Placatenellidae Mooi, Martinez, Del Rio & Feijo Ramos 2018

Mooi, Martinez, Del Rio & Feijo Ramos 2018. Late Oligocene-Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species. Zootaxa, 4369(3), Jan 5 2018: 301-326