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Archelon is an extinct marine turtle from the Late Cretaceous, and is the largest turtle ever to have been documented, with the biggest specimen measuring 4.6 m (15 ft) from head to tail and 2.2–3.2 t (2.4–3.5 short tons) in body mass. It is known only from the Pierre Shale and has one species, A. ischyros. In the past, the genus … 展开
The holotype specimen, YPM 3000, was collected from the Late Campanian-age Pierre Shale of South Dakota along the Cheyenne River in Custer County by American paleontologist … 展开
In its original 1896 description, Wieland placed Archelon into the family Protostegidae, which included at the time the smaller Protostega and Protosphargis, the latter being nowadays … 展开
Archelon was an obligate carnivore. The thick plastron indicates the animal probably spent a lot of time on the soft, muddy seafloor, likely a … 展开
The holotype measures 352 cm (11.5 ft) from head to tail, with the head measuring 60 cm (2 ft), the neck 72 cm (2.4 ft), the thoracic vertebrae 135 cm (4.4 ft), the sacrum 15 cm (0.5 ft), and the tail 70 cm (2.3 ft). The largest specimen, Brigitta, measures around 4.6 m … 展开
Archelon inhabited the shallow Western Interior Seaway; the muddy, oxygen-depleted seafloor was probably, on average, no more than … 展开
• Hay, O. P. 1908. The fossil turtles of North America. Carnegie Institution of Washington, Publication No. 75, 568 pp, 113 pl. 展开
CC-BY-SA 许可证中的维基百科文本 The 5 Biggest, Ancient Turtles That Ever Lived Were …
2024年4月3日 · The largest turtles ever discovered date back to the late Cretaceous, about 74 million years ago. The species Archelon ischyros was a …
24 Prehistoric Turtle Species: Giants of the Ancient World
2025年2月12日 · Every time you see a sea turtle or a giant tortoise, remember—they had prehistoric cousins that were way bigger, meaner, and stronger. Final Thoughts: Turtles Are …
The Giant Prehistoric Turtle From 80 Million Years Ago
2024年12月27日 · Archelon was a giant prehistoric turtle that lived during the Late Cretaceous period, around 80 to 66 million years ago. This sea turtle is the largest known turtle species to have ever existed. Let’s look at how Archelon …
Biggest turtle that ever lived had 10 foot shell with horns
2020年2月12日 · About five to 10 million years ago, giant turtles that dwarfed humans roamed freshwater swamps in South America. Researchers have …
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了解 80 万年前已知最大的史前乌龟 - Animals Around …
2024年12月27日 · 史前乌龟 Archelon 的完整骨架。截图来自《Archelon：有史以来最大的乌龟》来源：YouTube 频道：Earth 2.0. 第一个 Archelon 标本于 1895 年由乔治·雷伯·维兰德博士在南达科他州发现。
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Archelon: The Giant Sea Turtle of the Cretaceous …
Archelon ischyros, meaning “mighty turtle”, is a species of extinct sea turtle that lived during the Late Cretaceous period. It was first discovered in 1895 by Othniel Charles Marsh, a paleontologist, in the Pierre Shale Formation of South Dakota.
Ancient giant sea turtle with never-before-seen …
2022年11月29日 · Prehistoric giant marine turtles were once thought to have existed only in waters surrounding North America. With a newly discovered species found in Europe, scientists believe giant turtles may...
Giant Prehistoric Turtles: The Largest Ever | PetShun
2024年11月21日 · The largest turtle ever to have lived is the extinct marine turtle Archelon, which lived during the Late Cretaceous period, between 83.6 and 66 million years ago. The biggest …
Giant prehistoric turtle from Colombia chomped …
But the giant version appeared five million years after the dinosaurs vanished, during a period when giant varieties of many different reptiles—including Titanoboa cerrejonensis, the largest snake ever discovered—lived in this part …
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