Darin Croft, professor of anatomy, worked with Guillermo López of the Museo de La Plata in Argentina to co-edit a special annual issue of the journal Ameghiniana. The issue focused on extinct mammals and included eight articles, most of which were presented at a 2018 symposium in Colombia organized by Croft and López.
In addition to editing, Croft also co-authored three of the articles included in the issue. One of these articles names a new species of small ungulate from a site in Bolivia called Cerdas. Another article, whose first author is a CWRU graduate, names two new species of larger ungulates from the Bolivian site Quebrada Honda.