Crocodiles, alligators

• 
  †Fasolasuchus
  
• 
  †Fenhosuchus
  
• 
  †Ferganosuchus
  
• 
  †Francosuchus — junior synonym of Paleorhinus
  
• 
  †Fruitachampsa
  

• 
  †Galtonia — probable junior synonym of Revueltosaurus
  
• 
  †Gasparinisuchus
  
• 
  †Gavialinum
  

A Gavial from India.

• 
  Gavialis
  
• 
  †Gavialosuchus
  
• 
  †Geosaurus
  
• 
  †Gilchristosuchus
  
• 
  †Glaphyrorhynchus — junior synonym of Steneosaurus
  
• 
  †Gobiosuchus
  
• 
  †Goniopholis
  
• 
  †Gracilineustes
  
• 
  †Gracilisuchus
  
• 
  †Gryposuchus
  
• 
  †Guarinisuchus
  

• 
  †Hadongsuchus
  
• 
  †Haematosaurus
  
• 
  Halcrosia — junior synonym of Osteolaemus
  
• 
  †Halilimnosaurus — junior synonym of Geosaurus
  
• 
  †Hallopus
  
• 
  †"Halticosaurus"
  
• 
  †Hamadasuchus
  
• 
  †Harpacochampsa
  
• 
  †Hassiacosuchus
  
• 
  †Heliocanthus — possible junior synonym of Rioarribasuchus
  
• 
  †Helmstedtisuchus — actually a teleost fish
  
• 
  †Hemiprotosuchus
  
• 
  †Heptasuchus
  
• 
  †Hesperogavialis
  

An artist's reconstruction of Hesperosuchus .

• 
  †Hesperosuchus
  
• 
  †Heterodontosuchus
  
• 
  †Heterosuchus
  
• 
  †Hispanochampsa
  
• 
  †Holops — preoccupied by a brachyceran fly, renamed Holopsisuchus
  
• 
  †Holopsisuchus — junior synonym of Thoracosaurus
  
• 
  †"Hoplitosaurus" — preoccupied by the ankylosaurian dinosaur Hoplitosaurus; now known as Hoplitosuchus
  
• 
  †Hoplitosuchus
  
• 
  †Hoplosuchus
  
• 
  †Hsisosuchus
  
• 
  †Hylaeochampsa
  
• 
  †Hyposaurus
  
• 
  †Hypselorhachis
  

• 
  †Iberosuchus
  
• 
  †Ichthyosuchus — junior synonym of Crocodylus
  
• 
  †Iharkutosuchus
  
• 
  †Ikanogavialis
  
• 
  †Ilchunaia
  
• 
  †Ischyrochampsa
  
• 
  †Isisfordia
  
• 
  †Isselosaurus — referred to both Iberosuchus and Tomistoma
  
• 
  †Itasuchus
  

An artist's reconstruction of Itasuchus.

• 
  Jacare — junior synonym of Caiman
  
• 
  Jacaretinga — referred to both Caiman and Paleosuchus
  
• 
  †Jaikosuchus
  
• 
  †Junggarsuchus
  
• 
  †Jushatyria
  

• 
  †Kambara
  
• 
  †Kansajsuchus
  
• 
  †Kaprosuchus
  
• 
  †Karamuru
  
• 
  †Karatausuchus
  
• 
  †Kayentasuchus
  
• 
  †Kemkemia
  
• 
  †Kentisuchus
  
• 
  †Khoratosuchus
  
• 
  †Kladeisteriondon — junior synonym of Teratosaurus
  
• 
  †Krabisuchus
  
• 
  †Kyasuchus
  

• 
  †Labidiosuchus
  
• 
  †Laganosuchus
  
• 
  †Langstonia^[2]
  
• 
  †Leidyosuchus
  
• 
  †Leiokarinosuchus
  
• 
  †Leptocranius — junior synonym of Steneosaurus
  
• 
  †Leptorrhamphus
  
• 
  †Leptosuchus
  
• 
  †Lesothosuchus — junior synonym of Protosuchus
  
• 
  †Lianghusuchus
  
• 
  †Libycosuchus
  
• 
  †Limnosaurus — junior synonym of Pristichampsus
  
• 
  †Lisboasaurus
  
• 
  †Listrognathosuchus
  
• 
  †Litargosuchus
  
• 
  †Ltliminosaurus — junior synonym of Geosaurus
  
• 
  †Lomasuchus
  
• 
  †Longosuchus
  
• 
  †Lorosuchus
  
• 
  †Lotosaurus
  

An artist's reconstruction of Lotosaurus.

• 
  †Lucasuchus
  
• 
  †Luperosuchus
  
• 
  †Lusitanisuchus
  
• 
  †Lythrosaurus — lapsus calami of Lythrosuchus
  
• 
  †Lythrosuchus — junior synonym of Poposaurus
  

• 
  †Macelognathus
  
• 
  †Machaeroprosopus
  
• 
  †Machimosaurus
  
• 
  †Macrospondylus — junior synonym of Steneosaurus
  
• 
  †Macrorhynchus — junior synonym of Pholidosaurus
  
• 
  †Mahajangasuchus
  
• 
  †Malawisuchus
  
• 
  †"Mandasuchus" — nomen nudum, probable synonym of Ticinosuchus
  
• 
  †Manracosuchus — probable junior synonym of Allognathosuchus
  
• 
  †Mariliasuchus
  
• 
  †Marmosaurus
  
• 
  †Maroccosuchus
  
• 
  †Massaliasuchus
  
• 
  Mecistops
  
• 
  †Megadontosuchus
  
• 
  †"Megalosaurus"
  
• 
  †Mekosuchus
  
• 
  Melanosuchus
  

A Black caiman (Melanosuchus).

• 
  †Melitosaurus — junior synonym of Tomistoma
  
• 
  †Menatalligator
  
• 
  †Meridiosaurus
  
• 
  †Mesorhinosuchus — junior synonym of Paleorhinus
  
• 
  †Mesorhinus — junior synonym of Paleorhinus
  
• 
  †Metiorychus — lapsus calami of Metriorhynchus
  
• 
  †Metriorhynchus
  
• 
  †Metriorrhynchus — lapsus calami of Metriorhynchus
  
• 
  †Miadanasuchus
  
• 
  †Microchampsa
  
• 
  †Microsaurus — lapsus calami of Microsuchus
  
• 
  †Microsuchus
  
• 
  Molinia — junior synonym of Crocodylus
  
• 
  †Montealtosuchus
  
• 
  †Montsecosuchus
  
• 
  †Morrinhosuchus
  
• 
  †Mosellaesaurus — junior synonym of Pelagosaurus
  
• 
  †Motinia — junior synonym of Crocodylus
  
• 
  †Mourasuchus
  
• 
  †Musturzabalsuchus
  
• 
  †Mycterosuchus — junior synonym of Steneosaurus
  
• 
  †Mystriosaurus — junior synonym of Steneosaurus
  
• 
  †Mystriosuchus