In many later publications the specific name is misspelled "bonarelli", with a single "i", from the incorrect assumption it would be derived from a Latinised "Bonarell~ius". The fossil, found near the Lago Colhué Huapi in Chubut, was eventually described by Friedrich von Huene in 1929, but it has since been lost.
The scientific name is often misspelled as "bonarelli" with a single "i", due to an incorrect assumption that it would be derived from a Latinized version of "Bonarell~ius". The fossil, found near Lago Colhué Huapi in Chubut, was initially described by Friedrich von Huene in 1929, but has since been lost.