Dinosaur and (Large) Mammal tracks side by side - video

[Bob]

http://www.youtube.com/watch?v=ADAhHjkrl74

Location - In 2012, an amateur fossil hunter found a slab of rock covered in ancient footprints on the campus of NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Analyzing it, it shows large and small mammal foot prints side by side with large bird-like and dinosaur foot prints.

Archeologists had believed prior to this that only SMALL mammals the size of mice/rodents were there, nothing bigger.. They now feel the largest mammal's tracks were something the size of a large badger.

The 110-million-year-old rock contained 70 tracks in total, some made by dinosaurs—sauropods, pterosaurs, theropods, and different sized mammal tracks.

Sauropods:


https://media.npr.org/assets/img/2016/04/26/argentinosaurus-076453d46ef96e10a75ddd9ac75880411c301c0a-s1500-c85.jpg

Theropods:


https://www.wired.com/images_blogs/wiredscience/2010/04/dino-feathers1.jpg

Pterosaur (scale shown):

https://news.nationalgeographic.com/news/2009/01/images/090107-pterosaur-picture_big.jpg

*that big bird gives me the willies..

The "Dig" site:


https://abm-website-assets.s3.amazonaws.com/laboratoryequipment.com/s3fs-public/embedded_image/2018/02/8434952953_12d59e7777_b.jpg

[Cidersomerset]

There has been a steady flow of discoveries over the past few years
whether hominoid , animal , bird , insect and just when they have found
the biggest dinosaur ever up pops another one.... A few of them...

http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-dark.png

'Extraordinary' fossil sheds light on origins of spiders

By Helen Briggs
BBC News 5/2/18

The arachnid - resembling a spider with a tail - lived about 100 million years ago
An "extraordinary" spider "cousin" trapped in amber for 100 million years is
shaking up ideas about the origins of spiders.
read more...
http://www.bbc.co.uk/news/science-environment-42945813

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Lost history of African dinosaurs revealed

By Helen Briggs
BBC News
29 January 2018
http://www.bbc.co.uk/news/science-environment-42860263

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New type of Jurassic dinosaur crocodile is discovered!

3 October 2017
The Melksham Monster roamed the ancient seas of Europe
A new prehistoric sea monster has been discovered - after
one of its fossils spent almost 150 years sitting in a museum

http://www.bbc.co.uk/newsround/41484453

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http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-dark.png

Chinese baby dragon: the new feathered species of dinosaur
10 May 2017

http://www.bbc.co.uk/newsround/39870979

[Navigator]

Well we know there were "mammal-like reptiles" long before any dinosaur ever existed that split into the two main classes of mammals and reptiles, so it seems totally plausible that there was a fairly full spectrum of mammals that came to exist during the "age of the Dinosaurs" - Reptiles were just the dominant class.

Thanks for the share! I love news bits that shove back in our faces how little we always actually know (as a species or scientific community), compared to what we think we know :)

[Cidersomerset]

I'm just looking through the headlines and another Dino article/theory is among them.....

http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-dark.png

Dinosaurs ‘too successful for their own good’

By Helen Briggs
BBC News
6 February 2018


https://ichef.bbci.co.uk/news/660/cpsprodpb/225C/production/_96369780_ab863f99-9ff0-4824-9798-809903230f98.jpg
T. rex was one of the largest terrestrial carnivores of all time

A study mapping how dinosaurs spread across the world shows they may have
been a victim of their own success. UK researchers believe they were already in
decline before the killer asteroid hit because they had occupied every habitat on
Earth.From their roots in South America, the dinosaurs migrated "in a frenzy of
movement to cover the planet".Hundreds of different dinosaurs appeared, from the
ferocious T. rex to the gigantic long-necked Diplodocus.But by the time the asteroid
struck, killing them off, they were starting to decline, as they had ran out of space
on Earth.

The theory, outlined in the journal, Nature Ecology and Evolution, reconstructs the
paths taken by the dinosaurs as they moved out of South America."They burst on
to the scene and really quickly moved to all parts of the Earth," said Dr Chris
Venditti of the University of Reading, a co-researcher on the study.

The dinosaurs were able to take advantage of a "blank canvas" left by the
extinction known as the Great Dying, just before they appeared, he said.
They quickly spread across the devastated planet, taking up every opportunity to
expand, with little competition for food, space or resources from other animals.
But towards the end of their reign, their progress slowed, as they became adapted
to almost every habitat on Earth. Only avian dinosaurs survived to become the
birds we know today.

"They'd filled the Earth, there was nowhere to move to and they were really
specialised in their habitat so they couldn't produce new species," said Dr Ciara
O'Donovan of the University of Reading. "It would have been the final nail in the
coffin for them apart from the birds."

The research is based on a statistical method to work out where every dinosaur and
its ancestors existed, in three dimensional space, on the globe.This gives a more
complete picture than studying fossil evidence alone, which is patchy and
incomplete.But not all researchers are convinced by the idea that the dinosaurs
were in decline before the asteroid hit Earth.

"Dinosaurs were continually diversifying all through the Cretaceous when the
continents had split into smaller units," said Prof David Martill of the University of
Portsmouth, who is not connected with the research."They were still diversifying at
the end of the Cretaceous just before the meteorite impact hit. "

Follow Helen on Twitter.

http://www.bbc.co.uk/news/science-environment-42945820

[Cardillac]

if one has read Michael Cremo's/Richard Thompson's very lengthy but incredibly researched book "Forbidden Archeaology" we homo sapien sapiens (as we're now referred to) have been on this planet looong before school-book history has stated;

according to Cremo/Thompson we had a co-existence with dinosauers; well, why not?- even in Texas they've discovered (according to book) human foot prints along side with dinos (not that they were walking together at the same time- they were obviously not lovers) in the same time perioded earth samples-

Larry