Keller, Gerta, and Alfonso Pardo. (2004) 2004. “Disaster Opportunists Guembelitrinidae: Index for Environmental Catastrophes”. Marine Micropaleontology 53 (1-2): 83-116. doi:10.1016/j.marmicro.2004.04.012.
Alfonso Pardo
First name
Alfonso
Last name
Pardo