Tristychius

Tristychius
Temporal range: Early Carboniferous
Restoration
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Ctenacanthida
Genus: Tristychius

Tristychius is an extinct genus of shark from the Carboniferous period. Fossils have been found in Scotland.

Tristychius was a small shark, about 60 centimetres (2 ft) long. It had a well-developed upturned caudal fin, similar to that of many modern sharks. Physically it may have resembled a modern dogfish. Tristychius also had spikes attached to the bases of its dorsal fins, probably for protection against predators.[1]

Life reconstruction of Tristychius arcuatus

References

  1. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 27. ISBN 1-84028-152-9.


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