Au Audaxlytoceras Augurites Aulacosphinctes Aulacosphinctoides Aulacostephanus Aulasimoceras Aulatornoceras Austiniceras Australiceras Austroceratites AustrotrachycerasKrystyn, L. 1978. Schriftenreihe erdwiss. Komm. ost. Akad. Wiss. 4: 68. Nomenclator Zoologicus record
Av Aveyroniceras Ax Axinolobus Axonoceras
B Ba Bacchites Bactrites Baculina Baculites Badiotites Bagnolites Balatonites Balearites Balkanites Balticeras Balvia Bamyaniceras Baronnites Barrandeites Barremites Barroisiceras Baschkirites Bashkortoceras Baskaniiceras Basleoceras Bauchioceras Bayleites
Be Beaniceras Beatites Beleutoceras Beloceras Benacoceras Beneckeia Benueites Berbericeras Berniceras Berriasella Berrosiceras Betyokites Beudanticeras Beudantiella Bevahites Beyrichites Beyrichoceras Beyrichoceratoides
Bh Bhimaites
Bi Bifericeras Bigotites Bihenduloceras Bilinguites Billcobbanoceras Biloclymenia Biltnerites Binatisphinctes Binneyites Biplices Bisatoceras
Bl Blanforidceras
Bo Bochianites Bodylevskites Boehmoceras Boesites Bogdanoceras Bollandites Bollandoceras Boreomeekoceras Borissiakoceras Borkinia Bornhardticeras Bosnites Bostrychoceras Bostrychoceras Boucaulticeras Bouleiceras