Bones Show Dinosaurs Lived After Cataclysmic Meteor Strike

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Re: Bones Show Dinosaurs Lived After Cataclysmic Meteor Stri

BumbleBeeBoogie wrote:

URL: http://www.abqjournal.com/news/state/424459nm01-13-06.htm

Friday, January 13, 2006
Bones May Show That Dinosaurs Lived After Cataclysmic Meteor Strike
By John Fleck
Albuquerque Journal Staff Writer

Dinosaurs live today. Birds are dinosaurs -- closely related to both the T-Rex and those little predatory dinosaurs with the big claw on their feet.

And very large carnivorous predatory birds (up to 3 meters/10 feet high) still existed in some places until several million years ago:

http://hoopermuseum.earthsci.carleton.ca/flightless/phorus.htm

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To go one step further mammals developed from dinosaurs

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talk72000 wrote:

To go one step further mammals developed from dinosaurs

That isn't correct. Mammals developed from therapsids, which developed from pelycosaurs.

The entire line, from pelycosaurs to mammals, are known as the synapsids.

Reptiles/dinosaurs/birds are a completely different line, known as diapsids.

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Trivia: We synapsids ruled the world long before the Dinosaurs took over.

Some pre-dinosaur synapsid top predators:

Dimetrodon:
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/aper01b.gif

Gorgonopsid:
http://www.palaeos.com/Paleozoic/Permian/Images/Inostrancevia_and_Scutosaurus.jpg

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How do they know Scutosaurus had fur? I know of dinosaur fossils found with feathers or fur, but not permian fossils.

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Paaskynen wrote:

How do they know Scutosaurus had fur? I know of dinosaur fossils found with feathers or fur, but not permian fossils.

Actually, the furry attackers in the picture are the Inostrancevia, but to answer your question, they don't know.

As I understand it, they have fossils from just before the gorgonopsids that have skin with mammal-type sweat glands, but no fur.

And they have fossils from just after the gorgonopsids with fur.

Some people like to think of the gorgonopsids as having smooth skin, and some like to think of them as having fur, and it probably won't be resolved until someone finds the right fossil.

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The comet that killed off the dinosaurs wasn't necessarily large enough to immediately corrupt the entire planet, the initial blast likely killed all dinosaurs within, say a 20,000 mile radius or so, leaving the rest alive. The remainder of dinosaurs simply died due to the comet's dust blocking the Sun and killing all plant life, which eventually killed animal life due to starvation. If the fossils found are on the other side of the world from where the comet hit, then it makes perfect sense.

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Bobbles wrote:

The comet that killed off the dinosaurs wasn't necessarily large enough to immediately corrupt the entire planet, the initial blast likely killed all dinosaurs within, say a 20,000 mile radius or so, leaving the rest alive. The remainder of dinosaurs simply died due to the comet's dust blocking the Sun and killing all plant life, which eventually killed animal life due to starvation. If the fossils found are on the other side of the world from where the comet hit, then it makes perfect sense.

I think the article is claiming that some dinosaurs were still alive a million years after the dust settled.

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Bones Show Dinosaurs Lived After Cataclysmic Meteor Strike

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