 Negative buoyancy requires dense bones and a limited layer of blubber, which would make thermoregulation difficult for them in cooler water temperatures, particularly in view of the low metabolic rate of xenarthrans.Thus, "Thalassocnus" would have been poorly adapted to the changing conditions even if enough seagrass remained to subsist on.Lake Placid Roamers

The Lake Placid Roamers were an independent, intermediate senior level ice hockey team from Lake Placid, New York.