Extinct Species
Hoffstetter’s Worm Snake
Eastwood’s Longtailed Seps
Tonga Ground Skink
Rodrigues Giant Day Gecko
Seychelles Mud Turtle
Barbados Racer
Didosaurus Maurtianus
Martinique Curlytail Lizard
Navassa Curlytail Lizard
Kawekaweau
Floreana Giant Tortoise
Pinta Giant Tortoise
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Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species.
The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species’ potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, mammoths, ground sloths, thylacines, trilobites and golden toads.
Source: Wikipedia.org