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.
It is the oldest known turtle-like fossil and its shell appears to be only half-formed, covering its belly but leaving its back unprotected. Scientists believe it shows the evolutionary transition from the shell-less state of the earliest turtle ancestor to the fully formed shell of all living turtles.t is the oldest known turtle-like fossil and its shell appears to be only half-formed, covering its belly but leaving its back unprotected. Scientists believe it shows the evolutionary transition from the shell-less state of the earliest turtle ancestor to the fully formed shell of all living turtles.