Tristichopterus

Tristichopterus is an extinct genus of tristichopterids from the Upper Devonian. It is the smallest of the Tristichopteridae. It contains a single species, T. alatus. Due to its resemblance to Eusthenopteron, people are often confused if it is a separate taxon or not.

Tristichopterus

Geology

Tristichopterus could probably be from Laurasia alongside the more famous Eusthenopteron.

Description

Tristichopterus looks a bit like Eusthenopteron, leading to confusion on which is which. The fish is 30 cm long and has backward dorsal fins.

Tristichopterus resembles Eusthenopteron (pictured above)

References

1. Bishop, P.J. 2012. "A second species of Tristichopterus (Sarcopterygii: Tristichopteridae), from the Upper Devonian of the Baltic Region". Memoirs of the Queensland Museum – Nature.