Zhang, Li-Jun; Zhao, Zhao (2015). "Complex behavioural patterns and ethological analysis of the trace fossil Zoophycos: Evidence from the Lower Devonian of South China". Lethaia. 49 (2): 275–284. doi:10.1111/let.12146.
McIlroy, Duncan; Logan, Graham A. (1999). "The Impact of Bioturbation on Infaunal Ecology and Evolution during the Proterozoic-Cambrian Transition". PALAIOS. 14 (1): 58–72. Bibcode:1999Palai..14...58M. doi:10.2307/3515361. JSTOR3515361.
Zhang, Li-Jun; Zhao, Zhao (2015). "Complex behavioural patterns and ethological analysis of the trace fossil Zoophycos: Evidence from the Lower Devonian of South China". Lethaia. 49 (2): 275–284. doi:10.1111/let.12146.
McIlroy, Duncan; Logan, Graham A. (1999). "The Impact of Bioturbation on Infaunal Ecology and Evolution during the Proterozoic-Cambrian Transition". PALAIOS. 14 (1): 58–72. Bibcode:1999Palai..14...58M. doi:10.2307/3515361. JSTOR3515361.
McIlroy, Duncan; Logan, Graham A. (1999). "The Impact of Bioturbation on Infaunal Ecology and Evolution during the Proterozoic-Cambrian Transition". PALAIOS. 14 (1): 58–72. Bibcode:1999Palai..14...58M. doi:10.2307/3515361. JSTOR3515361.