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'''''Tristychius''''' is an extinct genus of [[shark]] from the [[Carboniferous]] period. Fossils have been found in Scotland. |
'''''Tristychius''''' is an extinct genus of [[shark]] from the [[Carboniferous]] period. Fossils have been found in [[Scotland]]. |
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''Tristychius'' was a small shark, about {{convert|60|cm|ft|sigfig=1}} long. It had a well-developed upturned [[caudal fin]], similar to that of many modern sharks. Physically it may have resembled a modern [[Squaliformes|dogfish]]. ''Tristychius'' also had spikes attached to the bases of its [[dorsal fin]]s, probably for protection against predators.<ref name=EoDP>{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 27|isbn= 1-84028-152-9}}</ref> |
''Tristychius'' was a small shark, about {{convert|60|cm|ft|sigfig=1}} long. It had a well-developed upturned [[caudal fin]], similar to that of many modern sharks. Physically it may have resembled a modern [[Squaliformes|dogfish]]. ''Tristychius'' also had spikes attached to the bases of its [[dorsal fin]]s, probably for protection against predators.<ref name=EoDP>{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 27|isbn= 1-84028-152-9}}</ref> |
Revision as of 12:18, 30 October 2016
Tristychius Temporal range:
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Genus: | Tristychius
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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]
References
- ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 27. ISBN 1-84028-152-9.