Coelacanth - Wikipedia
Coelacanths (/ ˈ s iː l ə k æ n θ / ⓘ SEE-lə-kanth) (order Coelacanthiformes) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. [2] [3] As sarcopterygians, they are more closely related to lungfish and tetrapods (which includes amphibians, reptiles, birds and mammals) than to ray-finned fish.
Coelacanth | Smithsonian Ocean
Experts largely agree that coelacanths are primitive osteichthyans or bony fishes (as opposed to a cartilaginous fishes, such as sharks and rays), and that their closest living relatives are the primitive lungfishes (known from freshwaters of South Africa, Australia and South America), but they disagree on the exact placement of the coelacanth ...
The Coelacanth, The Gigantic Prehistoric Fish That's Still Alive Today
2021年12月18日 · An ancient fish once believed to be extinct, the coelacanth is a bottom-feeding creature that lives in the deep sea off the east coast of Africa. Its rediscovery was deemed "the most important event in the study of natural history in the 20th century."
Coelacanths - National Geographic
Coelacanths. Scientific Name: Latimeria. Type: Fish. Diet: Carnivore. Group Name: School. Average Life Span In The Wild: Up to 60 years. Size: 6.5 feet. Weight: 198 pounds. Size relative to a...
Coelacanths: the fish that 'outdid' the Loch Ness Monster
The fish was a coelacanth, one of a group that was thought to have gone extinct 70 million years earlier. But this one was alive. An unusual fish. On 22 December 1938, Marjorie Courtenay-Latimer, curator of the East London Museum in South Africa, saw a fish unlike any other. It had been caught in a trawl net, and at 1.5 metres long with a vivid ...
A new extinct species of coelacanth discovered thanks to the ESRF
1 天前 · Coelacanths are fish of which there are only two current species and which, with a few exceptions, evolved slowly over more than 400 million years. The fossils studied by the international team were discovered in clay nodules from the Middle Triassic period in Lorraine (France), near Saverne. The specimens, about fifteen centimetres long, are
The World’s Oldest “Living Fossil” Is Shaking Up Conventional ...
2024年9月12日 · The discovery of an exceptionally well-preserved ancient primitive Devonian coelacanth fish in remote Western Australia has been linked to a period of heightened tectonic activity, or movement in the Earth’s crust, according to the new study published today (September 12) in Nature Communications.
Ancient relative of 'living fossil' fish reveals that geological ...
2024年9月12日 · Coelacanths are large fish that evolved 410 million years ago. Once known only from fossils, they were thought to be extinct until a fisher in South Africa hauled one up in 1938. Biologists...
‘Living fossil’ genome unlocked - Nature
2013年4月17日 · The South African fisherman who pulled a prehistoric-looking blue creature out of his net in 1938 had unwittingly snagged one of the zoological finds of the century: a 1.5-metre-long coelacanth,...
Coelacanth Genes Mapped, "Living Fossil" Evolved Slowly
2013年4月19日 · Ancient fish's DNA evolved more slowly than that of other fish or animals. In the deep sea, slow and steady wins the race—and that proverb is reflected in the genes of the coelacanth...