The Evolution Tree: 1) Eunotosaurus: The striking thing about Eunotosaurus is that it possessed wide, elongated ribs that curved around its back, a kind of "proto-shell" that one can easily imagine evolving into the giant carapaces of true turtles. 2) Pappochelys: Pappochelys fills an important gap in turtle evolution: this lizard-like creature lived during the early Triassic period, and while it had no shell, its broad, curved ribs were clearly heading in that direction. 3) Placodus: Placodus is an extinct genus of marine reptiles that lived approximately 240 million years ago. It represents a fascinating part of Earth's ancient marine ecosystem and provides insights into the diversity of life during the Triassic period. 4) Placochelys: Despite its uncanny resemblance, Placochelys wasn't a true prehistoric turtle, but a member of the family of marine reptiles known as "Placodonts". Still, animals that pursue similar lifestyles tend to evolve similar shapes. 5) Cyamodus: This marine reptile was widely considered to be an ancestral turtle, thanks to its testudine-like head and large, bifurcated carapace. 6) Henodus: Henodus is an excellent example of how nature tends to produce similar shapes among creatures with similar lifestyles. This marine reptile looked uncannily like a prehistoric turtle, but it's actually not the same path. 7) Odontochelys: The name "Odontochelys" means "toothed turtle," and this is a reference to one of its distinctive features: it had teeth, unlike modern turtles. 8) Psephoderma: While not a direct ancestor of modern turtles, Psephoderma belongs to a group of reptiles called "Proganochelyids", they are often considered important in the evolutionary history of turtles. 9) Proganochelys: Proganochelys was almost indistinguishable from a modern turtle, with the exception of its spiked neck and tail. Proganochelys also possessed very few teeth; modern turtles are completely toothless 10) Green Sea Turtle: is one of the seven extant species of sea turtles and is known for its distinctive greenish skin coloration. It is listed as endangered or threatened in many parts of its range due to habitat destruction, pollution, poaching, and so on. 11) Leatherback Sea Turtle: They are the largest and one of the most distinctive species of sea turtle. Leatherback Sea Turtle are classified as vulnerable to extinction by the International Union for Conservation of Nature (IUCN). 12) Archelon: Archelon was a massive prehistoric sea turtle that lived during the Late Cretaceous period. Archelon was enormous, with a shell length that could reach up to 12 feet (about 3.7 meters) or more. 13) Puentemys: a prehistoric turtle that was distinguished not only by its enormous size but by its unusually large, round shell. Like Carbonemys, Puentemys shared its habitat with the biggest prehistoric snake yet identified, the 50-foot-long Titanoboa. 14) Alligator Snapping Turtle: The alligator turtle is given its common name because of its immensely powerful jaws and distinct ridges on its shell that are similar in appearance to the rough, ridged skin of an alligator 15) Hawksbill Sea Turtle: The Hawksbill Turtle is known for its beautiful shell which was once highly valued for decorative purposes. However, due to overexploitation, the species has been listed as critically endangered by the World Conservation Union 16) Yangtze Giant Softshell Turtle: Another critically endangered species of turtle. With a known population of only three individuals, and with the last females dying out in 2019, this species is considered functionally extinct. 17) Stupendemys: Stupendemys is an extinct genus of freshwater side-necked turtle that lived in northern South America about 13 to 5 million years ago. It is the largest freshwater prehistoric turtle that ever lived. 18) Meiolania: This slow-moving denizen of Australia not only sported a huge, hard shell, but its strangely armored head and spiked tail seemed to have been borrowed from the ankylosaur dinosaurs. 19) Galapagos Giant Tortoise: Iconic species from the Galápagos Islands, known for their size and longevity. The average lifespan of a Galápagos tortoise is over 100 years, making it one of the longest-lived vertebrates. 20) Jonathan (1832 - 2023): Jonathan is the oldest known living land animal, with an estimated age of 190-191 years. He was named in the 1930s by the Governor of Saint Helena Sir Spencer Davis and has lived through 31 governors’ terms Thank a lot for watching, Please subscribe if possible. See u in the next video
@jamessparkman6604 Жыл бұрын
By getting turtles off the endangered species list, we can de extinct with evolution these species as well