古生代psammichnitids(砂迹类)的行为习性演化及其生物古地理迁移*
张立军1, 庞志超1, 杨琦琦1, 樊柳1, 魏凡2,3, 宋慧波1, 牛永斌1

Behavioural evolution pattern and biogeographical migration of the Paleozoic psammichnitids
ZHANG Lijun1, PANG Zhichao1, YANG Qiqi1, FAN Liu1, WEI Fan2,3, SONG Huibo1, NIU Yongbin1
古生代psammichnitids的时空分布和多样性分异(古大陆底图源自互联网https://deeptimemaps.com/)