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- Turtles originated from reptilian ancestors around 260 million years ago during the Permian Epoch123. The earliest known turtles date back to around 215 million years ago during the Triassic Period2. These ancient reptiles gradually evolved into the sea turtles we know today, with the first fully marine turtles emerging during the Cretaceous Period45.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The earliest turtles known date to the Late Permian Epoch (the Permian Period lasted from 298.9 million to about 251.9 million years ago). Whereas living turtles are toothless, many ancestral forms possessed teeth. Many of the oldest and most primitive forms not only lacked a shell but also lacked a plastron and a carapace.www.britannica.com/animal/turtle-reptile/Origin-an…During the Triassic Period, one line of reptiles gave rise to the first mammals and others to the earliest turtles and crocodiles. The earliest known turtles are from around 215 million years ago, making turtles one of the oldest reptile groups and a much more ancient group than lizards and snakes.www.ck12.org/flexi/life-science/turtles/where-do-turt…The turtles themselves split off from their reptilian ancestors at least 260 million years ago (Permian). This is evidenced by the fossil find of Eunotosaurus in South Africa, an animal that still had more of a lizard-like appearance but already showed a tendency to broaden its ribs and thus form a shell.www.turtle-foundation.org/en/sea-turtles/sea-turtle…The first fully marine turtles emerged during the Cretaceous Period, a span of time lasting between 145 and 66 million years ago. By 120 million years ago, they resembled the sea turtles we are familiar with today.ocean.si.edu/through-time/ancient-turtleThe oldest possible representative of the lineage (Panchelonioidea) leading to modern sea turtles was possibly Desmatochelys padillai from the Early Cretaceous. Desmatochelys was a protostegid, a lineage that would later give rise to some very large species but went extinct at the end of the Cretaceous.en.wikipedia.org/wiki/Sea_turtle Turtle - Evolution, Adaptation, Conservation | Britannica
- The earliest turtles known date to the Late Permian Epoch (the Permian Period lasted from 298.9 million to about 251.9 million …
- Eunotosaurus africanus, the earliest known turtle, lived 260 million years ago. Eunotosaurus was to… See more
- The earliest turtles known date to the Late Permian Epoch (the Permian Period last…
- Eunotosaurus africanus, the earliest known turtle, lived 260 million years ago…
- Odontochelys semitestacea, a species dating from about 22… See more
5. The origin of turtles - Earth History
Learn how turtles evolved from terrestrial reptiles and acquired their distinctive features, such as the shell and the beak. Explore the fossil record of turtles from the Triassic to the present, and …
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Early Origins of Turtles - Denver Museum of Nature and Science
The origin of the turtle shell is a major evolutionary transition whose initial function was unknown. Lyson et al. present a strongly supported idea that a burrowing ecology and adaptations …
250 Million Years of Turtle Evolution - ThoughtCo
Jan 12, 2019 · In a way, turtle evolution is an easy story to follow: the basic turtle body plan arose very early in the history of life (during the late Triassic period), and has persisted pretty much unchanged down to the present day, with the …
Turtle | Species, Classification, & Facts | Britannica
Although numerous animals, from invertebrates to mammals, have evolved shells, none has an architecture like that of turtles. The turtle shell has a top (carapace) and a bottom (plastron). …
Turtles have lived for 230 million years - but will they …
May 22, 2020 · The origin of turtles. Turtles are known to have originated around 230 million years ago during the Triassic Period, but what exactly they evolved from is still debated.
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Where did turtles evolve from? - reptileknowledge.com
Where did turtles originate? The oldest known soft-shelled turtles and sea turtles appeared during the Early Cretaceous. Tortoises originated in Asia during the Eocene. A late surviving group of …
Evolutionary origin of the turtle skull | Nature
Sep 2, 2015 · Despite strong genomic evidence indicating that turtles evolved from within the diapsid radiation (which includes all other living reptiles 6, 7), evidence of the inferred transformation between...
Turtle origins out to sea | Nature
Nov 26, 2008 · Previously, the fossil evidence for turtle origins came largely from Proganochelys quenstedti from Germany, which lived between 204 million and 206 million years ago, and other...
Turtles emerge from their evolutionary shell | Nature
Jul 19, 2011 · According to the fossil record, turtles first appeared in the Triassic period around 230 million years ago, and have changed little since. Crucially, turtles lack temporal fenestrae,...
Turtle - Adaptations, Habitats, Lifespan | Britannica
Nov 12, 2024 · Turtles have adapted to a remarkable variety of environments, but the greatest number of species occur in southeastern North America and South Asia. In both areas, most species are aquatic, living in bodies of water ranging …
Flexi answers - Where do turtles come from? | CK-12 Foundation
Where do turtles come from? Flexi Says: During the Triassic Period, one line of reptiles gave rise to the first mammals and others to the earliest turtles and crocodiles. The earliest known …
Transitional fossils and the origin of turtles | Biology Letters
The origin of turtles is one of the most contentious issues in systematics with three currently viable hypotheses: turtles as the extant sister to (i) the crocodile–bird clade, (ii) the lizard–tuatara …
Sea turtles: biology and natural history | Turtle Foundation
But the history of sea turtles goes back much further. The turtles themselves split off from their reptilian ancestors at least 260 million years ago (Permian).
An Ancient Turtle - Smithsonian Ocean
Eunotosaurus, a reptile who lived about 260 million years ago during the Permian period, is the earliest known ancestor of modern turtles. This animal had wide, elongated ribs, but had not …
Turtle origins - Why Evolution Is True
Jun 2, 2013 · Understanding of the origin of turtles has been hampered by the lack of a good fossil record. For many years the earliest known turtle was Proganochelys from the Late Triassic …
How did the turtle get its shell? Fossil discovery gives us a clue
Jun 24, 2015 · A lack of fossils has made it impossibe to trace the origin and early evolution of turtles - until now.
How Did Turtles Get Their Shells? Oldest Known Turtle Fossil, …
Nov 27, 2008 · The fossilized turtle ancestor, dubbed Odontochelys semitestacea (translation: half-shelled turtle with teeth), likely lived in the water rather than on land.
Origin & History Of Turtles: Ancient Myth To Modern Science
Oct 16, 2024 · In this article, I tried to present a concise overview of the origin and history of turtles in some of the most prominent cultures around the world. Hopefully, from ancient myth …
How did the turtle get its shell? - The Official PLOS Blog
Jul 30, 2019 · It has long been thought that the tough, bony shells of turtles and their ancestors are formed from their ribs. Becoming heavily modified over millions of years, they joined …
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