The bodies found were tested and were dated to be around 1700-1800 years old. This is pre the younger dryas event which was thought to have been caused from melting ice which may have happened a bit later on due to a comet impacted over greenland 12,800 years ago. They have found what looks like two huge greenland craters - one of which is 31 km in diameter which would have wiped most of the earth's species out at that time - hence many of the megafauna becoming extinct around that time and maybe traces of these reptile like beings. The sea levels were thought to have risen by 28 meters over a very short time which is what the flood stories in the past may have referred to with the great deluge/flood told in many cultures. They also found tops of mountains across many continents with burnt layers and nano diamonds which also point to a comet impact which would have caused mass extinctions. The countries effected where North America, mexico, peru, canada, iceland, greenland, and europe which is a vast range.