Horseshoe Crab: Horseshoe crabs have existed for over 450 million years and have changed very little in appearance during that time.
Coelacanth: Coelacanths are ancient fish species that first appeared around 400 million years ago during the Devonian period.
Nautilus (Order: Nautilida): Nautiluses are cephalopods that have remained relatively unchanged for over 500 million years.
Ginkgo (Ginkgo biloba): Ginkgo trees are considered living fossils, with a lineage dating back over 270 million years.
Crocodilians: Crocodilians, including crocodiles, alligators, and caimans, have been around for over 200 million years.
Tuatara: Tuatara are reptiles endemic to New Zealand and are the only surviving members of their order.
Cycads (Order: Cycadales): Cycads are primitive seed plants that have been around for over 300 million years.
Lamprey: Lampreys are jawless fish that have existed for over 360 million years.
Dragonflies (Order: Odonata): Dragonflies have been flying the skies for over 300 million years. These ancient insects are known for their large.
Sturgeon: Sturgeons are ancient fish species that have been around for over 200 million years. They are known for their elongated bodies, bony plates.