Baby dinosaurs, new research

This 2009 video is called Dinosaur Eggs & Babies – Full Program.

From Science News:

Baby dinosaurs took three to six months to hatch

Fossils show dinos had incubation times more similar to reptiles than birds

By Laurel Hamers

3:10pm, January 23, 2017

Dinosaurs might live on today as birds, but they hatched like reptiles. Developing dinos stayed in their eggs three to six months before emerging, far longer than previously suspected, researchers report online January 3 in the Proceedings of the National Academy of Sciences.

With few clues to dinosaurs’ embryonic lives, scientists assumed that young dinosaurs shared modern birds’ swift incubation period, which ranges from 45 to 80 days for eggs in the size range of dino eggs. A reptile egg generally takes about twice as long to hatch as a bird egg of similar size, says lead author Gregory Erickson, a paleobiologist at Florida State University in Tallahassee.

But counts of growth lines on the teeth of rare fossilized dinosaur embryos from two species, Protoceratops andrewsi and Hypacrosaurus stebingeri, suggest a longer trajectory like that of reptiles, say Erickson and colleagues at the University of Calgary in Canada and the American Museum of Natural History in New York City. These lines, laid down daily on teeth, can be used like tree rings.

The longer incubation time might have worked against dinosaurs, Erickson says. Guarding a brood of eggs for many months could put parents at risk of attack. And a species hit by environmental catastrophe would have a harder time bouncing back.

Creationists and dinosaurs in the USA

This 2008 video from the USA has music from the Flintstones. It is about Sarah Palin, 2008 Republican party candidate for vice president, Donald Trump supporter and creationist, believing that dinosaurs and humans lived at the same time.

By Ed Mazza in the USA:

Creationist Ken Ham Gets Into Weirdest Twitter Fight With Washington Post Over Dinosaurs

Ham’s Noah’s Ark Encounter depicts dinosaurs living in cages.

01/02/2017 03:43 am ET

Creationist Ken Ham is steaming mad over a Washington Post article that claims his giant Noah’s Ark attraction teaches tourists that dinosaurs died in the biblical flood.

Ham, who believes the Earth is about 6,000 years old, fired off several additional tweets directed at the Post over the story.

Indeed, the Ark Encounter doesn’t claim all dinos died out during the flood. Rather, it features dinosaurs living in cages like the other animals.

His organization has said most dinosaurs died in the flood, which it claims took place 4,300 years ago.

“Those descended from the ones which got off the Ark eventually succumbed to the same sorts of pressures which cause extinction in animal populations today,” a 2011 blogpost said.

Scientists agree almost universally that dinosaurs were wiped out 65 million years ago, although researchers continue to study the specific causes. The American Museum of Natural History in New York notes that a comet or asteroid strike along with “massive volcanic eruptions and changing sea levels” all may have played a role.

Tyrannosaur Trix, from the USA to the Netherlands

This October 2016 video is the trailer of a film which will be soon on Dutch TV about how Tyrannosaurus rex Trix was found in Montana in the USA; and went from there to Naturalis museum in Leiden in the Netherlands.

This May 2016 video is about the excavation of Trix.

Dinosaur sculpture lessons for children

Tyrannosaurus rex with gypsum head and paw prints

In Leiden in the Netherlands, there is the exhibition of their newly acquired Tyrannosaurus rex Trix; before Trix will go abroad and come back forever in 2018.

Also in Leiden; from sculptor Simone van Olst (translated):

T.rex in town! Make this Christmas your own T.rex in plaster (stone). Come to the sculpture workshop on 21 or 28 December in the pop-up store in Leiden and go home with a tough dinosaur head or paw print. After the workshop you will get a nice goodie bag and an extra sculpture set to take home.

The workshop is in the Pop-up store (old V & D building), Aalmarkt 21 in Leiden. The workshops will be on Wednesday 21 and 28 December between 13.00 and 17.00. Every hour you can join. The rounds last for between a half hour and one hour. The cost is 10.00 euros per child, including material, a nice goodie bag and an extra sculpture set to make another dinosaur at home.

The workshop is suitable for children from 4 years on. It is desirable for the youngest children to be accompanied by an adult.

Not a dinosaur fan? Then it is also possible to create a nice Christmas pendant in gypsum.

Dutch tyrannosaur to Spain, France, Macau

This 15 November 2016 video is called TRIX: Tyrannosaurus Rex at Naturalis in Leiden, the Netherlands.

Translated from Unity TV in the Netherlands:

December 2, 2016

LEAD – T. rex Trix will also seen after the end of the exhibition T. rex in Town in Leiden in Barcelona, Paris and Macau before finally getting a place of honour in the renovated Naturalis museum in February 2018.

Trix can be visited until June 5 next year in the Pesthuis building in Leiden. After that, Trix, and parts of the exhibition, will be on tour in Europe and China. From November 8, 2017 to February 26, 2018 she will be on display at the Science Museum Cosmo Caixa in Barcelona. From June 11, 2018 to September 15, 2018 the skeleton will be in the Muséum National d’Histoire Naturelle in Paris. The 66 million year old skeleton will also travel to Macau, China, where it will be exhibited at the Macao Science Center.

The exhibition T. rex in Town is very well attended. Therefore Naturalis will seize the opportunity to introduce even more people to this particular fossil. Att the end of 2018 Trix will be back home in Leiden.

Feathered dinosaur’s tail discovery in Myanmar

This video says about itself:

Dinosaur’s Feathered Tail Found Remarkably Preserved in Amber | National Geographic

8 December 2016

An extraordinarily well-preserved dinosaur tail, with a fluffy covering of feathers, lies trapped within a piece of amber. The animal it belonged to would have lived about 99 million years ago. Researchers from China and Canada identify it as a juvenile of some type of coelurosaur, a group that includes birdlike dinosaur species that walked on two legs. But because the bones of the tail are flexible and not fused as in a bird’s tail, the specimen must be a terrestrial dinosaur rather than an actual bird. Lida Xing, first author of the study announcing the discovery, found the amber for sale in a northern Myanmar (Burma) market.

From in the USA:

This 99-Million-Year-Old Dinosaur Tail Trapped in Amber Hints at Feather Evolution

The rare specimen provides new insights into how feathers came to be

By Danny Lewis

December 8, 2016 12:37PM

Once thought to to be scaly-skinned beasts, many dinosaurs likely sported fantastical feathers and fuzz. Though early ancestors of birds, many pieces of their evolutionary timeline remain unclear. But a recent find could fill in some of these gaps: the tip of a fuzzy young dino’s tail encased in amber.

In 2015, Lida Xing, a researcher from the China University of Geosciences in Beijing, was wandering through an amber market in Myanmar when he came across the specimen on sale at a stall. The people who had dug it out of a mine had thought that the fossilized tree resin contained a piece of some sort of plant and were trying to sell it to be made into jewelry. But Xing suspected that the hunk of ancient tree resin could contain a fragment from an animal and brought it to his lab for further study.

His investment paid off.

What looked like a plant turned out to be a tip of a tail covered in simple, downy feather. But it’s unclear exactly what kind of creature it belonged to. Researchers took a closer look at the amber piece using CT scans and realized that it belonged to a true dinosaur, not an ancient bird. The researchers detailed their find in a study published in the journal Current Biology.

“We can be sure of the source because the vertebrae are not fused into a rod or pygostyle as in modern birds and their closest relatives,” Ryan McKellar, a researcher at the Royal Saskatchewan Museum and co-author of the study says in a statement. “Instead, the tail is long and flexible, with keels of feathers running down each side.”

Without the rest of the skeleton, it’s unclear exactly what kind of dinosaur this tail belonged to, though it was likely a juvenile coelurosaur, a creature closely related to birds that typically had some kind of feathers. And what’s most intriguing about this 99-million-year-old fossil are the feathers. In the past, most information on dinosaur feathers has come from two-dimensional impressions left in stone or feathers that weren’t attached to the rest of the remains.

This fossil could help settle a debate over how feathers evolved in the first place, says Matthew Carrano, curator of Dinosauria at the Smithsonian’s National Museum of Natural History.

See also here.

Oviraptor dinosaur discovery in China

This video from China ays about itself:

10 November 2016

A newly discovered species of dinosaur has been identified from an extraordinarily complete fossil almost destroyed by dynamite.

Preserved raising its beaked head, with feathered wings outstretched, in the mud it was mired in when it died 72 million years ago, it was one of the last surviving dinosaurs in Asia.

From Science News:

Dragon dinosaur met a muddy end

Feathered oviraptorosaurs surged at the end of the age of dinosaurs

By Meghan Rosen

9:00am, November 10, 2016

A bizarre new birdlike dino was part of an evolutionary extravaganza at the end of the age of dinosaurs. And it was a real stick-in-the-mud, too.

Construction workers blasted Tongtianlong limosus out of the Earth near Ganzhou in southern China. “They very nearly blew this thing to smithereens,” says paleontologist Stephen Brusatte of the University of Edinburgh in Scotland.

The find is one of six oviraptorosaur species discovered from roughly the same place and time — around 72 million to 66 million years ago. Like its feathered cousins, Tongtianlong walked on two legs and had a sharp beak. But each species had distinct skeletal quirks.

Tongtianlong, for one, had a bony, domelike crest on its skull. Oviraptorosaurs were churning out lots of new species during the last stage of the Cretaceous Period, Brusatte says. Tongtianlong was part of “the final wave of dinosaur diversification before the asteroid came down and ended everything.”

This particular fossilized animal lies in a bed of reddish-purple mudstone, preserved in an unusually awkward position: head stuck out, neck arched, wings outspread. It may have died after a desperate struggle to free itself from mud, researchers suggest November 10 in Scientific Reports. That’s actually how the dinosaur gets its name: Tongtianlong limosus is a mix of Chinese Pinyin and Latin meaning “muddy dragon on the road to heaven.”