Prochydorus, SMIRNOV, 1992

Kotov, Alexey A., 2009, A revision of the extinct Mesozoic family Prochydoridae Smirnov, 1992 (Crustacea: Cladocera) with a discussion of its phylogenetic position, Zoological Journal of the Linnean Society 155 (2), pp. 253-265 : 254

1. GENUS PROCHYDORUS SMIRNOV, 1992

Smirnov, 1992 a: 112.

Type (sole) species: Prochydorus rotundus Smirnov, 1992 .

Diagnosis: Body very high (in life, animal was probably globular in shape), with postero-dorsal angle well expressed, head massive, with head capsule of the ‘daphniid’ type (not compressed dorso-ventrally), valves without marginal setae, antenna II relatively short, mandible attached to valve margin.