Xampylodon brotzeni (9)
(Siverson, 1995)
(Siverson, 1995)
Synonyms:
Notidanodon brotzeni, Notidanodon cf. brotzeni
Original description species: (Siverson, 1995)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Original description species: (Siverson, 1995)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xampylodon dentatus (27)
(Woodward, 1886)
(Woodward, 1886)
Synonyms:
Notidanodon cf. dentatus, Notidanodon dentatus, Notidanus dentatus, Notorynchus dentatus
Original description species: (Woodward, 1886)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Original description species: (Woodward, 1886)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xampylodon diastemacron (1)
Otávio dos Santos, Riff, Ramos, Rodrigues, Scheffler, Sucerquia & de Araújo Carvalho, 2024
Otávio dos Santos, Riff, Ramos, Rodrigues, Scheffler, Sucerquia & de Araújo Carvalho, 2024
Original description species:
Otávio dos Santos, Riff, Ramos, Rodrigues, Scheffler, Sucerquia & de Araújo Carvalho, 2024
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xampylodon loozi (32)
(Vincent, 1876)
(Vincent, 1876)
Synonyms:
Notidanodon cf. loozi, Notidanodon looi, Notidanodon loozi, Notidanus loozi, Notidanus (Hexanchus) loozi
Original description species: (Vincent, 1876)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Original description species: (Vincent, 1876)
Genus: Xampylodon Cappetta, Morrison & Adnet, 2019
Family: Hexanchidae Gray, 1851
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xenacanthus acinaces (3)
(Dawson, 1860)
(Dawson, 1860)
Synonyms:
Diplodus acinaces, Dittodus acinaces
Original description species: (Dawson, 1860)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Dawson, 1860)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus decheni (32)
(Goldfuss, 1847)
(Goldfuss, 1847)
Synonyms:
Orthacanthus dechenii, Pleuracanthus decheni, Pleuracanthus (Xenacanthus) decheni
Original description species: (Goldfuss, 1847)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Goldfuss, 1847)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus elegans (5)
(Traquair, 1881)
(Traquair, 1881)
Synonyms:
Pleuracanthus elegans
Original description species: (Traquair, 1881)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Traquair, 1881)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus gaudryi (2)
(Brongniart & Sauvage, 1888)
(Brongniart & Sauvage, 1888)
Synonyms:
Pleuracanthus gaudryi
Original description species: (Brongniart & Sauvage, 1888)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Brongniart & Sauvage, 1888)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus humbergensis (5)
Hampe, 1994
Hampe, 1994
Original description species:
Hampe, 1994
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus laevissimus (21)
(Agassiz, 1837)
(Agassiz, 1837)
Synonyms:
Compsacanthus major, Dittodus divergens, Expleuracanthus laevissimus, Pleuracanthus erectus, Pleuracanthus laevissimus, Pleuracanthus planus, Pleuracanthus woodwardi, Pleuracanthus (Diplodus) laevissimus, Pternodus productus
Original description species: (Agassiz, 1837)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Agassiz, 1837)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus latus (8)
(Newberry & Worthen, 1866)
(Newberry & Worthen, 1866)
Synonyms:
Diplodus latus, Orthacanthus cf. latus, Xenacanthus cf. latus
Original description species: (Newberry & Worthen, 1866)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Newberry & Worthen, 1866)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus meisenheimensis (11)
Hampe, 1994
Hampe, 1994
Original description species:
Hampe, 1994
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus oelbergensis (3)
(Fritsch, 1890)
(Fritsch, 1890)
Original description species:
(Fritsch, 1890)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus ossiani (2)
Johnson, 1999
Johnson, 1999
Synonyms:
Xenacanthus cf. ossiani
Original description species: Johnson, 1999
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: Johnson, 1999
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus ovalis (8)
(Fritsch, 1890)
(Fritsch, 1890)
Synonyms:
Pleuracanthus ovalis
Original description species: (Fritsch, 1890)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Fritsch, 1890)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus parallelus (13)
(Fritsch, 1890)
(Fritsch, 1890)
Synonyms:
Pleuracanthus parallelus, Xenacanthus paralellus
Original description species: (Fritsch, 1890)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Fritsch, 1890)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus penetrans (2)
(Dawson, 1860)
(Dawson, 1860)
Synonyms:
Dittodus penetrans
Original description species: (Dawson, 1860)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Dawson, 1860)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus pricei (1)
Würdig-Maciel, 1975
Würdig-Maciel, 1975
Original description species:
Würdig-Maciel, 1975
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus ragonhai (1)
Pauliv, Dias, Sedor & Ribeiro, 2014
Pauliv, Dias, Sedor & Ribeiro, 2014
Original description species:
Pauliv, Dias, Sedor & Ribeiro, 2014
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus remigiusbergensis (6)
Hampe, 1994
Hampe, 1994
Original description species:
Hampe, 1994
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus santosi (1)
Würdig-Maciel, 1975
Würdig-Maciel, 1975
Original description species:
Würdig-Maciel, 1975
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus slaughteri (3)
Johnson, 1999
Johnson, 1999
Original description species:
Johnson, 1999
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus tenuis (4)
(Woodward, 1889)
(Woodward, 1889)
Synonyms:
Diplodus tenuis
Original description species: (Woodward, 1889)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Woodward, 1889)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus tocantinsensis (3)
Silva Santos & Salgado, 1970
Silva Santos & Salgado, 1970
Original description species:
Silva Santos & Salgado, 1970
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenacanthus tridentatus (5)
(Harlton, 1933)
(Harlton, 1933)
Synonyms:
Bransonella tridentata
Original description species: (Harlton, 1933)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Original description species: (Harlton, 1933)
Genus: Xenacanthus Beyrich, 1848
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xenosynechodus egloni (8)
Glikman, 1980
Glikman, 1980
Original description species:
Glikman, 1980
Genus: Xenosynechodus Glikman, 1980
Family: Xenosynechodontidae Glickman, 1980
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Genus: Xenosynechodus Glikman, 1980
Family: Xenosynechodontidae Glickman, 1980
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Xiaohaizilepis liui (2)
Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Original description species:
Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Genus: Xiaohaizilepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Genus: Xiaohaizilepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Xinjiangichthys pluridentatus (5)
Wang, Zhang, Wang & Zhu, 1998
Wang, Zhang, Wang & Zhu, 1998
Original description species:
Wang, Zhang, Wang & Zhu, 1998
Genus: Xinjiangichthys Wang, Zhang, Wang & Zhu, 1998
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Genus: Xinjiangichthys Wang, Zhang, Wang & Zhu, 1998
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Xinjiangichthys tarimensis (1)
Wang, Zhang, Wang & Zhu, 1998
Wang, Zhang, Wang & Zhu, 1998
Original description species:
Wang, Zhang, Wang & Zhu, 1998
Genus: Xinjiangichthys Wang, Zhang, Wang & Zhu, 1998
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Genus: Xinjiangichthys Wang, Zhang, Wang & Zhu, 1998
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Xiphodolamia ensis (66)
Leidy, 1877
Leidy, 1877
Synonyms:
Carcharias (Scoliodon) eocaenus, Isurus eocaenus, Oxyrhina eocaena, Oxyrhina zignoi, Rhizoprionodon eocaenus, Xenodolamia barbadica, Xenodolamia eocaena, Xiphodolamia barbadica, Xiphodolamia eocaena, Xiphodolamia eocenica, Xiphodolamia zignoi, Xyphodolamia ensis
Original description species: Leidy, 1877
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Original description species: Leidy, 1877
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xiphodolamia maliki (1)
Artüz & Sakinç, 2025
Artüz & Sakinç, 2025
Original description species:
Artüz & Sakinç, 2025
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xiphodolamia serrata (4)
Adnet & Hosseinzadeh & Antunes & Balbino & Kozlov & Cappetta, 2009
Adnet & Hosseinzadeh & Antunes & Balbino & Kozlov & Cappetta, 2009
Original description species:
Adnet & Hosseinzadeh & Antunes & Balbino & Kozlov & Cappetta, 2009
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Genus: Xiphodolamia Leidy, 1877
Family: Xiphodolamiidae Cappetta, 2012
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Xystracanthus arcuatus (2)
Leidy, 1859
Leidy, 1859
Xystrogaleus cappettai (5)
Adnet, 2006
Adnet, 2006
Original description species:
Adnet, 2006
Genus: Xystrogaleus Adnet, 2006
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Genus: Xystrogaleus Adnet, 2006
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
