Fossil evident is not need to have entire body (extremly rare case), but several case, only one part of important character, diagnosis can tell distinct taxa, from order to species. because we have all sample of recent and known fossil spp. already, combine with geological layer, or Biostratigraphies. This case is very clear that Amphicyonids that reported from many places but never in Thai. The finding can proved that it is new taxa for sure, by shapes/pattern of teeth, bone shapes and surrounding species habitats which compared with previouse info./taxa reported from other countries.