Polyptychitidae

Classification

Genera in Polyptychitidae

• Polyptychites — 51 species: Polyptychites ascendens, Polyptychites astieriformis, Polyptychites astieriptychus, Polyptychites balkwilli, Polyptychites beani, Polyptychites brancoi, Polyptychites canadensis, Polyptychites clarkei
• Dichotomites — 19 species: Dichotomites amundensis, Dichotomites bidichotomoides, Dichotomites bidichotomus, Dichotomites complanatus, Dichotomites crassus, Dichotomites ellefensis, Dichotomites fissuratus, Dichotomites flexicosta
• Nikitinoceras — 10 species: Nikitinoceras borealis, Nikitinoceras diptychum, Nikitinoceras euriptychoides, Nikitinoceras hoplitoides, Nikitinoceras inflatum, Nikitinoceras intermedium, Nikitinoceras mokschensis, Nikitinoceras syzranicum
• Tollia — 9 species: Tollia giganteus, Tollia greenlandica, Tollia pentagonalis, Tollia piaseckii, Tollia rutila, Tollia semilaevis, Tollia semisulcata, Tollia tolli
• Virgatoptychites — 7 species: Virgatoptychites arcticus, Virgatoptychites bentheimensis, Virgatoptychites changalassensis, Virgatoptychites globulosus, Virgatoptychites pumilio, Virgatoptychites quadrifidus, Virgatoptychites tenuicostatus
• Surites — 6 species: Surites analogus, Surites mesezhnikowi, Surites pechorensis, Surites simplex, Surites stenomphalus, Surites tealli
• Menjaites — 4 species: Menjaites elegans, Menjaites groenlandicus, Menjaites imperceptus, Menjaites surlyki
• Simbirskites — 4 species: Simbirskites broadi, Simbirskites decheni, Simbirskites lecontei, Simbirskites morvenae
• Hollisites — 3 species: Hollisites dichotomus, Hollisites inflatus, Hollisites lucasi
• Neocraspedites — 3 species: Neocraspedites giganteus, Neocraspedites rectoris, Neocraspedites signalis
• Siberiptychites — 3 species: Siberiptychites fascicostatus, Siberiptychites middendorffi, Siberiptychites pavlovi
• Hertleinites — 2 species: Hertleinites aguila, Hertleinites pecki
• Homolsomites — 2 species: Homolsomites mutabilis, Homolsomites stantoni
• Peregrinoceras — 2 species: Peregrinoceras albidum, Peregrinoceras pressulus
• Subcraspedites — 2 species: Subcraspedites plicomphalus, Subcraspedites sowerbyi
• Astieriptychites — 1 species: Astieriptychites obsoletus
• Hectoroceras — 1 species: Hectoroceras kochi
• Ringnesiceras — 1 species: Ringnesiceras pseudopolyptychites
• Thorsteinssonoceras — 1 species: Thorsteinssonoceras ellesmerensis
• Euryptychites

Source and Attribution

Taxonomic rank data on this page is drawn from the GBIF Backbone Taxonomy, doi.org/10.15468/39omei, GBIF Secretariat, licensed CC BY 4.0. Member-species counts are counts of records held in the Sanctum species index, not a claim of completeness for the family.