Why Are There Stones Alongside Railway Tracks?
https://www.scienceabc.com/pure-sciences/why-are-there-stones-train-ballast-alongside-railway-tracks.html
Anomalocaris, the largest known Cambrian arthropod, D. E. G. Briggs
https://www.google.com/url?q=https://www.palass.org/publications/palaeontology-journal/archive/22/3/article_pp631-664&sa=D&source=docs&ust=1638178732750000&usg=AOvVaw3h4UgvEbpJFXl4hOLyAWU7
Anomalocaris and Other Large Animals in the Lower Cambrian Chengjiang Fauna of Southwest China, Hou Xian‐Guang
https://www.google.com/url?q=https://www.researchgate.net/publication/233050167_Anomalocaris_and_Other_Large_Animals_in_the_Lower_Cambrian_Chengjiang_Fauna_of_Southwest_China&sa=D&source=docs&ust=1638178750800000&usg=AOvVaw2gLG6brn5sokV6dVf5McSy
カンブリア紀のアノマロカリスの遊泳行動の獲得、五十嵐地広(PDFファイル)
http://hokkaido.jspe.or.jp/proc_archive/2017/pdf/17-C-04.pdf