Permosynidae

Permosynidae is an extinct family of beetles known from the Permian to Cretaceous. It is sometimes treated as a form family, because all known members were described from fossils of isolated elytra with punctate striae.

Taxonomy
After:
 * Alveolacupes Lin, 1983 (also spelled Alveolicupes)
 * Alveolacupes primus Lin, 1983
 * Alveolacupes secundes Lin, 1983
 * Artematopodites Ponomarenko, 1990
 * Artematopodites crispulus Yan in Yan and Zhang, 2010
 * Artematopodites insculptus (Zhang, 1997)
 * Artematopodites latissimus Ponomarenko, 2014
 * Artematopodites latus Ponomarenko, 1990
 * Artematopodites lepidus Yan in Yan and Zhang, 2010
 * Artematopodites leskoviensis Yan in Yan and Zhang, 2010
 * Artematopodites longus (Hong, 1983)
 * Artematopodites lozowskii Ponomarenko, 2015
 * Artematopodites major Ponomarenko, 1990
 * Artematopodites maximus Yan in Yan and Zhang, 2010
 * Artematopodites prolixus (Zhang, 1997)
 * Artematopodites propinquus (Zhang, 1997)
 * Artematopodites shaanbeiensis Hong, 1995
 * Bistrisyne Lin, 1986
 * Bistrisyne tenua Lin, 1986
 * Delpuentesyne Martins-Neto and Gallego, 2007
 * Delpuentesyne menendezi Martins-Neto and Gallego, 2007
 * Diarcuipenna Lin, 1986
 * Diarcuipenna bennettitophila Ponomarenko, 2011
 * Diarcuipenna heterosa Lin, 1986
 * Dinoharpalus Handlirsch, 1906
 * Dinoharpalus coptoclavoides Ponomarenko, 2015
 * Dinoharpalus latus Ponomarenko, 2015
 * Dinoharpalus liasinus (Giebel, 1856)
 * Dinoharpalus martynovi Ponomarenko, 2018
 * Dinoharpalus rugosus Ponomarenko, 1985
 * Dzeregia Ponomarenko, 1985
 * Dzeregia ampla Ponomarenko, 1990
 * Dzeregia byrrhoides Ponomarenko, 1990
 * Dzeregia crassa Ponomarenko, 1990
 * Dzeregia juxta (Lin, 1986)
 * Dzeregia lata Ponomarenko, 1985
 * Dzeregia longa Ponomarenko, 1985
 * Dzeregia pilula Ponomarenko, 1990
 * Dzeregia platis Ponomarenko, 2014
 * Dzeregia striata Ponomarenko, 1985
 * Hydrobiites Heer, 1865
 * Hydrobiites anglicus Handlirsch, 1906
 * Hydrobiites bellus (Geinitz, 1894)
 * Hydrobiites convexus Ponomarenko, 1985
 * Hydrobiites crassus Ponomarenko, 1985
 * Hydrobiites dobbertinensis Handlirsch, 1939
 * Hydrobiites giebeli Handlirsch, 1906
 * Hydrobiites handlirschi Ponomarenko, 2011
 * Hydrobiites liasinus (Giebel, 1856)
 * Hydrobiites longus Ponomarenko, 1990
 * Hydrobiites minor Ponomarenko, 2014
 * Hydrobiites minutissimus Ponomarenko, 1985
 * Hydrobiites mongolicus Ponomarenko, 2014
 * Hydrobiites permianus Ponomarenko, 2018
 * Hydrobiites punctatostriatus Handlirsch, 1939
 * Hydrobiites purbeccensis (Giebel, 1856)
 * Hydrobiites sulcatus Ponomarenko, 1986
 * Hydrobiites tillyardi Ponomarenko, 2011
 * Hydrobiites veteranus (Heer, 1852)
 * Hydrobiites vladimiri Ponomarenko, 2011
 * Ischichucasyne Martins-Neto and Gallego, 2005
 * Ischichucasyne cladocosta Martins-Neto and Gallego, 2009
 * Ischichucasyne santajuanaensis Martins-Neto and Gallego, 2005
 * Palademosyne Rohdendorf, 1961
 * Palademosyne martynovae Rohdendorf, 1961
 * Palademosyne natalensis Ponomarenko, 2005
 * Permocrossos Martynov, 1932
 * Permocrossos elongatus Martynov, 1932
 * Permosyne Tillyard, 1924
 * Permosyne affinis Tillyard, 1924
 * Permosyne belmontensis Tillyard, 1924
 * Permosyne dentata Ponomarenko, 2003
 * Permosyne elongata Ponomarenko, 2005
 * Permosyne mitchelli Tillyard, 1924
 * Permosyne rasnitsyni Ponomarenko, 2011
 * Platycrossos Dunstan, 1923
 * Platycrossos caroli Ponomarenko, 2011
 * Platycrossos elongatus Ponomarenko, 1985
 * Platycrossos latus Ponomarenko, 2014
 * Platycrossos ligulatus Dunstan, 1923
 * Platycrossos longus Ponomarenko, 2014
 * Platycrossos loxonicus Ponomarenko, 2014
 * Platycrossos mongolicus Ponomarenko, 2014
 * Platycrossos ovum Ponomarenko, 2014
 * Platycrossos petalus Ponomarenko, 1985
 * Platycrossos punctatus Ponomarenko, 1985
 * Platycrossos subtumidus Dunstan, 1923
 * Platycrossos tumidus (Tillyard, 1916)
 * Pseudorhynchophora Handlirsch, 1906
 * Pseudorhynchophora convexa Ponomarenko, 2008
 * Pseudorhynchophora olliffi Handlirsch, 1906
 * Sakmaracoleus Ponomarenko, 2013
 * Sakmaracoleus orenburgensis Ponomarenko, 2013
 * Tychtocoleus Rohdendorf, 1961
 * Tychtocoleus europaeus (Ponomarenko, 2003)
 * Tychtocoleus neuburgae Rohdendorf, 1961
 * Tychtocoleus popovi Ponomarenko, 2018
 * Umkomaasia Zeuner, 1960
 * Umkomaasia depressa Zeuner, 1960