Sassenia

Sassenia is an extinct genus of prehistoric coelacanth lobe-finned fish that lived during the Early Triassic epoch in what is now East Greenland and Svalbard.
The type species, Sassenia tuberculata, was first described from Sassendalen, Sabine Land, on the island of Spitsbergen, Svalbard, from where the genus name is also derived. Fossils of S. tuberculata and a possible second species, S.? guttata, were both collected from the Vikinghøgda Formation and are Smithian in age. Another species, S. groenlandica, was later discovered in Griesbachian aged layers of the Wordie [Creek Formation] in Greenland.