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'Pristine' Mammoth Skeleton Unearthed In Texas

Marty McEwen was digging in the dirt on his dad’s North Texas property in May when the excavator suddenly hit something. That something turned out to be a six-foot tusk — of a mammoth that had walked the earth tens of thousands of years ago.

Then, as if finding a mammoth tusk on one’s property wasn’t spectacular enough, McEwen and his dad, Wayne, soon discovered that it wasn’t just the tusk that was buried on their family’s land but the animal’s nearly complete skeleton — in pristine condition, no less.

The skeleton is believed to belong to a female Colombian mammoth that stood approximately 8 to 9 feet tall at the shoulder. It’s estimated to be 20,000 to 60,000 years old.

Experts called the skeleton — which is reportedly 90 percent complete — an “outstanding find.”

"We get a lot of mammoth fossils in Texas but it’s usually a tooth here, a tusk there or a piece of jaw," Ron Tykoski, a paleontologist with the Perot Museum of Nature and Science in Dallas, told Reuters. "This is unusual. It looks like it just laid down and died."

Though the McEwens could have kept or sold the fossilized remains, they reportedly decided to donate it to the museum.

"It needed to stay in North Texas where the local communities can enjoy it for a long time to come,” Wayne McEwen said in a written statement released by the museum.

Tykoski praised the family’s decision, calling the donation a “huge contribution” to science.

"This fossil is now part of the public trust, meaning scientists can describe it, study it, publish papers on it and display it from this time on,” Tykoski said in the statement. “Without their gift, this magnificent creature might have gone onto the auction block, never to be seen again. It would have been a huge loss for science and for the people of North Central Texas.”

The museum says it expects to have the mammoth skeleton in-house by September.

Paleontology: Oldest representative of a weird arthropod group

via: Ludwig-Maximilians-Universität München

Summary: Biologists have assigned a number of 435-million-year-old fossils to a new genus of predatory arthropods. These animals lived in shallow marine habitats and were far less eye-catching than related forms found in Jurassic strata.

Before they sank to the bottom of their shallow marine habitat and were fossilized some 435 million years ago, these arthropods preyed on other denizens of the Silurian seas — although they were not exactly inconspicuous, possessing a bivalved carapace and multiple abdominal limbs.

A group of researchers including LMU biologist Carolin Haug recently recognized these fossils as the oldest representatives yet discovered of an enigmatic and now extinct class of arthropods known as Thylacocephala, and assigned them to the new species Thylacares brandonensis.

"Where exactly the thylacocephalans belong among the arthropods is still a matter of intense debate," Haug says, but the new specimens shed light on the phylogenetic affinities of this problematic group of animals…

(read more: Science Daily)

images: Joachim Haug - LMU

Celebrate #FossilFriday with Pachycephalosaurus wyomingensis

Pachycephalosaurus, meaning “thick-headed reptile,” lived 66 million years ago during the Late Cretaceous Period and was the largest bone-headed dinosaur ever found, with 10 inches of bone crowning its rather small brain. This specimen was found in 1940 in Carter County, Montana. 

This fossil is located in the Museum’s Hall of Ornithischian Dinosaurs. 

560-Million-Year-Old Fossil Provides Earliest Evidence of Muscles

By Sci-News.com Paleontologists Dr Martin Brasier of the University of Oxford and the Memorial University of Newfoundland, Dr Alexander Liu of the University of Cambridge and their colleagues have uncovered the fossil of a muscle-bearing organism that thrived in what is now Newfoundland in Canada during the Ediacaran period, about 560 million years ago. According […] http://dlvr.it/6m2t9Y

Look, #FossilFriday is smiling at you!

This fossil is Diadectes phaseolinus, and it lived in the Early Permian, about 280 million years ago. The anthracosaurs that gave rise to the amniotes—true land animals with watertight eggs—probably looked something like Diadectes. Diadectes shows the general form of early amniote relatives: well developed limbs clearly capable of terrestrial locomotion, but a posture that is sprawling, not erect, like that of many later amniotes. What Diadectes ate is unknown, but it had complex, molarlike teeth and may have been a plant-eater. 

This fossil is located in the Museum’s Hall of Vertebrate Origins

Eventually, one simply has to make the pilgrimage. Frankly, I’m not sure how I managed to delay it for so long. For anyone with an interest in palaeontology - and especially for those with an interest in palaeoart - a visit to Crystal Palace Park is simply a must. More than that - it’s unavoidable. You will end up here, one day, staring up at Benjamin Waterhouse Hawkins’ concrete monstrosities. Here is the Land Where Ugly Life-Sized Dinosaur Models Began. And it’s quite wonderful.



Most readers will be familiar with the backstory (and David’s done it before), so I’ll try and be brief. Crystal Palace Park in London is named after the eponymous building, which was bought up and rebuilt here following The Great Exhibition in Hyde Park in 1851. A series of landscaped gardens were created around the Palace, with the Dinosaur Park being one of these. The models were created by Benjamin Waterhouse Hawkins and his team, with the scientific advice of the brilliant anatomist and evil bastard Richard Owen. Among the creatures created were the famous Iguanodon, Megalosaurus and Hylaeosaurus, but also a whole host of non-dinosaurs, including Palaeozoic amphibians and reptiles, Cenozoic mammals and, of course, marine reptiles.


The models have survived more-or-less intact into the present today, which is utterly remarkable given how exposed they all are. Replacement parts have been created here and there, but these are, for the most part, the same bizarre beasties that our Victorian forebears gazed upon. These days, the models have become icons of scientific progress - that is, of how far we’ve progressed since the 19th century. Of course, given how little the earliest palaeontologists had to go on, it’s quite surprising that the sculpts make any sense at all. But they do make some sense.


For example, although aware of their reptilian character, Owen was clever enough to realise that the dinosaurs must have had upright limbs like modern mammals and birds. Today, the ‘elephantine lizards’ he helped shape look laughably inaccurate, their nose horns the best-known example of how a simple anatomical error can result in a problem so glaringly obvious when writ large. However, at the time - with no clue as to just how different from today’s animals a large ornithopod was - these were pretty sensible and solid attempts. (Apparently, Owen also knew that the nose horn might be a mistake - but as any palaeoartist today will tell you, a little conjecture is completely necessary.)

All that said, we can only wonder what might have happened if Waterhouse Hawkins had Gideon Mantell as his consultant, as was originally intended. Supposedly, Mantell had already figured out that the dinosaurs didn’t look quite as Owen envisaged, particularly when it came to their limbs and posture. Unfortunately, ill health meant that Mantell had to turn the job down.


Although the Iguanodon often get all the attention, the park’s gigantic Megalosaurus is perhaps its most impressive model of all. Resembling a hulking croco-bear with enormously powerful and muscular limbs, it’s a world away from the svelte biped we envisage nowadays. The shoulder hump is a particularly curious feature, and some have speculated that it might be the result of Owen being privy to material now referred to Becklespinax (the hump, in reality, being from vertebrae nearer the hips).


Seemingly as if to further accentuate this model’s hopeless inaccuracy in the face of modern science, the Megalosaurus has now sprouted some foliage, which hangs limply down from its mouth. Or maybe Ken Ham broke in and wedged it in there.


The Hylaeosaurus, with its slightly sprawling posture, is closer to just looking like an oversized lizard than the other dinosaurs. It sports a replacement fibreglass head which, unfortunately, is rather difficult to photograph (hence the above ‘rear end shot’). Given how ankylosaurs have suffered in palaeoart over the years, it’s probably fair to say that this model isn’t so different from depictions that appeared 100 years later.


Unknown to (or unnoticed by) many people, the models are actually grouped together according to the time period in which the animals lived. From one end of the lake to the other, they progress from the Permian, through the Mesozoic, and then on into the Cenozoic. This way, all the Jurassic marine reptiles are grouped together, but Mosasaurus is sequestered elsewhere. The plesiosaurs are recognisable, although their necks bend and twist in impossible ways, while the large ichthyosaurs lack dorsal fins and have newt-like tail tips. It’s tempting to think that the exposed scleral rings are just another unfortunate inaccuracy, but they may have been an intentional anatomy lesson; such an interpretation is given more credence by the exposed ‘pavement’ of bones in the flippers (as above).


Just up from the plesiosaurs are a pair of marvellous, fearsome-looking Steneosaurus. The animal was a marine crocodyliform, and is known from some excellently preserved fossils. As such, Owen’s interpretations aren’t a million miles away from the modern view, although they owe a lot to the living gharial. The above photo also depicts what appears to be a coot (Fulica altra) nest under construction, carefully watched over by a grimacing, serpentine plesiosaur.


Back down in the Permian, the star attractions may be smaller, but they’re no less strange for it. The mutant toads hanging around by the lake are in fact labyrinthodonts, which were imagined to be entirely tailless. Their appearance is fascinatingly bizarre, as if someone grafted the megalosaur’s head on to a frog. Weirder still are a group of shelled dicynodonts, which Owen imagined to be turtle-like (unfortunately, I didn’t manage to get a decent photo). From the Permian end of the lake, one has a marvellous ‘time tunnel’ view through to the dinosaurs at the far side, and the lush (if not entirely appropriate) greenery that’s grown up around the models in recent years lends a suitably primordial feel. Er, if you ignore all the flowers.


Beyond the end of the tunnel, adjacent the boating lake, are positioned a handful of different Cenozoic mammals. (Many more were planned for the park originally, but funding ran out - a shame, as the proposed Glyptodon would no doubt have looked fantastic.) A Megaloceros family provides a visually striking focal point, and - because the path wraps around them - it’s possible to view them from any number of different angles, and take in all of the wonderful details. In the below photo, a pair of American tourists (I’ll get to them in a minute) are carefully examining the mighty Megaloceros male.




Around the corner we have Megatherium, another impressively large creation. The tree it’s hugging, in classic Megatherium/hippy fashion, is in fact the original Victorian specimen (now rather dead). According to signage in the park, the tree once grew enough to knock the sloth’s arm off, and it now bears a replacement limb. It’s difficult to photograph the Megatherium’s face, but it really is quite adorable, as I’m quire sure the real animal was. I mean, they’re just great big mounds of cuddly fuzz, if you think about it…and ignore the bloody great claws.


Speaking of adorable mammals…I was lucky enough to share my visit with none other than Chris DiPiazza of Jersey Boys Hunt Dinosaurs fame, along with Niroot and our mutual friends Nancy and Huseyin. Much joyous geekery ensued, as I’m sure you can imagine, and I’d like to sincerely thank one and all for the day. Cheers!


Mirror shades. Just typical. And finally…various (generally excellent) signs around the park show ‘contemporary’ (i.e. modern) depictions of the prehistoric creatures. Most of these aren’t too bad, but the ‘modern’ pterosaur is proper horrorshow. Check it out, unless you’re a pterosaur expert, in which case I’d advise closing this page and backing away from your PC at once. ‘Til next time!

GAAAAAAHHHHH

The greatest (and most complete) set of photographs from a place that, although I never have been, holds such magic for me.

Walking fish reveal how our ancestors evolved onto land

About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today’s amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries. Click to Open Full Story Source:: […] http://dlvr.it/6m4cPM

140828 LINE Update - Minhyuk
[English] Shanghai Boice! We will finally meet since our last concert in June. See you soon~

[Spanish] Boices de Shanghai! Nos encontraremos finalmente luego de nuestro último concierto en Junio. Nos vemos pronto~

Eng & Spanish Trans: CNBLUE.cl / http://www.cnblue.cl

*Take only with full credits / Tomar sólo con créditos completos*

This is a spectacular fossil club urchin from the Cretaceous near Talsint, Morocco. It’s about 3 inches across including the clubs. 

While most people are familiar with urchins having sharp spines different varieties had many types of ornamentation. When the urchin died these clubs an spines fairly quickly fall off prior to fossilization. The clubs where carefully removed from the surrounding rock, and remounted to the body of the urchin to create a life-like representation of the animal. You can see a number of impressions around the urchin from where some of these clubs originally were preserved. 

For sale at: http://www.fossilera.com/fossils/spectacular-fossil-club-urchin-morocco

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