New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera) Author Prokin, Alexander A. Author Petrov, Pyotr N. Author Wang, Bo Author Ponomarenko, Alexander G. text Zootaxa 2013 3666 2 137 159 journal article 10.11646/zootaxa.3666.2.2 930d392c-8720-4820-85eb-501985209cf3 1175-5326 220466 1F8D4E8A-2447-4556-9B98-D8229D858194 Cretodytes Ponomarenko, 1977 Type species : Cretodytes latipes Ponomarenko, 1977 . Notes : The genus is characterized by the short lateral lobe of the metaventrite, deep and rather wide cavity at the apex of the anterior metaventral process, and elevated median platforms of metacoxae, which are weakly diverging, but dilated and rounded apically. It differs from Palaeodytes in the longest point of the metacoxal plate situated at the level of the external margin of mesocoxae, and in the shorter lateral lobe of the metaventrite (which also distinguishes it from Liadytiscinae); from " Palaeodytes " incompletus it differs in the shape of the lateral lobe of the metaventrite and shape of the metacoxal processes; and from Sinoporus , in the concave posterior margins of the lateral lobes of the metaventrite (cf. Figs 20 and 23 ). The new species belongs to this genus according to the combination of two characters: metacoxal plate three times as long as the lateral lobe of the metaventrite and absence of a laterally limited elevated median area of the metaventrite.