- †Hacobjania
- †Hadriania
- †Hahazimania
- †Halia
- †Haliotiomorpha
- Haliotis
- †Haliphoebus
- Halistylus
- †Halloysia
- †Hallstadtia
- †Haloginella
- Haminoea
- †Hamlinia
- †Hammatospira
- †Hamptoniella
- †Hamusina
- †Hanaibursa
- †Hanaispira
- †Hanetia
- †Hapalorbis
- †Haplocochlias
- †Haploptyxis
- †Haplospira
- †Haplovoluta
- †Harfordia
- †Harmatia
- †Harmeria
- Harpa
- †Harpago
- †Harpagodes
| - †Harpella
- †Harpula
- †Harrisianella
- †Hartungia
- Hastula
- †Haurakia
- †Haustator
- Haustellum
- †Hautura
- †Hayamiella
- †Haydenia
- †Hebeseila
- †Hebra
- †Heida
- †Heilprinia
- Helcion
- Heliacus
- †Helicacanthus
- †Helicaulax
- †Helicocryptus
- †Helicospira
- †Helicotoma
- †Heligmope
- †Heligmostylus
- †Heligmotenia
- †Heligmotoma
- †Helminthozyga
- †Hemiacirsa
- †Hemicerithium
- †Hemichenopus
| - †Hemiconus
- †Hemifusus
- †Hemipleurotoma
- †Hemiplicatula
- †Hemisurcula
- Hemitoma
- †Hemizyga
- †Heniastoma
- †Hennocquia
- †Hercorhynchus
- †Hermania
- †Herminespina
- Herpetopoma
- Hespererato
- †Hesperiella
- †Hesperiturris
- †Hesperocirrus
- †Heterocerithiopsis
- †Heterocithara
- †Heterogyrella
- †Heteronodosus
- †Heteroptygmatis
- †Heterospira
- †Heterotrema
- †Hexachorda
- †Hexaglauconia
- Hexaplex
- †Hilda
- †Hillites
- †Hima
| - †Himantonia
- †Hinia
- †Hippocampoides
- †Hippochrene
- Hipponix
- †Hiromurex
- †Hirotyphis
- †Hirsonella
- †Hirtoscala
- †Hispanosinuites
- †Hispidofusus
- †Hiwia
- †Hologyra
- †Holopea
- †Holzapfelia
- Homalopoma
- †Hopkinsiana
- †Hordeulima
- †Horiostomella
- †Horizostoma
- †Hormotoma
- †Hormotomina
- †Horologium
- †Houdasia
- †Houzeauia
- †Hudlestonella
- †Humiliworthenia
- †Hungariella
- †Hwaania
- †Hyala
| - Hyalina
- †Hyalocylis
- †Hyalorisia
- †Hyaloscala
- †Hybochelus
- †Hydrotribulus
- †Hyperacanthus
- †Hypergonia
- †Hyphantozyga
- †Hypocassis
- †Hypodema
- †Hypselentoma
- †Hypsipleura
- †Hypterita
- †Hystricoceras
|
