Opinions from Y. I. Bogomolov 1989

  • 'Ammonites bidichotomus is recombined as Polyptychites (Dichotomites) bidichotomus'
  • 'Ammonites polyptychus is recombined as Polyptychites (Polyptychites) polyptychus'
  • 'Ammonites polyptychus stubendorffi is recombined as Euryptychites (Propolyptychites) stubendorffi'
  • 'Amundiptychites is a subjective synonym of Polyptychites'
  • 'Amundiptychites chatangensis belongs to Amundiptychites' according to Golbert and Klimova 1983
  • 'Amundiptychites chatangensis is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Amundiptychites sachsi belongs to Amundiptychites' according to Golbert and Klimova 1983
  • 'Amundiptychites sachsi is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Amundiptychites sverdrupi is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Astieriptychites is a subjective synonym of Euryptychites'
  • 'Astieriptychites astieriformis is a subjective synonym of Euryptychites (Euryptychites) astieriptychus'
  • 'Astieriptychites astieriptychus is recombined as Euryptychites (Euryptychites) astieriptychus'
  • 'Astieriptychites sphaericiformis belongs to Astieriptychites' according to Gordeev 1971
  • 'Astieriptychites sphaericiformis is a subjective synonym of Euryptychites (Euryptychites) astieriptychus'
  • 'Astieriptychites tenuiptychus belongs to Astieriptychites' according to Bodylevsky 1960
  • 'Astieriptychites tenuiptychus is a subjective synonym of Euryptychites (Euryptychites) astieriptychus'
  • 'Bodylevskites is a subjective synonym of Euryptychites'
  • 'Dichotomites was reranked as Polyptychites (Dichotomites) and belongs to Polyptychites'
  • 'Dichotomites (Dichotomites) bidichotomoides belongs to Dichotomites (Dichotomites)' according to Kemper 1978
  • 'Dichotomites (Dichotomites) bidichotomoides is recombined as Polyptychites (Dichotomites) bidichotomoides'
  • 'Dichotomites (Dichotomites) involutus belongs to Dichotomites (Dichotomites)' according to Burdykina 1983
  • 'Dichotomites (Dichotomites) involutus is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Dichotomites (Dichotomites) romani belongs to Dichotomites (Dichotomites)' according to Kemper 1978
  • 'Dichotomites (Dichotomites) romani is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Dichotomites (Prodichotomites) hollwedensis is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Ringnesiceras (Ringnesiceras) tozeri is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Dichotomites mangyschlakensis belongs to Dichotomites' according to Luppov 1983
  • 'Dichotomites mangyschlakensis is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Dichotomites toryschensis belongs to Dichotomites' according to Luppov 1983
  • 'Dichotomites toryschensis is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Euryptychites belongs to Polyptychitidae'
  • 'Euryptychites (Euryptychites) belongs to Euryptychites'
  • 'Euryptychites pateraeformis is a subjective synonym of Euryptychites (Propolyptychites) globulosus'
  • 'Euryptychites splendens belongs to Euryptychites' according to Bodylevsky 1968
  • 'Euryptychites splendens is a subjective synonym of Euryptychites (Euryptychites) astieriptychus'
  • 'Neopolyptychites is a subjective synonym of Euryptychites'
  • 'Neopolyptychites arcticus belongs to Neopolyptychites' according to Shulgina 1983
  • 'Neopolyptychites arcticus is recombined as Euryptychites (Propolyptychites) arcticus'
  • 'Neopolyptychites asiaticus belongs to Neopolyptychites' according to Shulgina 1983
  • 'Neopolyptychites asiaticus is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Neopolyptychites bassovi belongs to Neopolyptychites' according to Shulgina 1983
  • 'Neopolyptychites bassovi is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Neopolyptychites klimovae belongs to Neopolyptychites' according to Shulgina 1983
  • 'Neopolyptychites klimovae is a subjective synonym of Euryptychites (Propolyptychites) arcticus'
  • 'Neopolyptychites pachsensis belongs to Neopolyptychites' according to Shulgina 1983
  • 'Neopolyptychites pachsensis is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Olcostephanus (Polyptychites) beani belongs to Olcostephanus (Polyptychites)' according to Pavlow 1892
  • 'Olcostephanus (Polyptychites) beani is recombined as Polyptychites (Polyptychites) beani'
  • 'Olcostephanus (Polyptychites) ramulicosta is recombined as Siberites ramulicosta'
  • 'Olcostephanus (Polyptychites) triplodiptychus is recombined as Polyptychites (Paleodichotomites) triplodiptychus'
  • 'Olcostephanus expansus belongs to Olcostephanus' according to Bogoslovsky 1902
  • 'Olcostephanus expansus is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Olcostephanus keyserlingi is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Olcostephanus lejanus belongs to Olcostephanus' according to Bogoslovsky 1902
  • 'Olcostephanus lejanus is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Olcostephanus rectangulatus is recombined as Siberites rectangulatus'
  • 'Paratollia is a subjective synonym of Euryptychites'
  • 'Polyptychites belongs to Polyptychitidae'
  • 'Polyptychites (Paleodichotomites) belongs to Polyptychites'
  • 'Polyptychites (Polyptychites) belongs to Polyptychites'
  • 'Paratollia emslandensis is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Paratollia tenuicostata is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Polyptychites acuticosta is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites ascendens is recombined as Siberites ascendens'
  • 'Polyptychites asper is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites conferticosta is a subjective synonym of Siberites ramulicosta'
  • 'Polyptychites densicosta belongs to Polyptychites' according to Pavlov 1914
  • 'Polyptychites densicosta is a subjective synonym of Siberites ramulicosta'
  • 'Polyptychites denticulatus is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites depressus is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites frechi belongs to Polyptychites' according to Koenen 1902
  • 'Polyptychites frechi is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Polyptychites globulosus belongs to Polyptychites' according to Koenen 1909
  • 'Polyptychites globulosus is recombined as Euryptychites (Propolyptychites) globulosus'
  • 'Polyptychites kokeni is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites lahuseni is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites laticosta is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites lessingi is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites marginatus is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Olcostephanus michalskii is a subjective synonym of Siberites ramulicosta'
  • 'Polyptychites obtusus is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites praelatus belongs to Polyptychites' according to Koenen 1902
  • 'Polyptychites praelatus is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites pseudopolyptychoides belongs to Polyptychites' according to Shulgina 1983
  • 'Polyptychites pseudopolyptychoides is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites quadrifidus is recombined as Euryptychites (Propolyptychites) quadrifidus'
  • 'Polyptychites rinnei is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites senilis is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites sinzowi is a subjective synonym of Euryptychites (Propolyptychites) quadrifidus'
  • 'Polyptychites sphaeroidalis is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites spinulosus is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites stolleyi is a subjective synonym of Polyptychites (Polyptychites) beani'
  • 'Polyptychites suessi is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites tardescissus belongs to Polyptychites' according to Koenen 1902
  • 'Polyptychites tardescissus is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Polyptychites terscissus belongs to Polyptychites' according to Koenen 1902
  • 'Polyptychites terscissus is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Polyptychites tschekanovskii is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Polyptychites tscherskii belongs to Polyptychites' according to Pavlov 1914
  • 'Polyptychites tscherskii is a subjective synonym of Euryptychites (Propolyptychites) stubendorffi'
  • 'Polyptychites undulatocostatus is a subjective synonym of Euryptychites (Propolyptychites) stubendorffi'
  • 'Polyptychitidae belongs to Perisphinctaceae'
  • 'Prodichotomites is a subjective synonym of Polyptychites'
  • 'Propolyptychites was reranked as Euryptychites (Propolyptychites) and belongs to Euryptychites'
  • 'Ringnesiceras is a subjective synonym of Polyptychites'
  • 'Ringnesiceras (Elleficeras) is a subjective synonym of Polyptychites (Dichotomites)'
  • 'Ringnesiceras (Elleficeras) ellefense is a subjective synonym of Polyptychites (Dichotomites) bidichotomus'
  • 'Ringnesiceras (Ringnesiceras) amundense is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Ringnesiceras (Ringnesiceras) pseudopolyptychum is a subjective synonym of Polyptychites (Polyptychites) polyptychus'
  • 'Siberiptychites is a subjective synonym of Euryptychites'
  • 'Siberites belongs to Polyptychitidae'