| Named By: | P.inY. Gagnier, G. F. Hanke & M. V. H. Wilson in 1999 |
| Time Period: | Lochkovian |
| Location: | Canada |
| Size: | About 4 centimetres long |
| Diet: | Carnivore |
| Fossil(s): | Several specimens preserved complete upon slabs |
| Classification: | | Chordata | Acanthodii | Diplacanthida | Tetanopsyridae | |
Tetanopsyrus is a genus of Acanthodii. There are two species of this genus that lived through the lower Devonian (Lochkovian), some 416 to 359 million years ago.