Sphenonectris
In Depth Sphenonectris is a genus of thelodontid fish that lived in waters associated with what is now Canada during the early Devonian. Further Reading - The Furcacaudiformes: a new order of jawless vertebrates with thelodont scales, based on articulated Silurian and Devonian fossils from northern Canada. - Journal of Vertebrate Paleontology, Volume 18, no. … Read more