THE PREHISTORIC A–Z
Explore the letter B
A research index of dinosaur genus names, including names whose status has changed.
1,888 names catalogued from Wikipedia’s genus list on 11 October 2026. Inclusion does not establish that a name is a valid dinosaur genus. Historical or disputed names are marked for review. Names without a field note link go to the source overview.
- Baalsaurus ↗Source index entry
- Bactrosaurus ↗Source index entry
- Bagaceratops ↗Source index entry
- Bagaraatan ↗Source index entry
- Bagualia ↗Source index entry
- Bagualosaurus ↗Source index entry
- Bahariasaurus ↗Source index entry
- Bainoceratops ↗Source index entry
- Baiyinosaurus ↗Source index entry
- Bajadasaurus ↗Source index entry
- Bakesaurus ↗Historical / disputed: review source
- Balaurdinosaur · Cretaceous
- Balochisaurus ↗Historical / disputed: review source
- Bambiraptordinosaur · Cretaceous
- Banji ↗Source index entry
- Bannykus ↗Source index entry
- Baotianmansaurus ↗Source index entry
- Barapasaurus ↗Source index entry
- Barilium ↗Source index entry
- Barosaurusdinosaur · Jurassic
- Barrosasaurus ↗Source index entry
- Barsboldia ↗Source index entry
- Baryonyxdinosaur · Cretaceous
- Bashanosaurus ↗Source index entry
- Bashunosaurus ↗Source index entry
- Basutodon ↗Historical / disputed: review source
- Bathygnathus ↗Source index entry
- Batyrosaurus ↗Source index entry
- Baurutitan ↗Source index entry
- Bayannurosaurus ↗Source index entry
- Bayosaurus ↗Historical / disputed: review source
- Becklespinax ↗Historical / disputed: review source
- Beelemodon ↗Historical / disputed: review source
- Beg ↗Source index entry
- Beibeilong ↗Source index entry
- Beipiaognathus ↗Source index entry
- Beipiaosaurusdinosaur · Cretaceous
- Beishanlong ↗Source index entry
- Bellusaurus ↗Source index entry
- Belodon ↗Historical / disputed: review source
- Berberosaurus ↗Source index entry
- Berthasaura ↗Source index entry
- Betasuchus ↗Source index entry
- Bicentenaria ↗Source index entry
- Bicharracosaurus ↗Source index entry
- Bienosaurus ↗Source index entry
- Bihariosaurus ↗Historical / disputed: review source
- Bilbeyhallorum ↗Historical / disputed: review source
- Biscoveosaurus ↗Historical / disputed: review source
- Bissektipelta ↗Source index entry
- Bistahieversor ↗Source index entry
- Bisticeratops ↗Source index entry
- Blasisaurus ↗Source index entry
- Blikanasaurus ↗Source index entry
- Bolong ↗Source index entry
- Bonapartenykus ↗Source index entry
- Bonapartesaurus ↗Source index entry
- Bonatitan ↗Source index entry
- Bonitasaura ↗Source index entry
- Borealopelta ↗Source index entry
- Borealosaurus ↗Source index entry
- Boreonykus ↗Source index entry
- Borogovia ↗Source index entry
- Bothriospondylus ↗Source index entry
- Brachiosaurusdinosaur · Jurassic
- Brachyceratops ↗Source index entry
- Brachylophosaurus ↗Source index entry
- Brachypodosaurus ↗Source index entry
- Brachyrophus ↗Historical / disputed: review source
- Brachytaenius ↗Historical / disputed: review source
- Brachytrachelopan ↗Source index entry
- Bradycneme ↗Source index entry
- Brasileosaurus ↗Historical / disputed: review source
- Brasilotitan ↗Source index entry
- Bravasaurus ↗Source index entry
- Bravoceratops ↗Source index entry
- Breviceratops ↗Source index entry
- Brighstoneus ↗Source index entry
- Brohisaurus ↗Source index entry
- Brontomerus ↗Source index entry
- Brontoraptor ↗Historical / disputed: review source
- Brontosaurusdinosaur · Jurassic
- Brontotholus ↗Source index entry
- Bruhathkayosaurus ↗Source index entry
- Bugenasaura ↗Historical / disputed: review source
- Buitreraptordinosaur · Cretaceous
- Burianosaurus ↗Source index entry
- Buriolestes ↗Source index entry
- Bustingorrytitan ↗Source index entry
- Byranjaffia ↗Historical / disputed: review source
- Byronosaurusdinosaur · Cretaceous