Connect with us

Planet Earth

Latimeria found, lived on our planet long before the dinosaurs

The unique fish Latimeria chalumnae, also called “Coelacanth”, lived on our planet long before the dinosaurs. They were long thought to have disappeared around the same time, about 65 million years ago.

However, after 1938, when the first Latimeria was officially discovered by chance, it turns out that the Latimerians did not die, but live in the deep waters off the east and south coasts of Africa.

Later, a second type of Latimeria was discovered in Indonesia.

The oldest fossils of Latimeria are 360 ​​million years old, and the “freshest” are 80 million years old. At the same time, it should be known that there were a huge number of Latimerians, at least 90 different species. They have been distributed worldwide, in sea and fresh waters.

Latimeria stand out against the modern fishes with their unusual fins, more like limbs, and a wedge-shaped tail. Their bodies are covered with solid scales, similar to armor.

Latimeria are pretty big fish. They can reach up to 2 meters in length and weigh up to 90 kg. At the same time, the fact that no one has found them for so long is amazing.

Even after this species has been officially recognized as being extant, the Latimeria is still rare and can only be found through specific monitoring in the waters where it has been observed.

Latimeria swim slowly and feed on cephalopods and deep-sea fishes. Often, they were discovered in groups in underwater caves. They live to about 48 years. Females give birth to live individuals after a long pregnancy of 13 months.

The first discovered Latimeria

The history of the Coelacanth is the cornerstone that supports the belief of many cryptozoologists that the mysterious Yeti, sea monsters, Chupacabra and other cryptids, actually exist, but simply have not yet been found.

At least two species of Latimeria, and perhaps more, have survived to this day without hiding at all. In addition, as mentioned above, Latimeria’s “freshest” fossils date back to 80 million years.

Just imagine this huge period of time during which archeologists have not found a single skeleton of Latimeria, even though they existed all this time.

According to some reports, there are populations of 300-400 individuals near the coasts of Africa and Indonesia. This comes after several years of increased illegal fishing. In the 1980s, the Latimerians were hunted (supposedly) because of the healing properties of their meat, and before that there were probably several thousand of them.

But if they were initially much smaller, they would probably never have been discovered at all, still considered extinct.

And the rare stories of local fishermen about “fish with a foot and a shell ” would be considered the same fiction as the stories of Africans about living dinosaurs.

Comments

Planet Earth

A previously unknown species of winged dinosaur very similar to a dragon discovered in China

Artistic representation of how the Wulong bohaiensis could have been. Credit: Erick Toussaint / San Diego Natural History Museum

A new species of dinosaur, a relative of Velociraptor, has shown scientists a little more about the origins of similarities and differences between the feathers of dinosaurs and birds.

The fossil belongs to a fierce dinosaur from the Cretaceous period called the “dancing dragon” who lived 120 million years ago in what is now China.

‘Dancing dragon’

Fossil of the Wulong bohaiensis. Credit: Erick Toussaint / San Diego Natural History Museum

Called Wulong Bohaiensis, It was a two-legged carnivore, a little bigger than a raven, that resided in an environment next to lakes. He had a scaly face, a mouth full of pointed teeth, a particularly dangerous toenail, and probably hunted small mammals, lizards, birds and fish.

He was gound in the Chinese province of Rehe, in northeastern China and his name translates as ‘dancing dragon’, as it refers to the articulated position in which his skeleton is.

Conserved in its entirety, the skeleton included soft tissues such as feathers, which appear together on its arms and legs, very similar to those of birds now. In addition to its four long limbs and two long feathers at the end of the tail, his body was covered by spongy filaments.

At the end of its long bone tail, fused in a rigid rod, there were 2 very long feathers.

«The Wulong specimen is a magnificent fossil. With the feathers and claws, I think it would have been beautiful and a little scary. I would love to see one alive, ”said leading research paleontologist Ashley Poust of the San Diego Natural History Museum.

Plumage differences between birds and feathered dinosaurs

A thorough examination of the bones showed that this Wulong individual was approximately one year old, that is, he was a young male still growing.

A new species of feathered dinosaur in China

This characteristic puzzled the experts, since usually the feathers appear in the adult stage. “Either the young dinosaurs needed these tail feathers for some function we don’t know, or they were cultivating their feathers very differently than most current birds”, Poust explained

Birds evolved from small feathered dinosaurs approximately 150 million years ago. But there were many feathered dinosaurs that didn’t fly, like Wulong.

Young Wulong seemed to have the plumage of an adult.

«It has long and isolated feathers that extend from its long tail. This is quite different from live birds and tells us that these decorative feathers preceded adulthood in dinosaurs. Of course, they may be using these feathers in a very different way from live birds too, ”said the expert.

Paleontologists are eager to understand many more plumage differences between birds and these feathered dinosaurs.

The finding was described in the scientific journal. The Anatomical Record.

Continue Reading

Planet Earth

Australia Firefighters Save the Only Wild Prehistoric Wollemi Pines on Earth

Olivia Rosane, EcoWatch
Waking Times

It looks as if firefighters in Australia have succeeded in saving a secret grove of prehistoric trees belonging to a species that dates back to the time of the dinosaurs.

The Wollemi pines once grew widely across Australia from more than 100 to 60 million years ago, The Washington Post reported. But now less than 200 remain in the wild, in a national park 125 miles northwest of Sydney.

Continue Reading

Planet Earth

“Huge anomalies” at the edge of the earth’s core

At the edge of the Earth’s core lie two gigantic blobs of ultrahot rock — and that’s about the extent to which geologists agree about them.

NASA PHYSICAL OCEANOGRAPHY. DISTRIBUTED ACTIVE ARCHIVE CENTER

The mysterious blobs are on opposite sides of the planet, one hidden beneath Africa, the other in the middle of the Pacific Ocean – the Quanta Magazine compared the ‘massive anomalies’ to Princess Leia’s iconic hairstyle (Star Wars).

Scientists discovered the blobs decades ago by mapping the interior of the planet, but have not learned much since.

Some ideas

There are two main schools of thought regarding the blobs, according to Quanta. The first camp holds that they’re merely massive clusters of hot plumes.

The other argues that the blobs — so big that they would drown the planet’s surface in a lava ocean over 60 miles deep — are their own distinct entity and not just a particularly warm region of the core.

Recent evidence supports the second camp: Quanta reports that scientists found traces of unique, ancient rocks and isotopes in magma that’s flowed upward from the blobs — materials nearly as old as the Earth itself and not found elsewhere on the planet.

Persistent Mystery

Still, great mystery still surrounds the deeply-buried hotspots. One theory is that they could be fragments of a Mars-sized object that crashed into the Earth.

University of Maryland seismologist Vedran Lekić told Quanta

It would be like having an object in the sky, and asking, ‘Is that the moon?’ And people are like, no. ‘Is that the sun?’ No. ‘What is it?’ We don’t know.

Source

Continue Reading
Advertisement

DO NOT MISS

Trending