Sphenonectris

Sphenonectris is an extinct genus of furcacaudiform thelodont which lived in the Northwest Territories of Canada during the Early Devonian period. It hails from the MOTH locality in the Mackenzie Mountains.^[2]

Sphenonectris
An artist's concept of Sphenonectris.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Thelodonti
Order:	Furcacaudiformes
Family:	†Furcacaudidae
Genus:	Sphenonectris
Species
Sphenonectris turnerae [1]

Though large by furcacaudiform standards, Sphenonectris were small, jawless fish, characterized by their laterally compressed pot-bellied body and forked tail. They possessed a hunched pomacanthid-like body with the only visible fin being the caudal fin.^[2]

Sphenonectris sp. cast. Mackenzie Mountains, Northwest Territories (Canada). At the Royal Tyrrell Museum of Palaeontology.