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Ancyloceratoidea
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Deshayesitidae
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Douvilleiceratidae
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Cretacico
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Maastrichtiano
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Berriasiano
Giurassico
Malm
Titonico
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Oxfordiano
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Calloviano
Bathoniano
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Toarciano
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A...Z
Ricerca
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Contatti
Sottordine
Ammonitina
Hyatt 1889
Superfamiglia
Lytoceratoidea
Neumayr 1875
Famiglia
Lytoceratidae
Neumayr 1875
Sottofamiglia
Alocolytoceratinae
Spath 1927
Alocolytoceras
Pliensbachiano - Toarciano
Pachylytoceras
Toarciano
Pleurolytoceras
Toarciano - Bajociano
Sottofamiglia
Lytoceratinae
Neumayr 1875
Hemilytoceras
Oxfordiano - Titonico
Lobolytoceras
Toarciano - Titonico
Lytoceras
Sinemuriano - Cenomaniano
Protetragonites
Berriasiano - Albiano
Ptycholytoceras
Toarciano
Zaghouanites
Pliensbachiano
Sottofamiglia
Megalytoceratinae
Spath 1927
Megalytoceras
Aaleniano - Bajociano
Nannolytoceras
Bajociano - Bathoniano
Perilytoceras
Toarciano
Sottofamiglia
Ectocentritinae
Spath 1926
Adnethiceras
Sinemuriano
Ectocentrites
Hettangiano - Sinemuriano
Galaticeras
Sinemuriano - Pliensbachiano
Holcolytoceras
Pliensbachiano
Peltolytoceras
Sinemuriano
Sottofamiglia
Pleuroacanthinae
Hyatt 1900
Analytoceras
Hettangiano
Eolytoceras
Hettangiano - Sinemuriano
Pleuroacanthites
Hettangiano