Taxonomic names from A. Hyatt 1900

  • Acanthopleuroceras, A. Hyatt 1900 [Polymorphitidae]
  • Acrioceras, A. Hyatt 1900 [Ancyloceratidae]
  • Alocolytoceras, A. Hyatt 1900 [Lytoceratidae]
  • Amoeboceras, A. Hyatt 1900 [Prionoceratidae]
  • Anagymnites, A. Hyatt 1900 [Gymnitidae]
  • Anahamulina, A. Hyatt 1900 [Hamulinidae]
  • Anahoplites, A. Hyatt 1900 [Hoplitidae]
  • Analytoceras, A. Hyatt 1900 [Lytoceratidae]
  • Anascaphites, A. Hyatt 1900 [Scaphitidae]
  • Anascaphites ventricosus (Meek and Hayden 1862) [Scaphitidae]
  • Angulatidae, family, A. Hyatt 1900 [unclassified family]
  • Anisoceratidae, family, A. Hyatt 1900 [Anisoceratidae]
  • Anoploceras, A. Hyatt 1900 [Tainoceratidae]
  • Anoploceras ampezzanus (Loretz 1875) [Tainoceratidae]
  • Apleuroceras, A. Hyatt 1900 [Aplococeratidae]
  • Aplococeras, A. Hyatt 1900 [Aplococeratidae]
  • Apsorroceras, A. Hyatt 1900 [Spiroceratidae]
  • Arctoceras, A. Hyatt 1900 [Arctoceratidae]
  • Bostrychoceras, A. Hyatt 1900 [Nostoceratidae]
  • Calycoceras, A. Hyatt 1900 [Acanthoceratidae]
  • Calycoceras navicularis (Mantell 1822) [Acanthoceratidae]
  • Canavarites, A. Hyatt 1900 [Alsatitinae]
  • Ceratites (Florianites), A. Hyatt 1900 [Danubitidae]
  • Codoceras, A. Hyatt 1900 [Polyelasmoceratidae]
  • Cycloceratidae, family, A. Hyatt 1900 [unclassified family]
  • Cyrtorizoceras, A. Hyatt 1900 [Oncoceratidae]
  • Cyrtosiceras, A. Hyatt 1900 [Oppeliidae]
  • Dactylioidae, family, A. Hyatt 1900 [unclassified family]
  • Dasyceras, A. Hyatt 1900 [Phylloceratidae]
  • Dasyceras rakosense (Herbich 1878) [Juraphyllitidae]
  • Diadochoceras, A. Hyatt 1900 [Parahoplitidae]
  • Diaplococeras, A. Hyatt 1900 [Tirolitidae]
  • Diodoceras, A. Hyatt 1900 [Trigonoceratidae]
  • Diplacomoceras, A. Hyatt 1900 [Placenticeratidae]
  • Diplomoceras, A. Hyatt 1900 [Diplomoceratidae]
  • Dipoloceras, A. Hyatt 1900 [Mojsisovicsiidae]
  • Dirrymoceras, A. Hyatt 1900 [Ancyloceratidae]
  • Distoloceras, A. Hyatt 1900 [Neocomitidae]
  • Engonoceratidae, family, A. Hyatt 1900 [Engonoceratidae]
  • Erymnoceras, A. Hyatt 1900 [Pachyceratidae]
  • Gemmellaroceras, A. Hyatt 1900 [Polymorphitidae]
  • Gigantoceras, A. Hyatt 1900 [Gigantoceras]
  • Glochiceras, A. Hyatt 1900 [Oppeliidae]
  • Hemibaculites, A. Hyatt 1900 [Heteroceratidae]
  • Hemibaculites obliquatum (d'Orbigny 1840) [Crioceratitidae]
  • Hyphantoceras, A. Hyatt 1900 [Nostoceratidae]
  • Hystatoceras, A. Hyatt 1900 [Brancoceratidae]
  • Hystatoceratidae, family, A. Hyatt 1900 [Hystatoceratidae]
  • Hysteroceras, A. Hyatt 1900 [Brancoceratidae]
  • Hystrichoceras, A. Hyatt 1900 [unclassified genus]
  • Iberites, A. Hyatt 1900 [Hungaritidae]
  • Jahnnites, A. Hyatt 1900 [Jahnnites]
  • Jahnnites geinitzii, d'Orbigny 1850 [Jahnnites geinitzii]
  • Keyserlingites, A. Hyatt 1900 [Keyserlingitidae]
  • Lenticeratidae, family, A. Hyatt 1900 [Lenticeratidae]
  • Lenticeratinae, subfamily (A. Hyatt 1900) [Sphenodiscidae]
  • Libycoceras, A. Hyatt 1900 [Sphenodiscidae]
  • Lithacoceras, A. Hyatt 1900 [Ataxioceratidae]
  • Lopholobites, A. Hyatt 1900 [Pulchelliidae]
  • Lyticoceras, A. Hyatt 1900 [Neocomitidae]
  • Mammitidae, family, A. Hyatt 1900 [Acanthoceratidae]
  • Meneghiniceras, A. Hyatt 1900 [Juraphyllitidae]
  • Meneghiniceras lariense (Meneghini 1875) [Juraphyllitidae]
  • Metacanthoplites, A. Hyatt 1900 [Acanthoceratidae]
  • Metacanthoplites rhotomagensis (Brongniart 1822) [Acanthoceratidae]
  • Mixosiphonoceras, A. Hyatt 1900 [Jovellaniidae]
  • Morphoceratidae, family, A. Hyatt 1900 [Morphoceratidae]
  • Octameroceras, A. Hyatt 1900 [Hemiphragmoceratidae]
  • Olenikites, A. Hyatt 1900 [Olenikitidae]
  • Ostlingoceras, A. Hyatt 1900 [Turrilitidae]
  • Oxybeloceras, A. Hyatt 1900 [Diplomoceratidae]
  • Palaeogoniatites, A. Hyatt 1900 [Teicherticeratidae]
  • Paraceratites, A. Hyatt 1900 [Ceratitidae]
  • Paractinoceras (A. Hyatt 1900) [Actinoceratidae]
  • Paralenticeras, A. Hyatt 1900 [Sphenodiscidae]
  • Parapachydiscus, A. Hyatt 1900 [Pachydiscidae]
  • Parapachydiscus gollevillensis (d'Orbigny 1847) [Pachydiscidae]
  • Parapsiloceras, A. Hyatt 1900 [Lytoceratidae]
  • Parapsiloceras calliphyllum, A. Hyatt 1900 [Lytoceratidae]
  • Parastephanites, A. Hyatt 1900 [Stephanitidae]
  • Paratornoceras, A. Hyatt 1900 [Dimeroceratidae]
  • Pedioceratidae, family, A. Hyatt 1900 [Crioceratitidae]
  • Peroniceratidae, family, A. Hyatt 1900 [Peroniceratidae]
  • Peroniceratinae, subfamily (A. Hyatt 1900) [Collignoniceratidae]
  • Phricodoceras, A. Hyatt 1900 [Phricodoceratidae]
  • Physodoceras, A. Hyatt 1900 [Aspidoceratidae]
  • Placenticeratidae, family, A. Hyatt 1900 [Placenticeratidae]
  • Platylenticeras, A. Hyatt 1900 [Polyptychitidae]
  • Pleurolytoceras, A. Hyatt 1900 [Lytoceratidae]
  • Pleuropachydiscus, A. Hyatt 1900 [unclassified genus]
  • Plococeras, A. Hyatt 1900 [Dinaritidae]
  • Poecilomorphidae, family, A. Hyatt 1900 [unclassified family]
  • Projovellania, A. Hyatt 1900 [Jovellaniidae]
  • Protengonoceras, A. Hyatt 1900 [Engonoceratidae]
  • Protetragonites, A. Hyatt 1900 [Protetragonitidae]
  • Protobactrites, A. Hyatt 1900 [Protobactritidae]
  • Protocycloceras, A. Hyatt 1900 [Protocycloceratidae]
  • Protophiceras, A. Hyatt 1900 [Ophiceratidae]
  • Pseudoceltites, A. Hyatt 1900 [Kashmiritidae]
  • Pseudodinarites, A. Hyatt 1900 [Dinaritidae]
  • Pseudohaploceras, A. Hyatt 1900 [Desmoceratidae]
  • Psilotissotia, A. Hyatt 1900 [Pulchelliidae]
  • Rhaetites, A. Hyatt 1900 [Arcestidae]
  • Rizoceratidae, family, A. Hyatt 1900 [unclassified family]
  • Schistophylloceras, A. Hyatt 1900 [Juraphyllitidae]
  • Siemiradzkia, A. Hyatt 1900 [Perisphinctidae]
  • Sigaloceras, A. Hyatt 1900 [Kosmoceratidae]
  • Sphenodiscidae, family, A. Hyatt 1900 [Sphenodiscidae]
  • Streblites, A. Hyatt 1900 [Oppeliidae]
  • Streblites pictus, A. Hyatt 1900 [Oppeliidae]
  • Strenoceras, A. Hyatt 1900 [Parkinsoniidae]
  • Thurmannia, A. Hyatt 1900 [Neocomitidae]
  • Tissotiidae, family, A. Hyatt 1900 [Tissotiidae]
  • Tonoceras, A. Hyatt 1900 [Ancyloceratidae]
  • Torneutoceras, A. Hyatt 1900 [Hamitidae]
  • Tragophylloceras, A. Hyatt 1900 [Juraphyllitidae]
  • Ussurites, A. Hyatt 1900 [Ussuritidae]
  • Wyomingites, A. Hyatt 1900 [Dieneroceratidae]
  • Zurcheridae, family, A. Hyatt 1900 [Hammatoceratidae]