How to cite 

Tendal Os, Swinbanks Dd, Shirayama Y (1982). A new infaunal xenophyophore (xenophyophorea, protozoa) with notes on its ecology and possible trace fossil analogs. Oceanologica Acta, 5(3), 325-329. Open Access version : https://archimer.ifremer.fr/doc/00120/23170/