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Post by parfive on Mar 30, 2019 2:38:42 GMT -5
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Post by fernwood on Mar 30, 2019 4:46:02 GMT -5
Very interesting. Amazing that this went undiscovered all these years.
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,722 
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Post by Fossilman on Mar 30, 2019 9:56:28 GMT -5
Read this the other day somewhere.... That's pretty close to where they found the famous "Sue" T Rex...…. Great hounding area for fossils and dino bones....
ND being one of my home states, I have to brag on it once in awhile... Hahahahaha
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Post by opalpyrexia on Mar 30, 2019 10:04:55 GMT -5
Both the science and the paleontologist's story are fascinating! We can be thankful that NASA's Near-Earth Object Program is looking out for us, at least on the side of Earth's orbit that faces outward from the Sun. It seems that a Sun-side program never gets funded. Here's NASA's site where they list objects with potential calculated impact probabilities. Fortunately, it appears that the probabilities are quite small (so far!).
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Post by RickB on Mar 30, 2019 10:10:40 GMT -5
Read this the other day somewhere.... That's pretty close to where they found the famous "Sue" T Rex...…. Great hounding area for fossils and dino bones.... ND being one of my home states, I have to brag on it once in awhile... Hahahahaha I've been to ND a few times as my brother lives in Wahpeton. We've traveled to the western part of the state and picked up pet wood and knife river flint. Rick B |
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,722
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Post by Fossilman on Mar 31, 2019 9:22:48 GMT -5
Read this the other day somewhere.... That's pretty close to where they found the famous "Sue" T Rex...…. Great hounding area for fossils and dino bones.... ND being one of my home states, I have to brag on it once in awhile... Hahahahaha I've been to ND a few times as my brother lives in Wahpeton. We've traveled to the western part of the state and picked up pet wood and knife river flint. Rick B Western and southwestern part of ND are the best for hounding fossil and rocks... I lived up north against the Canada border (In the boondocks) hahaha |
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Post by vegasjames on Mar 31, 2019 20:05:48 GMT -5
If a meteorite impact really supposedly wiped out the dinosaurs in part by blocking out light thereby inhibiting photosynthesis then the whole food chain would have been wiped out and we would not have survivors from the dinosaur age such as sharks and crocodiles. Some dinosaurs may have been destroyed this way but it makes no sense that all dinosaurs around the world died this way.
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Post by HankRocks on Mar 31, 2019 20:30:34 GMT -5
If a meteorite impact really supposedly wiped out the dinosaurs in part by blocking out light thereby inhibiting photosynthesis then the whole food chain would have been wiped out and we would not have survivors from the dinosaur age such as sharks and crocodiles. Some dinosaurs may have been destroyed this way but it makes no sense that all dinosaurs around the world died this way. I was thinking along the same lines. I suspect the global impact was somewhat less than the presentation indicates. It makes sense that the larger land based dinosaurs were severely impacted due to very reduced, but not quite eliminated food sources. Smaller creatures with smaller diets could have survived reduced food sources. It also makes sense that some plant life would spring back fairly quickly, even with reduced growth rate it could have supported smaller animals. Water based life forms probably took somewhat less of a hit so life there might there could have recovered at a faster rate. And as is the way with most everything these days, exaggerations get more notice. More under-stated presentations don't sell. |
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Post by mohs on Mar 31, 2019 21:41:44 GMT -5
not sure
But that was one big rock that slammed into the earth
Was it enough to wipe out the large lizards that dominated?
I think one of the interesting questions is:
Were dinosaurs warm or cold blooded?
Their type thermo-regulation may have made them more susceptible to drastic ecological change
Being that large mammals then ascended
does lend to the theory of re-evolved type of variation.....
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,722
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Post by Fossilman on Apr 1, 2019 9:40:30 GMT -5
The deeper the water, the better of survival....
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