â¢ TURDUS MIGRATORIUS (noun). The noun TURDUS MIGRATORIUS has 1 sense: 1. large American thrush having a rust-red breast and abdomen. Familiarity information: TURDUS MIGRATORIUS used as a noun is very rare. TURDUS MIGRATORIUS (noun). The noun TURDUS MIGRATORIUS has 1 sense: 1. large American thrush having a rust-red breast and abdomen. Familiarity information: TURDUS MIGRATORIUS used as a noun is very rare.
He said: Jonathan is the sole survivor of three tortoises that arrived on St Helena Island in 1882. He was already mature when he arrived and was at least 50-years-old. Therefore his minimum age is 176-years-old. He is the oldest inhabitant on St Helena and is claimed to be the oldest living tortoise in the world. He lives in the grounds of Plantation House which is the governor's residence with five other tortoises who are much younger than him.
Sea Turtle History. The oldest fossils of turtles were found in Germany and date back 215 million years, during the Triassic period. 1 They are among the oldest fossils of four-legged animals and one of the Earthâs most ancient creatures.These ancestral turtles had completely formed shells and lived on land, in marshes.here are two groups of sea turtles: Dermochelyidae, including the Leatherback, are the most ancient sea turtles, the largest, and the only sea turtles without a hard shell; Cheloniidae, including the other six types of sea turtle, vary in size but all have a hard shell.