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8 Fossil Discoveries That Changed Our Understanding Of Life On Earth


As we wind towards the yr’s finish we frequently discover ourselves fascinated by the long run, however generally it takes a uncommon nugget from the previous to make strides in academia. Take fossils, a dizzying range of actually, actually outdated stuff that by some means defied decay and decomposition to linger on in a file we are able to dive into and browse lots of of thousands and thousands of years into the long run.

Such treasures have been introduced to the world in 2024 which have modified the best way we see life on Earth, each within the evolution of animals alive at present and the mysterious existence of big “enigmas” from the previous. Here are eight of our favorites from the previous yr. So, which one is scoring a spot in your mantelpiece of goals?

A 47-Million-Year-Old “Alien Plant” That’s Even Stranger Than We Realized

the fossilized leaves of an old plant that doesn't fit in any existing plant family, the leaves are long and black against grey stone

“This fossil is uncommon in having the twig with connected fruits and leaves. Usually these are discovered individually.”

Image credit score: Florida Museum of Natural History picture by Jeff Gage

A peculiar cluster of fossils was retrieved from the Green River Formation in Utah again in 1969 – the 47-million-year-old leaves of an “alien plant” that was regarded as an uncommon member of the ginseng household. In 2024, the invention of extra alien plant fossils meant scientists have been in a position to revisit the curious botanical, revealing that it’s not ginseng in any respect.

The alien plant, as its Latin title nods to, is definitely even stranger than first realized, with traits we’ve by no means seen in trendy crops. It belonged to a household that not exists, and suggests there’s extra range within the fossil file of flowering crops than beforehand acknowledged. Read the complete story.

First-Ever Antarctic Amber Spills Secrets Of The Continent’s Cretaceous Forests

the first piece of fossil tree resin known as amber found in antarctica, looks like a tiny grain of jelly-like stone, very orange

“The analyzed amber fragments enable direct insights into environmental circumstances that prevailed in West Antarctica 90 million years in the past.”

Image credit score: Alfred Wegener Institute/V. Schumacher

A examine printed in November introduced that amber fragments had been recovered from Antarctica for the primary time, from an offshore sedimentary basin. The fossils imply we now have amber samples from each continent, and can present details about Antarctica’s forests, which have been as soon as dwelling to hardy dinosaurs.

The historic items of hardened tree resin, often known as amber, have been discovered inside a 5-centimeter (2-inch) thick layer of lignite (moist coal). Based on the age and composition of the lignite, the amber is estimated to be between 92 and 83 million years outdated, and got here from a swampy forest principally composed of conifers. 

As examine writer Dr Johann Klages of the Alfred Wegener Institute stated in an announcement, “Our aim now’s to study extra concerning the forest ecosystem – if it burned down, if we are able to discover traces of life included within the amber. This discovery permits a journey to the previous in one more extra direct approach.” Read the complete story.

Dinosaur-Era Bird Fills A 70-Million-Year Gap In The Evolution Of Bird Intelligence

An virtually good intermediate between Archaeopteryx and trendy birds was found with its cranium preserved in extraordinary three-dimension. To discover such an intact fossil fowl that dates again to the Mesozoic is sort of unparalleled, making the discover one of the important of its form, however that’s not all.

The dinosaur-era fowl is concerning the dimension of a starling, and is being described as a Rossetta Stone for understanding how and when the fowl mind advanced into the extremely clever processing machine it’s at present. By recreating its mind, scientists have been in a position to set up that its enlarged cerebrum suggests it was extra clever than the earliest bird-like dinosaurs, however that it lacked the developed cerebellum seen in trendy birds, which is related to advanced flight management. Read the complete story.

Frozen Mummy Reveals Woolly Rhinos Had A Hump On Their Back

a model of a woolly rhino showing it had a camel-like fat hump

The camel-like hump tells us historic artwork actually is an efficient approach of finding out historic life.

For the primary time ever, researchers uncovered the mummified stays of a woolly rhinoceros that had a giant outdated hump on the again of its neck (and sure, mummies are a sort of fossil). The hump was curiously absent in all different identified specimens of the Ice Age megafauna, and we don’t but know if it disappeared after childhood.

Big information within the type of a fatty bulge, then, and information that attests to the outstanding accuracy of historic cave work depicting rhinos with hunched backs. The most correct depictions have been made by a Paleolithic artist from Chauvet Cave, and it exhibits that historic artwork could be a good supply of knowledge on what life on Earth used to appear to be – exceptionally spectacular whenever you see my finest estimation of a camel. Read the complete story.

Fossil Footprints Reveal Big Theropod Dinosaurs Lived Close To The Antarctic Circle

a theropod footprint encrusted with sea life

“These quite a few tracks are the most effective proof but that these former polar environments supported giant carnivores.”

Image credit score: Anthony Martin

It was introduced that footprints made by giant theropod dinosaurs have been discovered on Australia’s south coast this yr, courting again to a time when the area was nonetheless related to Antarctica. The prints show that huge dinosaurs lived there when it virtually touched the Antarctic Circle, placing the world in near-total darkness for months at a time.

It is sensible that one thing would have eaten the prey we already knew lived there, however we didn’t understand how they survived the winter. Hibernation, migration, or making do with sparse sources are all attainable, however the footprints present that, a minimum of at instances, medium-sized prey was so considerable that enormous meat-eaters might make their dwelling within the space. Read the complete story.

Exceptional Fossils Spill The Secrets Of “Enigmatic” 10-Meter Sharks Found In Mexico

Exquisitely preserved fossils belonging to Ptychodus – an extinct group of giant sharks – were described this year, having been discovered in Mexico. They may help solve some centuries-old mysteries surrounding what these “enigmas” looked like, what they hunted, and how they fit into the shark evolutionary tree.

The finds encompass complete articulated specimens from the early Late Cretaceous, including a preserved body outline, which provides crucial information about Ptychodus’ mysterious lifestyle and enormous size. Overall, the researchers conclude that Ptychodus was “probably the largest durophagous shark that ever existed”. Read the full story.

Fossil Jaw Bones That May Have Belonged To A Prehistoric Sea Monster The Size Of A Blue Whale

the jaw bone fragments of possibly the largest marine reptile ever to live on earth next to some humans

“It is kind of outstanding to assume that big, blue whale-sized ichthyosaurs have been swimming within the oceans round what was the UK in the course of the Triassic Period.”

Image credit score: Dr Dean Lomax

A number of fragments of jaw bone might have claimed the title of largest marine reptile ever to have lived after a father and daughter fossil-hunting duo discovered fossils of a brand new species of ichthyosaur. The beast lived 202 million years in the past, and estimations of its dimension point out it was round 25 meters (82 toes) in size, making it similar to at present’s blue whales.

“This analysis has been ongoing for nearly eight years,” stated ichthyosaur knowledgeable Dr Dean Lomax in an announcement. “It is kind of outstanding to assume that big, blue whale-sized ichthyosaurs have been swimming within the oceans round what was the UK in the course of the Triassic Period. These jawbones present tantalising proof that maybe in the future an entire cranium or skeleton of one in all these giants could be discovered. You by no means know.” Read the complete story.

First Fossil Tapeworms Suggests They’ve Been Upsetting Stomachs For At Least 99 Million Years

The fossil tapeworm from mid-Cretaceous Kachin amber (~99 Ma; million years ago) and the comparison with the tentacle of an extant trypanorhynch tapeworm. A. Microscopic image of fossil tapeworm; B. Micro-CT image of fossil tapeworm; C. Scanning electron microscopy image of an extant trypanorhynch tapeworm.

“The fossil file of tapeworms is extraordinarily sparse on account of their mushy tissues and endoparasitic habitats, which tremendously hampers our understanding of their early evolution.”

Image credit score: NIGPAS

A tentacle trapped in amber turned the primary physique fossil of a tapeworm ever found this yr. The “distinctive” fossil suggests the parasites have been wreaking havoc on intestines since a minimum of the mid-Cretaceous, which means we are able to all relate – even in some small, gross approach – to the lived experiences of dinosaur-era creatures.

“The fossil file of tapeworms is extraordinarily sparse on account of their mushy tissues and endoparasitic habitats, which tremendously hampers our understanding of their early evolution,” Bo Wang, the lead researcher of a examine describing the invention, stated in an announcement. Now that his group has “reported the primary physique fossil of a tapeworm,” we are able to begin to attempt to piece collectively the meals internet that led to it getting trapped in tree resin.

Tapeworms are what’s often known as endoparasites, which means they reside inside their hosts (effectively, aside from once they’re hanging out of bears). Trypanorhynchs – the group to which the newly found worm belongs – are intestinal interlopers, clinging to their hosts’ guts and absorbing vitamins. As the specimen was present in a near-shore setting, it might be assumed that it was lurking within the bowels of an elasmobranch that was stranded by a tide or storm.

The unlucky fish might then have been scavenged upon by a land-based predator – maybe a dinosaur if the palaeoart is something to go by – which ripped its tentacle free, and allowed it to get trapped in resin. Read the complete story.

So, as you may see, we are able to admire the traditional Earth in all types of latest and surprising methods because of the fossilized bones, crops, and parasites lurking within the fossil file. And as for which one deserves a spot on the mantelpiece? Keep your triceratops cranium, I’m sticking with the worm.



Ella Bennet
Ella Bennet
Ella Bennet brings a fresh perspective to the world of journalism, combining her youthful energy with a keen eye for detail. Her passion for storytelling and commitment to delivering reliable information make her a trusted voice in the industry. Whether she’s unraveling complex issues or highlighting inspiring stories, her writing resonates with readers, drawing them in with clarity and depth.
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