN={1871-174X},
url={http://dx.doi.org/10.1016/j.palwor.2021.05.001},
DOI={10.1016/j.palwor.2021.05.001},
number={2},
journal={Palaeoworld},
publisher={Elsevier BV},
author={Chen,
Bi-Yun and Wan,
Ming-Li and Zhou,
Wei-Ming and Wang,
Shi-Jun and Wang,
Jun},
year={2022},
month=jun,
pages={311–323} }