The Asteroid Hit of 300,000,000 BCE was a Devastating Meteorite that slammed into ROBLOX, impacting Robloxia with the Impact site in Seaboard. It hit 300 million years ago. The Robloxian Dinosaurs did not realize that an asteroid came hurtling at them. Due to the fact that the asteroid was not discovered until 28 hours before impact, there was little time for Robloxian Dinosaurs and Robloxians in the impact area to evacuate, resulting in an extreme amount of Robloxian deaths and the extinction of the Robloxian Dinosaurs within 1 x 10-9 second of impact. The number of deaths will never be truly known. When the asteroid entered the atmosphere, the mildly hot weather and the friction between the asteroid and the carbon dioxide and other gases somehow managed to super heat the asteroid.
Post-impact
The asteroid struck the area, causing a massive crater. A few minutes later, an earthquake rocked the area, causing the crater to become an active volcano. As the shock waves rung throughout the planet, dozens of earthquakes shook parts of ROBLOX. These quakes caused massive tsunamis wiping out low-lying areas of large landmasses and completely submerging hundreds of islands. In addition to earthquakes, new fault zones appeared within 600 miles of Seaboard, along with ROBLOX-wide volcanic activity and new active volcanoes particularly in Robloxia, Bloxanada, and Bloxico. The impact also caused volcanoes to erupt in enormous eruptions, causing a global volcanic winter, in addition to the "asteroid winter" caused by the main impact of the asteroid. Fortunately, the new fault zones and new active volcanoes are extinct today.
Amid all of the chaos, Robloxian Dinosaurs were extinct. They were to be accidentally cloned by Despacitos, Blocky Dogs, and R6s before the Robloxian dinosaurs were truly extinct.
Despite all of the chaos, Despacitos, Blocky Dogs, R6 Sub-Species ( would later evolve to R15 Sub-Species and RTHRO Sub-species ), and 50 species survived on each of the continents.