Living fossil is a term for any living species of organism which closely resembles species otherwise only known from fossils and has no close living relatives. These species have all survived major extinction events, and generally retain low taxonomic diversities.
Some examples of living fossils in animals are: Coelocanth, polyp (Coral), Crocodiles, gavials and alligators), horseshoe crab (Limulus polyphemus), monotremes (the Platypus and echidnas), snout nosed frog (Nasikabatrachus sahyadrensis),
Some examples of living fossils in plants are: Ginkgo biloba
