Listed in Peridiniaceae in AlgaeBase (2019 version), but in Peridiniopsidaceae according to Kretschmann et al., 2020.
Kretschmann, J.; Žerdoner Čalasan, A.; Meyer, B.; Gottschling, M. (2020). Zero intercalary plates in Parvodinium (Peridiniopsidaceae, Peridiniales) and phylogenetics of P. elpatiewskyi, comb. nov. <em>Protist.</em> 171(1): 125700.