Bythocythere
(tree size 40)
Jonesia
(tree size 11)
Sclerochilus
(tree size 44)
Miracythere
(tree size 3)
Bythoceratina
(tree size 38)
Pseudocythere
(tree size 29)
Bathynocythere
(tree size 1)
Bubuloceratina
(tree size 4)
Antarcticythere
(tree size 3)
Monoceratina
(tree size 25)
Australobythere
(tree size 1)
Otocytherella
(tree size 3)
Hanaiceratina
(tree size 2)
Dopseucythere
(tree size 3)
Vitjasiella
(tree size 3)
Bythocytheropteron
(tree size 1)
Bisoceratina
(tree size 3)
Dentibythere
(tree size 3)
Retibythere
(tree size 3)
Convexochilus
(tree size 2)
Parabythocythere
(tree size 8)
Rostrocythere
(tree size 1)
Abyssobythere
(tree size 2)
Phlyctobythocythere
(tree size 1)
Baltraella
(tree size 3)
Ruggieriella
(tree size 2)
Rhombobythere
(tree size 1)
Nealocythere
(tree size 3)
Profundobythere
(tree size 3)
Nodobythere
(tree size 2)
Systenobythere
(tree size 1)
Tanycythere
(tree size 6)
Paraberounella
(tree size 1)
Keijicytherinae
(tree size 1)
Acvocaria
Berounella
Crassacythere
Cretaceratina
(tree size 2)
Cuneoceratina
Eomonoceratina
Mayburya
(tree size 1)
Nasoceratina
Patellacythere
(tree size 3)
Praebythoceratina
Protojonesia
Pseudomonoceratina
(tree size 1)
Punctoceratina
Saxellacythere
Stillina
(tree size 1)
Taxodiella
Triassocythere
Triceratina
Triebacythere
Tuberoceratina
(tree size 1)
Vallumoceratina
Veeniceratina
(tree size 1)
Striatojonesia
Spinoalacia
Nipponojonesia
Antebythoceratina
Nemoceratina
Oculoceratina
(tree size 2)
Ventrobythere
Velibythere
Vandenboldina
(tree size 1)
Tenericythere
Strumibythere
Siliquicythere
Sagittibythere
Rectospinacia
Pteropseudocythere
Pseudojonesia
Paraantella
Obibythere
Montocythere
Gibbobythere
Antella
Asperobythere
Macrocythere
(tree size 1)
Leviantella
Kristanella
Kozurocythere
Kitabythere
Hodzhella
Dentoceratina
Bythonavicula
Calcarellites
Corniferacia
Costoalacia
Costoantella
Costobythere
Bythoceratininae
(tree size 1)
Bythocytherinae
(tree size 1)