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Detailed explanation-1: -Fossil imprints of Kampecaris obanensis from the island of Kerrera in Scotland have been radiometrically dated to around 425 million years ago, in the Silurian period.

Detailed explanation-2: -The oldest known living terrestrial animal is Jonathan, a Seychelles giant tortoise (Aldabrachelys gigantea hololissa), originally from the Seychelles but now a long-time resident of the remote South Atlantic island of St Helena. He is believed to have been born c. 1832, thus making him 190 years old in 2022.

Detailed explanation-3: -Summary: A 425-million-year-old millipede fossil from the Scottish island of Kerrera is the world’s oldest ‘bug’ – older than any known fossil of an insect, arachnid or other related creepy-crawly.

Detailed explanation-4: -The world’s oldest known animal, Dickinsonia, dates to about 540 million years ago. A discovery in a remote region of north-west Canada is about to change what we understood until now.

Detailed explanation-5: -The earliest known land animal is Pneumodesmus newmani, a species of millipede known from a single fossil specimen, which lived 428 million years ago during the late Silurian Period. It was discovered in 2004, in a layer of sandstone near Stonehaven, in Aberdeenshire, Scotland.