
Ogthar took personal credit for the creation of the strutters, at one point announcing during a circus event including dinosaurs that his newest creation, a massive insect-like strutter, would make the dinosaurs “obsolete”, before unleashing it and almost killing a performing Megaraptor. Dinosaurs served as royal advisors in Poseidos during Ogthar’s early reign, but were at some point banned from the city by him, replaced by strutters and skimmers for transportation purposes. His royal attire included a headdress based on the horns and frills of a ceratopsian dinosaur. Ogthar was a member of the Demisaurian Brotherhood, a group of Poseidian high officials who sought to cultivate the power of the saurian mind. The approximate extent of the Empire of Poseidos in the reign of Ogthar Prior to the rediscovery of Poseidian artifacts in 1867, it was widely believed by the Dinotopians that Ogthar and Poseidos had never existed at all and were just fantasy. Over the millennia following his death, Ogthar’s dark deeds were forgotten and he was remembered as a legendary great and wise demisaurian king who discovered the sunstones and brought metallic beasts to life with them.

Ogthar fled into the World Beneath along with some of his loyal ministers, where he survived for some time, trying to create new laboratories.

The extensive mining operations beneath Poseidos eventually doomed the capital, which sank beneath the sea in the final days of the Age of Heroes, leading to the collapse of its empire. Though Ogthar secured an alliance with the Chandaran Empire through marrying its ruler, Queen Almestra, relations between the two empires soured since Chandara was home to the largest population of dinosaurs on the island and the Poseidians had agreed that no harm would come to the dinosaurs. The Poseidians attacked the mainland and extended their rule through Dinotopia, displacing humans and dinosaurs alike and threatening all of the old ways of the island.

Ogthar’s arrogance and sense of superiority went so far that his regime began to hunt down and slaughter dinosaurs for food, reserved for consumption by the Poseidian elite. Throughout his reign, Ogthar worked to perfect the technology further, creating strutters so advanced that he deemed the dinosaurs to be obsolete and banned them from the Poseidos. Ogthar’s reign saw a considerable increase in technological advancement as the Poseidians perfected their sunstone-driven machines. Dinotopia: The World Beneath, Dinotopia: First Flight, Dinotopia: Journey to Chandara Ogthar was the last Emperor or King of Poseidos, ruling during the Age of Heroes, four thousand years ago.
