the Ammonite Directory

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Abbasites

Erycitidae
Toarciano - Aaleniano

Abbasitoides

Erycitidae
Toarciano - Aaleniano

Acanthoceras

Acanthoceratinae
Cenomaniano

Acanthohoplites

Acanthohoplites

Acanthohoplitinae
Aptiano - Albiano

Acanthopleuroceras

Acanthopleuroceras

Acanthopleuroceratinae
Pliensbachiano

Accardia

Erycitidae
Toarciano - Bajociano

Acompsoceras

Acanthoceratinae
Cenomaniano

Aconeceras

Aconeceratidae
Barremiano - Albiano

Acrioceras

Helicancyclinae
Hauteriviano - Aptiano

Adkinsia

Flickiinae
Cenomaniano

Adnethiceras

Ectocentritinae
Sinemuriano

Aegasteroceras

Asteroceratinae
Sinemuriano

Aegoceras

Liparoceratidae
Pliensbachiano

Aegocrioceras

Aegocrioceratidae
Hauteriviano

Agassiceras

Arietitinae
Sinemuriano

Aioloceras

Cleoniceratidae
Albiano

Alligaticeras

Perisphinctinae
Calloviano - Oxfordiano

Alocolytoceras

Alocolytoceratinae
Pliensbachiano - Toarciano

Alsatites

Alsatitinae
Hettangiano - Sinemuriano

Amaltheus

Amaltheidae
Pliensbachiano

Amauroceras

Amaltheidae
Pliensbachiano

Amoeboceras

Cardioceratinae
Oxfordiano - Kimmeridgiano

Amorina

Hamulinidae
Barremiano

Anagaudryceras

Gaudryceratinae
Aptiano - Albiano

Anahamulina

Hamulinidae
Hauteriviano - Barremiano

Anahoplites

Anahoplitinae
Albiano

Analytoceras

Pleuroacanthinae
Hettangiano

Ancolioceras

Leioceratinae
Aaleniano

Ancyloceras

Ancyloceratinae
Campaniano - Maastrichtiano

Andiceras

Berriasellinae
Titonico - Berriasiano

Androgynoceras

Liparoceratidae
Pliensbachiano

Angulaticeras

Schlotheimiidae
Hettangiano - Sinemuriano

Anisoceras

Anisoceratidae
Albiano - Turoniano

Apoderoceras

Eoderoceratidae
Pliensbachiano

Arcticoceras

Arctocephalitinae
Bathoniano

Argonauticeras

Tetragonitinae
Aptiano - Albiano

Arieticeras

Arieticeratinae
Pliensbachiano

Arietites

Arietitinae
Sinemuriano

Arnioceras

Arnioceratinae
Sinemuriano

Asphinctites (Asphinctites)

Morphoceratidae
Bajociano

Aspidoceras

Aspidoceratinae
Oxfordiano - Berriasiano

Asteroceras

Asteroceratinae
Sinemuriano

Astieridiscus

Holcodiscidae
Barremiano

Ataxioceras

Ataxioceratinae
Kimmeridgiano

Ataxioceras (Parataxioceras)

Ataxioceratinae
Kimmeridgiano

Ataxioceras (Schneidia)

Ataxioceratinae
Kimmeridgiano

Aulacostephanus

Aulacostephanus

Aulacostephanidae
Kimmeridgiano

Australiceras

Ancyloceratinae
Aptiano

Avramidiscus

Holcodiscidae
Barremiano

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