Is Copytus Skogsberg, 1939 (Crustacea: Ostracoda) a neocytherideid? With description of a new family and two new species Author Coimbra, João Carlos Author Bergue, Cristianini Trescastro Author Ramos, Maria Inês Feijó text Zootaxa 2020 2020-01-29 4729 2 177 194 journal article 24222 10.11646/zootaxa.4729.2.2 b44745ed-b90a-4b62-b636-23c48c56471a 1175-5326 3632249 EC42F789-C869-4551-998E-CC819044C775 Copytus cretaceous (sic) Echevarría, 1988 . Probably the oldest Copytus species ever described is C. cretaceous (sic) Echevarría, 1988 from the Maastrichtian of the Province of Chubut , Argentinian Patagonia. This is notably smaller than other species, being only 0.48 mm long. It is slightly similar to C. laevata in outline but with a more pointed anterior margin and a faint ventral rib. Although Echevarría (1988) stated that the muscle scars cannot be clearly seen due to recrystallization, we believe that the trace of a circular aggregate of four scars can be seen with the aid of a magnifying glass on Echevarría’s fig. 2 of pl. 1. Ceolin et al. (2015) illustrated Copytus sp., a species recovered from the Maastrichtian/Danian of the Neuquén Basin, Argentina . It is similar to the Echevarría’s species, but rather larger (l = 0.649 mm ).