 Not much has been said about it.Always identified as a "triconodont" mammal, recent studies have recovered it as a triconodontid eutriconodont, as most closely related to "Alticonodon" and "Corviconodon" (these are in turn each other's sister taxa).Because of its abundance on lake and estuary deposits and particular association with fish-rich areas, it has been suggested that "Astroconodon" was an aquatic piscivore, an assertion reinforced by a perceived functional similarity between its molars and those of cetaceans and pinnipeds.