Original description species: Johns, Barnes, & Orchard, 1997
Genus: Labrilancea Johns, 1997
Subclass: Elasmobranchii

Original description species: Heer, 1877
Genus: Laffonia Heer, 1877
Subclass: Holocephali

Synonyms: Psammodus angustus
Original description species: (Romanovsky, 1864)
Genus: Lagarodus Jaekel, 1898
Family: Lagarodontidae Lebedev, 2008
Order: incert. sedis
Subclass: Elasmobranchii

Synonyms: Psammodus specularis
Original description species: (Trautschold, 1874)
Genus: Lagarodus Jaekel, 1898
Family: Lagarodontidae Lebedev, 2008
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Ivanov, 2020
Genus: Lamarodus Ivanov, 2020
Family: incert. fam.
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Lamiopsis Gill, 1862
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman, 1964
Genus: Lamiostoma Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman & Zhelezko in Zhelezko & Kozlov, 1999
Genus: Lamiostoma Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Odontaspis attenuata
Original description species: Davis, 1888
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Davis, 1888
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Lioy, 1865
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna daviesi
Original description species: Etheridge, 1888
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna cf. ditropis-f
Original description species: Hubbs & Follett, 1947
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Davis, 1888
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Davis, 1888
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna cf. nasus-f, Lamna cornubica-f, Lamna whitely-f, Squalus cornubicus-f
Original description species: (Bonnaterre, 1788)
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1899
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cragin, 1894
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Coquand, 1860
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Otodus trigonatus
Original description species: (Agassiz, 1843)
Genus: Lamna Cuvier, 1816
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lebachacanthus cf. colosseus
Original description species: Heidtke, 2007
Genus: Lebachacanthus Soler-Gijon, 1997
Family: Diplodoselachidae Dick, 1981
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Original description species: Heidtke, 2007
Genus: Lebachacanthus Soler-Gijon, 1997
Family: Diplodoselachidae Dick, 1981
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Synonyms: Lebachacanthus senkenbergianus, Orthacanthus senckenbergianus, Orthacanthus senkenbergianus, Orthacanthus (Lebachacanthus) senckenbergianus
Original description species: Fritsch, 1889
Genus: Lebachacanthus Soler-Gijon, 1997
Family: Diplodoselachidae Dick, 1981
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Synonyms: Lebediodon oskolensis
Original description species: Nessov & Averianov, 1996
Genus: Lebedidon Nessov & Averianov, 1996
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Hybodus (Leiacanthus) falcatus
Original description species: Agassiz, 1837
Genus: Leiacanthus Agassiz, 1837
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1986
Genus: Leidybatis Cappetta, 1986
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Leidybates jugosus, Leidybatis cf. jugosus, Leidybatus jugosus, Myliobates jugosus, Myliobatis cf. jugosus, Myliobatis jugosus, Rhinoptera jugosus
Original description species: (Leidy, 1876)
Genus: Leidybatis Cappetta, 1986
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mendiola, 1999
Genus: Leidybatis Cappetta, 1986
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mendiola, 1999
Genus: Leidybatis Cappetta, 1986
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Helodus gibberulus, Helodus laevissimus, Helodus mamillaris, Helodus mammillaris, Helodus (Psammodus) gibberulus, Helodus (Psammodus) laevissimus, Lophodus gibberulus, Lophodus laevissimus, Lophodus mammilaris, Lophodus mammillaris, Psammodus gibberulus, Psammodus laevissimus, Psephodus laevissimus
Original description species: St. John & Worthen, 1875
Genus: Leiodus St. John & Worthen, 1875
Family: Leiodontidae Ginter, Hampe & Duffin, 2010
Order: Orodontiformes
Subclass: Euchondrocephali

Original description species: Kriwet, 2004
Genus: Leiribatos Kriwet, 2004
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Leonodus cf. carlsi
Original description species: Mader, 1986
Genus: Leonodus Mader, 1986
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Genus: Leonodus Mader, 1986
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Egerton, 1843
Genus: Lepracanthus Agassiz, 1843

Synonyms: Hybodonchus cornaliae
Original description species: Bellotti, 1858
Genus: Leptacanthus Agassiz, 1836
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Agassiz, 1837
Genus: Leptacanthus Agassiz, 1836
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Ward, 2008
Genus: Leptocharias Smith, 1838
Family: Leptochariidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Leptocharias Smith, 1838
Family: Leptochariidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet et al., 2020
Genus: Leptocharias Smith, 1838
Family: Leptochariidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna macrorhiza, Lamna mudgei, Leptostyrax bicuspidatus, Leptostyrax cf. bicuspidatus, Leptostyrax mudgei, Megarhizodon macrorhiza, Odontaspis bicarinatus, Odontaspis gr. macrorhiza, Odontaspis macrorhiza
Original description species: (Cope, 1875)
Genus: Leptostyrax Williston, 1900
Family: Cretoxyrhinidae Kriwet, Klug, Canudo & Cuenca-Bescos, 2008
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Leptostyrax aff. stychi
Original description species: Schmitz, Thies & Kriwet, 2010
Genus: Leptostyrax Williston, 1900
Family: Cretoxyrhinidae Kriwet, Klug, Canudo & Cuenca-Bescos, 2008
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ginter, 2008
Genus: Lesnilomia Ginter, 2008
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Marramà, Carnevale, Giusberti, Naylor & Kriwet, 2019
Genus: Lessiniabatis Marramà, Carnevale, Giusberti, Naylor & Kriwet, 2019
Family: incertae sedis
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Otero, 2025
Genus: Lethenia Baut & Genault, 1999
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Isurolamna vandenbroecki, Lamna van den broecki, Lamna vandenbroecki, Odontaspis van den broecki
Original description species: (Winkler, 1880)
Genus: Lethenia Baut & Genault, 1999
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Leucoraja Malm, 1877
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ganopristis hiram, Libanopristis eretes, Rhinobatus eretes, Sclerorhynchus hiram
Original description species: (Hay, 1903)
Genus: Libanopristis Cappetta, 1980
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Newberry, 1879
Genus: Lisgodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali

Original description species: St. John & Worthen, 1875
Genus: Lisgodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali

Original description species: St. John & Worthen, 1875
Genus: Lisgodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali

Original description species: St. John & Worthen, 1875
Genus: Lisgodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali

Original description species: Davis, 1883
Genus: Lispacanthus Davis, 1883
Family: incert. fam.
Subclass: Elasmobranchii

Synonyms: Acrodus africanus, Hybodus africanus, Lissodus aff. africanus
Original description species: (Broom, 1909)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus (Polyacrodus) angulatus, Lissodus sp. aff. angulatus, Polyacrodus angulatus
Original description species: (Stensiö, 1921)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Minikh, 2001
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Derycke-Khatir, 2005
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus cassangensis, Hybodus pusillus*, Lissodus aff. cassangensis
Original description species: (Teixeira, 1956)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Delsate & Duffin, 1999
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus grewingki, Hybodus (Polyacrodus) grewingki, Polyacrodus aff. grewingki, Polyacrodus grewingki
Original description species: (Dalinkevicius, 1935)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Delsate, 2003
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Rees, 1998
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lonchidion indicus
Original description species: (Yadagiri, 1986)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Milner & Kirkland, 2006
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Derycke-Khatir, 2005
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus cf. lacustris
Original description species: Gebhardt, 1988
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrodus leiodus, Lissodus wardi
Original description species: (Woodward, 1887)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrodus leiopleurus
Original description species: (Agassiz, 1839)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus aff. lepagei
Original description species: Duffin, 1993
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrodus levis, Polyacrodus levis
Original description species: (Woodward, 1887)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus allegheniensis
Original description species: Soler-Gijón, 1997
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ginter, Hairapetian & Grigoryan, 2011
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrodonchus minimus, Acrodus acutus, Acrodus aff. minimus, Acrodus minimus, Lissodus cf. minimus, Lissodus (Acrodus) minimus, Polyacrodus minimus, Thectodus crenatus, Thectodus glaber, Thectodus inflatus, Thectodus tricuspidatus
Original description species: (Agassiz, 1839)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus palustris, Priscavolucris montsechi
Original description species: (Gomez Pallerola, 1979)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrodus nitidus
Original description species: (Woodward, 1888)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeobates nodosus, Palaeobates spinosus
Original description species: (Seilacher, 1943)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Duffin & Thies, 1997
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Reesodus pectinatus
Original description species: Lebedev, 1996
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lonchidion breve pustulatum, Lonchidion pustulatum
Original description species: (Patterson, 1966)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Fischer & Schneider & Ronchi, 2010
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Dorka, 2001
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Minich, 1995
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Duffin, Heckert & Hancox, 2023
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Derycke-Khatir, 2005
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Wang, Zhu, Jin, & Wang, 2007
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus cf. zideki, Lissodus (Polyacrodus) zideki, Polyacrodus zideki
Original description species: (Johnson, 1981)
Genus: Lissodus Brough, 1935
Family: fam. indet
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hibbard, 1938
Genus: Listracanthus Newberry & Worthen, 1870
Family: Listracanthidae Martill,Del Strother & Gallien, 2014
Subclass: Elasmobranchii

Original description species: Newberry, 1875
Genus: Listracanthus Newberry & Worthen, 1870
Family: Listracanthidae Martill,Del Strother & Gallien, 2014
Subclass: Elasmobranchii

Synonyms: Listracanthus histrix
Original description species: Newberry & Worthen, 1870
Genus: Listracanthus Newberry & Worthen, 1870
Family: Listracanthidae Martill,Del Strother & Gallien, 2014
Subclass: Elasmobranchii

Original description species: Mutter & Neuman, 2006
Genus: Listracanthus Newberry & Worthen, 1870
Family: Listracanthidae Martill,Del Strother & Gallien, 2014
Subclass: Elasmobranchii

Synonyms: Lobaticorona cf. floriditurris
Original description species: Johns, Barnes & Orchard, 1997
Genus: Lobaticorona Johns, 1997
Subclass: Elasmobranchii

Synonyms: Lissodus anitae
Original description species: Thurmond, 1971
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus aff. babulskii, Lissodus babulski, Lissodus babulskii
Original description species: Cappetta & Case, 1975
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus aff. breve, Lissodus breve, Lissodus brevis, Lonchidion breve breve
Original description species: Patterson, 1966
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Wick & Lehman, 2025
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus aff. crenulatus, Lissodus crenulatus, Lonchidion breve crenulatum
Original description species: Patterson, 1966
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cicimurri, Ciampaglio & Runyon, 2014
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Manzanares, Pla, Martinez-Perez, Ferron & Botella, 2017
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Prasad, Singh, Parmar, Goswami, & Sudan, 2008
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Fischer, Voigt, Schneider, Buchwitz, & Voigt, 2011
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus griffisi
Original description species: (Case, 1987)
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus humblei, Lissodus (Lonchidion) humblei
Original description species: Murry, 1981
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Prasad, Singh, Parmar, Goswami, & Sudan, 2008
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Rees, 2002
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lonchidion aff. khoratensis
Original description species: Cuny, Suteethorn, Kamha, Buffetaut & Philippe, 2006
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus marocensis
Original description species: (Duffin & Sigogneau-Russell, 1993)
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus microselachos
Original description species: Estes & Sanchiz, 1982
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Johns, Albanesi & Voldman, 2014
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cuny, Srisuk, Khamha, Suteethorn & Tong, 2009
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Patterson, 1966
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus selachos, Lonchidion cf. selachos
Original description species: Estes, 1964
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus striatus
Original description species: Patterson, 1966
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lissodus weltoni
Original description species: (Duffin, 1985)
Genus: Lonchidion Estes, 1964
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1986
Genus: Lophobatis Cappetta, 1986
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Loxodon Müller & Henle, 1838
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lunalepis cf. leonensis
Original description species: Mader, 1986
Genus: Lunalepis Mader, 1986
Subclass: Elasmobranchii

Genus: Lunalepis Mader, 1986
Subclass: Elasmobranchii

Original description species: Wen, Zhang, Kriwet, Hu, Zhou, Huang, Cui, Min & Benton, 2023
Genus: Luopingselache Wen, Zhang, Kriwet, Hu, Zhou, Huang, Cui, Min & Benton, 2023
Family: Lonchidiidae Herman, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii