B. christinae

B. primus

Aaglacrinus, Aatocrinus, Abrachiocrinus, Abrotocrinus, Acariaiocrinus, Achradocrinus, Acylocrinus, Adinocrinus, Aenigmocrinus, Aethocrinus, Agassizocrinus, Aithriocrinus, Alcimocrinus, Allosycocrinus, Alsopocrinus, Ampheristocrinus, Amphipsalidocrinus, Anarchocrinus, Anartiocrinus, Ancyrocrinus, Anemetocrinus, Antihomocrinus, Arachnocrinus, Araeocrinus, Armenocrinus, Ascetocrinus, Asymmetrocrinus, Atelestocrinus, Atractocrinus, Atrapocrinus, Atremacrinus, Aulocrinus, Aulodesocrinus, Bactrocrinites, Basleocrinus, Bathericrinus, Belanskicrinus, Benthocrinus, Bicidiocrinus, Bolbocrinus, Bollandocrinus, Briseocrinus, Bronaughocrinus, Brychiocrinus, Bursacrinus, Cadocrinus, Caelocrinus, Carabocrinus, Carcinocrinus, Carlopsocrinus, Cathetocrinus, Ceratocrinus, Cercidocrinus, Cestocrinus, Clathrocrinus, Clistocrinus, Codiacrinus, Coenocystis, Contignatindocrinus, Corematocrinus, Corynecrinus, Corythocrinus, Cradeocrinus, Cranocrinus, Cricocrinus, Cromyocrinus, Crotalocrinites, Cryphiocrinus, Culmicrinus, Cydrocrinus, Cyliocrinus, Dasciocrinus, Denariocrinus, Depaocrinus, Derbiocrinus, Dichostreblocrinus, Dictenocrinus, Dinotocrinus, Edapocrinus, Eifelocrinus, Eirmocrinus, Elicrinus, Elpasocrinus, Enallocrinus, Eoparisocrinus, Eopilidiocrinus, Eopinnacrinus, Epipetschoracrinus, Eratocrinus, Esthonocrinus, Ethelocrinus, Euerisocrinus, Eupachycrinus, Euspirocrinus, Exaetocrinus, Exochocrinus, Exoriocrinus, Exterocrinus, Fifeocrinus, Follicrinus, Forthocrinus, Gastrocrinus, Goniocrinus, Gothocrinus, Grenprisia, Hallocrinus, Harmostocrinus, Harrellicrinus (syn. Strimplecrinus), Hemiindocrinus, Hemimollocrinus, Hemistreptacron, Holcocrinus, Hosieocrinus, Hydreionocrinus, Hydriocrinus, Hydroporocrinus, Hylodecrinus, Idaeumocrinus, Idosocrinus, Imitatocrinus, Indocrinus, Intermediacrinus, Jahnocrinus, Kalpidocrinus, Kanabinocrinus, Kansacrinus, Kooptoonocrinus, Kopficrinus, Kophinocrinus, Laccocrinus, Lageniocrinus, Lanecrinus, Lasiocrinus, Laudonocrinus, Lebetocrinus, Lecythocrinus, Lekocrinus, Linobrachiocrinus, Linocrinus, Lobalocrinus, Lopadiocrinus, Lophocrinus, Malaiocrinus, Manicrinus, Mantikosocrinus, Maragnicrinus, Marathonocrinus, Mathericrinus, Menniscocrinus, Merocrinus, Metabolocrinus, Metaffinocrinus, Metasycocrinus, Miatschkovocrinus, Mictocrinus, Moapocrinus, Mollocrinus, Monobrachiocrinus, Mooreocrinus, Moscovicrinus, Myrtillocrinus, Nacocrinus, Nactocrinus, Nanocrinus, Nassoviocrinus, Neocatacrinus, Neolageniocrinus, Neoprotencrinus, Nereocrinus, Notiocrinus, Nuxocrinus, Oligobrachyocrinus, Ontariocrinus, Ophiurocrinus, Ottawacrinus, Oxynocrinus, Pagecrinus, Paianocrinus, Palaeocrinus, Pandoracrinus, Parabotryocrinus, Paracosmetocrinus, Paracydonocrinus, Paradelocrinus, Paragraphiocrinus, Parapernerocrinus, Paraplasocrinus, Parascytalocrinus, Parastachyocrinus, Parastephanocrinus, Parasycocrinus, Paratimorocidaris, Parazeacrinites, Parindocrinus, Parisangulocrinus, Parisocrinus, Pegocrinus, Pelecocrinus, Pellecrinus, Pentaramicrinus, Pentececrinus, Permiocrinus, Pernerocrinus, Petalambicrinus, Petalocrinus, Petschoracrinus, Phanocrinus, Pilidiocrinus, Pirasocrinus, Platyfundocrinus, Plicodendrocrinus, Polycrinus, Polygonocrinus, Porocrinus, Praecupulocrinus, Premanicrinus, Prininocrinus, Proampelocrinus, Probletocrinus, Prochoidiocrinus, Proctothylacocrinus, Proindocrinus, Prolobocrinus, Psilocrinus, Pskovicrinus, Pulaskicrinus, Pumilindocrinus, Pyrenocrinus, Ramulocrinus, Retusocrinus, Rhabdocrinus, Rhadinocrinus, Rhenocrinus, Rhopalocrinus, Rhopocrinus, Rimosidocrinus, Roemerocrinus, Saccosompsis, Sardinocrinus, Sarocrinus, Scammatocrinus, Schedexocrinus, Schistocrinus, Schultzicrinus, Scoliocrinus, Scotiacrinus, Sellardsicrinus, Separocrinus, Sigambrocrinus, Simocrinus, Sinocrinus, Sinopetalocrinus, Sphaerocrinus, Springericrinus, Stachyocrinus, Staphylocrinus, Stinocrinus, Streblocrinus, Streptocrinus, Sublobalocrinus, Sycocrinites, Syndetocrinus, Tarachiocrinus, Telikosocrinus, Tenagocrinus, Terpnocrinus, Tetrabrachiocrinus, Tetrapleurocrinus, Thalamocrinus, Thenarocrinus, Thetidicrinus, Tholocrinus, Thyridocrinus, Timorechinus, Treocrinus, Triboloporus, Trimerocrinus, Tyrieocrinus, Ulrichicrinus, Ureocrinus, Vadarocrinus, Vasocrinus, Wetherbyocrinus, Woodocrinus, Worthenocrinus, Yakovlevicrinus, Zeacrinites, Zeusocrinus, Zostocrinus, Zygotocrinus