L

Labocania Molnar, 1974
    type species: L. anomala Molnar, 1974
Labrosaurus Marsh, 1879=Allosaurus
   type species: L. lucaris (Marsh, 1878 (originally Allosaurus))=A. sp.
    other species: "L. huene" (N.N.) Huene, 1956 vide Madsen and Welles, 2000=?Szechuanosaurus campi
                          L. ferox (N.D.) Marsh, 1884=Allosaurus ?fragilis  
                          " L." stechowi (N.D.) Janensch, 1920>Ceratosauria incertae sedis 
                          "L." sulcatus (N.D.) Marsh, 1896>Ceratosauria incertae sedis                                                     
Laelaps Cope, 1866/Koch, 1839=Dryptosaurus
   "type species": "L." aquilunguis Cope, 1866=Dryptosaurus aquilunguis
   other species: "L." falculus (N.D.) Cope, 1876=?Gorgosaurus libratus
                         "L." gallicus Cope, 1867=Streptospondylus altdorfensis
                         "L." hazenianus (N.D.) Cope, 1876=?Gorgosaurus libratus
                         "L." incrassatus (N.D.) Cope, 1876=?Gorgosaurus libratus                         
                         "L." macropus (N.D.) Cope, 1868="Coelosaurus" antiquus
                         "L." trihedrodon (N.D.) Cope, 1877=?Allosaurus fragilis
                         "L." cristatus (N.D.) Cope, 1876>Dromaeosauridae incertae sedis
                         "L." explanatus (N.D.) Cope, 1876>Eumaniraptora incertae sedis          
                         "L." laevifrons (N.D.) Cope, 1876>Eumaniraptora incertae sedis               
Laevisuchus Huene and Matley, 1933
    type species: L. indicus Huene and Matley, 1933
Lagerpeton Romer, 1971
    type species: L. chanarensis Romer, 1971
Lagosuchus (N.D.) Romer, 1971
    type species: L. talampayensis (N.D.) Romer, 1971
    other species: L. lilloensis Romer, 1971=Marasuchus lilloensis
Lamaceratops Aliafanov, 2003
    type species: L. tereschenkoi Aliafanov, 2003
Lambeosaurus Parks, 1923
    type species: L. lambei Parks, 1923
    other species: ?L. laticaudus Morris, 1981
                          L. magnicristatus Sternberg, 1935
                          L. clavinitialis Sternbergi, 1935=L. lambei
                          L. paucidens (N.D.) (Marsh, 1889 (originally Hadrosaurus))="H." paucidens
Lametasaurus (N.D.) Matley, 1921
    type species: L. indicus (N.D.) Matley, 1921
Lamplughsaura Kutty, Chatterjee, Galton, and Upchurch, 2007
    type species: L. dharmaramensis Kutty et al., 2007
Lanasaurus Gow, 1975=Lycorhinus
    type species: L. scalpridens Gow, 1975=Lycorhinus angustidens
"Lancangosaurus" (N.N.) Dong, Zhou, and Zhang, 1983=Datousaurus
"Lancanjiangosaurus" (N.N.) Zhao, 1986
    "type species": "L. cahuensis" (N.N.) Zhao, 1986
Lanzhousaurus You, H., Q. Ji, and D. Li, 2005
    type species: L. magnidens You et al., 2005
Laosaurus (N.D.) Marsh, 1878
    type species: L. celer (N.D.) Marsh, 1878
    other species: L. altus Marsh, 1878=Dryosaurus altus
                         L. consors Marsh, 1894=Othnielosaurus consors
                         L. gracilis Marsh, 1878=Othnielosaurus consors
                         "L." minimus (N.D.) Gilmore, 1924>Ornithopoda incertae sedis
Laplatasaurus Huene, 1929
    type species: L. araukanicus Huene, 1929
Lapparentosaurus Bonaparte, 1986
    type species: L. madagascariensis Bonaparte, 1986
Leaellynasaura Rich and Rich, 1989
    type species: L. amicagraphica Rich and Rich, 1989
Leipsanosaurus (N.D.) Nopcsa, 1918=Struthiosaurus
    type species: L. noricus (N.D.) Nopcsa, 1918=Struthiosaurus austriacus
Leptoceratops Brown, 1914
    type species: L. gracilis Brown, 1914
    other species: L. cerorhynchus Brown and Schlaikjer, 1942=Montanoceratops cerorhynchus
Leptospondylus (N.D.) Owen, 1854
   type species: L. capensis (N.D.) Owen, 1854
Lesothosaurus Galton, 1978
    type species: L. diagnosticus Galton, 1978
Lessemsaurus Bonaparte, 1999
    type species: L. sauropoides Bonaparte, 1999
Lexovisaurus Hoffstetter, 1957
    type species: L. durobrivensis (Hulke, 1887 (originally Omosaurus))
    other species: L. vetustus (N.D.) (Huene, 1910 (originally Omosaurus))="O." vetustus
Lewisuchus Romer, 1972
    type species: L. admixtus Romer, 1972
Liaoceratops Xu, Makovicky, Wang, Norell, and You, 2002
    type species: L. yanzigouensis Xu et al., 2002
Liaoningosaurus Xu, Wang, and You, 2001
    type species: L. paradoxus Xu et al., 2001
"Liassaurus" (N.N.) Welles, Powell, and Pickering vide Pickering, 1995
    "type species": "L. huenei" (N.N.) Welles, Powell, and Pickering vide Pickering, 1995
Ligabueino Bonaparte, 1995
    type species: L. andesi Bonaparte, 1995
Ligabuesaurus Bonaparte, González Riga, and Apesteguía, 2006
    type species: L. leanzai Bonaparte et al., 2006
Liliensternus Welles, 1984
    type species: L. liliensterni (Huene, 1934 (originally Halticosaurus))
    other species: ?L. airelensis Cuny and Galton, 1993
                         L. orbitoangulatus (Huene, 1932 (originally Halticosaurus))=sphenosuchian crocodylomorph
Limaysaurus Salgado, Garrido, S.E. Cocca, and J.R. Cocca, 2004
   type species: L. tessonei (Calvo and Salgado, 1991 (originally Rebbachisaurus)
Limnosaurus Nopcsa, 1900/Marsh, 1872=Telmatosaurus
   "type species": L. transsylvanicus Nopcsa, 1900=Telmatosaurus transsylvanicus
Lirainosaurus Sanz, Powell, Le Loeuff, Martinez, and Pereda-Suberbiola, 1999
    type species: L. astibiae Sanz et al., 1999
Loncosaurus (N.D.) Ameghino, 1898
    type species: L. argentinus (N.D.) Ameghino, 1898
Longosaurus (N.D.) Welles, 1984
   type species: L. longicollis (N.D.) Welles, 1984
    other species: L. longotarsus=Halticosaurus longotarsus
Lophorhothon Langston, 1960
    type species: L. atopus Langston, 1960
Lophostropheus Ezcurra and Cuny, 2007
    type species: L. airelensis (Cuny and Galton, 1993 (originally Liliensternus)
Loricosaurus (N.D.) Huene, 1929
    type species: L. scutatus (N.D.) Huene, 1929
Losillasaurus Casanovas, Santafe, and Sanz, 2001
    type species: L. giganteus Casanovas et al., 2001
Lourinhanosaurus Mateus, 1998
    type species: L. antunesi Mateus, 1998
Lourinhasaurus Dantas, Sanz, Silva, Ortega, Dos Santos, and Cachao,1998
    type species: L. alenquerensis (Lapparent and Zybszewski, 1957 (originally Apatosaurus))
Luanchuanraptor Lü J., Xu L., Zhang X., Ji Q., Jia S., Hu W., Zhang J., and Wu Y., 2007
    type species: L. henanensis Lü J. et al., 2007
"Luanpingosaurus" (N.N.) Cheng vide Chen, 1996
    "type species": "L. jingshanensis" (N.N.) Cheng vide Chen, 1996
Lufengocephalus Yang, 1974=Lufengosaurus
   type species: L. tawae Yang, 1974=Lufengosaurus huenei
Lufengosaurus Yang, 1941
    type species: L. huenei Yang, 1941
    other species: "L. changduensis" (N.N.) Zhao, 1986
                          L. magnus Yang, 1947=L. huenei
Lukousaurus (?N.D.) Yang, 1948
    type species: L. yini (?N.D.) Yang, 1948
Lurdusaurus Taquet and Russell, 1999
    type species: L. arenatus Taquet and Russell, 1999
Lusotitan Antunes and Mateus, 2003
    type species: L. atalaiensis (Lapparent and Zybszewski, 1957 (originally Brachiosaurus))
Lusitanosaurus (N.D.) Lapparent and Zybszewski, 1957
    type species: L. liasicus (N.D.) Lapparent and Zybszewski, 1957
Lycorhinus Haughton, 1924
    type species: L. angustidens Haughton, 1924
    other species: L. consors Thulborn, 1974=Abrictosaurus consors