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Xenacanthida (or
Xenacanthiformes) is an
order or
superorder of
extinct shark-like
chondrichthyans (cartilaginous fish)
known from the
Carboniferous to...
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Phoebodontiformes †Order
Squatinactiformes †Infraclass
Xenacanthimorpha †Order
Xenacanthiformes †Order
Ctenacanthiformes †Order
Jalodontiformes †Bandringa Infraclass...
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Xenacanthimorpha Berg, 1940 †Order
Bransonelliformes Hampe & Ivanov, 2007 †Order
Xenacanthiformes Berg, 1940
Infraclass Euselachii (sharks and rays) †Order Altholepidiformes...
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abundant members of
marine and
freshwater faunas throughout the Permian.
Xenacanthiformes,
another extinct group of shark-like chondrichthyans, were
common in...
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polyphyletic with
respect to
other groups of
total group elasmobranchs like
Xenacanthiformes.
Following Hodnett et al. 2024
Ctenacanthidae Dean 1909 Ctenacanthus...
- and
palaeobiogeography of the
genus Orthacanthus (Diplodoselachidae,
Xenacanthiformes) from the
lower Permian of France".
Papers in Palaeontology. 8 (6)...
- "The
first Western Gondwanan species of
Triodus Jordan 1849: A new
Xenacanthiformes (Chondrichthyes) from the late
Paleozoic of
Southern Brazil". Journal...
- the
following taxa: Cladoselache, Eugeneodontiformes, Symmoriida,
Xenacanthiformes, Ctenacanthiformes, Hybodontiformes, Galeomorphii,
Squaliformes and...
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Phoebodus Thrinacodus †Symmoriiformes †Bransonelliformes
Barbclabornia Bransonella †
Xenacanthiformes Crown-Chondrichthyes
Holocephali Elasmobranchii...
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Eliseu V.; Sedor,
Fernando A.; Ribeiro, Ana
Maria (March 2014). "A new
Xenacanthiformes shark (Chondrichthyes, Elasmobranchii) from the Late
Paleozoic Rio...
