Tristychius
From Wikipedia, the free encyclopedia
| Tristychius Fossil range: Early Carboniferous |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Scientific classification | ||||||||||||
|
Tristychius is an extinct genus of shark from the Carboniferous era.
It was a small shark with a well-developed caudal fin that was aimed upwards, similar to that of many modern sharks. Physically it may have resembled a cat shark. Tristychius also had spikes attached to the bases of its dorsal fins, probably for protection against predators. It was related to the larger Hybodus.
 |
This article about a prehistoric fish is a stub. You can help Wikipedia by expanding it. |
