Age of Falling Stars
The oldest known, or rather speculated, period of history on record. Research has shown that during these times the prominent races were reptilian, although there is much debate over exactly which races. Although remnants exist of these reptiloids such as the Lizardmen and Yuan-ti their empires have crumbled to nothing in recent history.
At some point during the long reign of the reptiloids there was a great upheaval and the geography of the planet was altered drastically. Shifting seas, volcanoes, earthquakes and terrible storms wracked the planet for some time.
Evidence points to the cause of this as stars that fell from the heavens. Remnants of metallic ores found nowhere else on Loressea and creatures defying any logical explanation are the major sources of evidence.