B

Bactrosaurus Gilmore, 1933
    type species: B. johnsoni Gilmore, 1933
    other species: B. prynadai (N.D.) Riabinin, 1939=?B. johnsoni
                          B. kyzylkumensis (N.D.) (Riabinin, 1931 (originally Cionodon))="Cionodon" kysylkumensis
Bagaceratops Osmólska and Maryanska, 1975
    type species: B. rozhdestvenskyi Osmólska and Maryanska, 1975
Bagaraatan Osmólska, 1996
    type species: B. ostromi Osmólska, 1996
Bahariasaurus (?N.D.) Stromer, 1934
    type species: B. ingens (?N.D.) Stromer, 1934
Bainoceratops Tereschenko and Alifanov, 2003
    type species: B. efremovi Tereschenko and Alifanov, 2003
"Bakesaurus" (N.N.) Zhou S., 2005=museum name for Chinese ?LK ?hadrosaurian iguanodontian
Balochisaurus Malkani, 2006
    type species: B. malkani Malkani, 2006 
Bambiraptor Burnham, Derstler, Currie, Bakker, Zhou, and Ostrom, 2000
    type species: B. feinbergorum Burnham et al., 2000
Barapasaurus Jain, Kutty, Roy-Chowdhury, and Chatterjee, 1975
    type species: B. tagorei Jain et al., 1975
Barosaurus Marsh, 1890
    type species: B. lentus Marsh, 1890
    other species: B. africanus (Fraas, 1908 (originally Gigantosaurus))=Tornieria africana
                         B. gracilis Janensch, 1961=Tornieria africana
                         B. affinis Marsh, 1899=B. lentus
Barsboldia Maryanska and Osmólska, 1981
   type species: B. sicinskii Maryanska and Osmólska, 1981
Baryonyx Charig and Milner, 1986
    type species: B. walkeri Charig and Milner, 1986
    other species: ?B. tenerensis (Sereno, Beck, Dutheil, Gado, Larsson, Lyon, Marcot, Rauhut, Sadleir, Sider, Varricchio, G.Wilson, and J.Wilson, 1998 (originally Suchomimus))
"Bashunosaurus" (N.N.) Kuang, 1996 vide Li, Zhang, and Cai, 1999
    "type species": "B. kaijangensis" (N.N.) Kuang, 1996 vide Li et al., 1999
Baurutitan Kellner, Campos, and Trotta, 2005
    type species: B. britoi Kellner et al., 2005
Becklespinax Olshevsky, 1991
    type species: B. altispinax (Paul, 1988 (originally Acrocanthosaurus))
"Beelemodon" (N.N.) Bakker, 1997
Beipiaosaurus Xu, Tang, and Wang, 1999
    type species: B. inexpectatus Xu, Tang, and Wang, 1999
Bellusaurus Dong, 1990
    type species: B. sui Dong, 1990
Berberosaurus Allain, Tykowski, Aquesbi, Jalil, Monbaron, D. Russell, and Taquet, 2007
    type species; B. liassicus Allain et al., 2007 
Betasuchus (N.D.) Huene, 1932="Megalosaurus"
    type species: B. bredai (N.D.) (Seeley, 1883 (originally Megalosaurus))="M." bredai
Bienosaurus Dong, 2001
    type species: B. lufengensis Dong, 2001 
Bihariosaurus Marinescu, 1989
    type species: B. bauxiticus Marinescu, 1989
"Bilbeyhallorum" (N.N.) Burge, Bird, McClelland, and Cicconetti, 1999=Cedarpelta
"Bison" alticornis (N.D.) Marsh, 1887>Ceratopinae incertae sedis
Bissektipelta Parish, Jolyon, and Barrett, 2004
    type species: B. archibaldi (Averianov, 2002 (originally Amtosaurus)) 
Blikanasaurus Galton and Heerden, 1985
    type species: B. cromptoni Galton and van Heerden, 1985
Bonatitan Martinelli and Forasiepi, 2004
    type species: B. reigi Martinelli and Forasiepi, 2004
Bonitasaura Apesteguía, 2004
    type species: B. salgadoi Apesteguía, 2004
Borealosaurus You, Ji, Lamanna, Li J., and Li Y., 2004
    type species: B. wimani You et al., 2004
Borogovia Osmólska, 1987
    type species: B. gracilicrus Osmólska, 1987
Bothriospondylus (N.D.) Owen, 1875
    type species: B. suffossus (N.D.) Owen, 1875
    other species: B. madagascariensis Lydekker, 1895=Lapparentosaurus madagascariensis
                                (Madagascar), ?B. suffossus (French)
                         B. magnus (N.D.) Owen, 1875=Ornithopsis hulkei
                         B. robustus (N.D.) (Owen, 1875 (originally Marmarospondylus))=Marmarospondylus robustus
                         "B." elongatus (N.D.) Owen, 1875>Sauropoda incertae sedis
Brachiosaurus Riggs, 1903
    type species: B. altithorax Riggs, 1903
    other species: B. atalaiensis Lapparent and Zybszewski, 1957=Lusotitan atalaiensis
                         B. brancai Janensch, 1914=Giraffatitan brancai
                         B. fraasi Janensch, 1914=Giraffatitan brancai                        
                         B. macintoshi (Jensen, 1985 (originally Ultrasaurus))=B. altithorax, Supersaurus vivianae
                         "B." nougaredi (N.D.) Lapparent, 1960>Sauropoda incertae sedis
Brachyceratops (?N.D.) Gilmore, 1914
    type species: B. montanensis (?N.D.) Gilmore, 1914
    other species: B. dawsoni (Lambe, 1902 (originally Monoclonius))=Centrosaurus apertus
                         B. ovatus (Gilmore, 1930 (originally Styracosaurus))=Styracosaurus ovatus
Brachylophosaurus Sternberg, 1953
    type species: B. canadensis Sterberg, 1953
    other species: B. goodwini Horner, 1988=B. canadensis
Brachypodosaurus (N.D.) Chakravarti, 1934
    type species: B. gravis (N.D.) Chakravarti, 1934
Brachyrophus (N.D.) Cope, 1878
    type species: B. altarkansanus (N.D.) Cope, 1878
Brachytrachelopan Rauhut, Remes, Fechner, Cladera, and Puerta, 2005
    type species: B. mesai Rauhut et al., 2005
Bradycneme (N.D.) Harrison and Walker, 1975
   type species: B. draculae (N.D.) Harrison and Walker, 1975
Breviceratops Kurzanov, 1990=Bagaceratops
    type species: B. kozlowskii (Maryanska and Osmólska, 1975 (originally Protoceratops))=Bagaceratops rozhdestvenskyi
Brohisaurus Malkani, 2003
    type species: B. kirthari Malkani, 2003 
"Brontoraptor" (N.N.) Redman, 1995
Brontosaurus Marsh, 1879=Apatosaurus
   type species: B. excelsus Marsh, 1879=Apatosaurus excelsus
   other species: B. ajax (Marsh, 1877 (originally Apatosaurus))=Apatosaurus ajax
                        B. alenquerensis (Lapparent and Zybszewski, 1957 (originally Apatosaurus))=Lourinhasaurus alenquerensis
                        B. amplus Marsh, 1881=Apatosaurus excelsus
                        B. louisae (Holland, 1915 (originally Apatosaurus))=Apatosaurus louisae
                        B. montanus (Marsh, 1877 (originally Titanosaurus))="T." montanus
Bruhathkayosaurus (N.D.) Yadagiri and Ayyasami, 1989
    type species: B. matleyi (N.D.) Yadagiri and Ayyasami, 1989
Bugenasaura Galton, 1995
    type species: B. infernalis Galton, 1995
    other species: ?B. garbanii (Morris, 1976 (originally Thescelosaurus))
Buitreraptor Makovicky, Apesteguía, and Agnolín, 2005
    type species: B. gonzalezorum Makovicky et al., 2005
"Byranjaffia" (N.N.) Novacek, 2002=Byronosaurus
Byronosaurus  Norell, Mackinovicky, and Clark,  2000
    type species: B. jaffei Norell et al., 2000