Xenacanthus

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iXenacanthus
Fossil range: Devonian–Triassic
Conservation status
Extinct (fossil)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Xenacanthida
Family: Xenacanthidae
Genus: Xenacanthus
Species

See text.
Xenacanthus
Translation strange spike
Type shark
Length 2 ft 6 in (75 cm)
Age 410 - 202 million years ago
Diet carnivore
Environment ocean
Distribution worldwide
Portal:Sharks
 Sharks Portal


Xenacanthus is a genus of prehistoric sharks, belonging to the family Xenacanthidae and the order Xenacanthida. The first species of the genus lived in the later Devonian period, and they survived until the end of the Triassic, 202 million years ago. These freshwater species had a long spine at the back of their head. As in all fossil sharks, Xenacanthus is mainly known because of fossilised teeth and spines.

[edit] Species

  • Xenacanthus atriossis
  • Xenacanthus compressus
  • Xenacanthus decheni
  • Xenacanthus denticulatus
  • Xenacanthus erectus
  • Xenacanthus gibbosus
  • Xenacanthus gracilis
  • Xenacanthus howsei
  • Xenacanthus laevissimus
  • Xenacanthus latus
  • Xenacanthus luedernesis
  • Xenacanthus moorei
  • Xenacanthus ossiani
  • Xenacanthus ovalis
  • Xenacanthus parallelus
  • Xenacanthus parvidens
  • Xenacanthus robustus
  • Xenacanthus serratus
  • Xenacanthus slaughteri
  • Xenacanthus taylori


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