New transitional pterosaur fossil

[juvenissun]

Ask any palaeontologist, the best record we have is of hard-shelled marine invertebrates like clams. The reason being that they have hard parts and are continually being buried by sediment settling out of the water column.

OK.

But, are wetland animal fossils the second most complete?
Look this question another way: if we found a coastal wetland sedimentary deposit, should we always expect abundant fossil records in it? If we could tie all coastal wetland deposits together in a time sequence, would we have chance to see a very good record of fossil evolution?

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Your answer reminded me about the transitional forms. How do the transitional forms look like on bivalves? I guess clams might be the best candidate to illustrate the idea of transitional form.

 

[juvenissun]

I fixed it.


They're not. Transitional fossils are common. I've posted eight new threads on examples of transitional fossils discovered in the last year, and that's not all of 'em.

If so, why don't you post another example of pterosaur transitional?

 

[juvenissun]

I fixed it.


They're not. Transitional fossils are common. I've posted eight new threads on examples of transitional fossils discovered in the last year, and that's not all of 'em.

OK, thanks.

The article did not mention a single word about depositional environment. Disappointing.

 

[Mallon]

OK.

But, are wetland animal fossils the second most complete?
Look this question another way: if we found a coastal wetland sedimentary deposit, should we always expect abundant fossil records in it? If we could tie all coastal wetland deposits together in a time sequence, would we have chance to see a very good record of fossil evolution?

Speaking from experience, yes. I work on dinosaurs in western Canada, which are generally preserved in coastal, lowland settings. Preservation of animals in the upland environments is much rarer because sediment influx is lower.

Your answer reminded me about the transitional forms. How do the transitional forms look like on bivalves? I guess clams might be the best candidate to illustrate the idea of transitional form.

Transitional forms are well represented among all hard-shelled marine inverts.

 

[Mallon]

If so, why don't you post another example of pterosaur transitional?

I can see where this is going. The old "x number of transitional fossils isn't enough" line neocreationists like to spout. Check out the rhamphorhynchoid line.

The article did not mention a single word about depositional environment. Disappointing

Maybe you should try digging up the original scientific paper, which discusses the depositional environment. C'mon juvie, you claim to be a scientist. You should know better than to trust a popular news article for the kind of details you're interested in.

 

[juvenissun]

I can see where this is going. The old "x number of transitional fossils isn't enough" line neocreationists like to spout. Check out the rhamphorhynchoid line.


Maybe you should try digging up the original scientific paper, which discusses the depositional environment. C'mon juvie, you claim to be a scientist. You should know better than to trust a popular news article for the kind of details you're interested in.

In general, where did birds get buried? Randomly all over the places or at some specific place depends on the type of bird? Did this flying dino die over the ocean? The rock definitely does not look like swampy sediments.

Sorry, I have thousands of questions about dinosaurs. But it is not my thing and I never spend any time on it.

 

[Mallon]

In general, where did birds get buried?

Lots of different environments. Depends on where they lived (or died). Archaeopteryx is found in lagoonal settings. Hesperornis is found in marine settings.

Did this flying dino die over the ocean?

What flying dino? Are you referring to the pterosaur in the OP? That's not a dinosaur. Again, if you're really a professor of geology, you should have access to the original article. Check it out.

 

[juvenissun]

Lots of different environments. Depends on where they lived (or died). Archaeopteryx is found in lagoonal settings. Hesperornis is found in marine settings.


What flying dino? Are you referring to the pterosaur in the OP? That's not a dinosaur. Again, if you're really a professor of geology, you should have access to the original article. Check it out.

To me, they are all dinosaurs. That is why I do not bother to check it out. There is no point for me to do that.

I think this thread is done. Thanks for the info.

 

[Mallon]

To me, they are all dinosaurs. That is why I do not bother to check it out. There is no point for me to do that.

Dinosaur - Wikipedia, the free encyclopedia

 

[philadiddle]

To me, they are all dinosaurs. That is why I do not bother to check it out. There is no point for me to do that.

Translation : "I am admitting to being willfully ignorant, yet I debate about these things anyways."

 

[juvenissun]

Translation : "I am admitting to being willfully ignorant, yet I debate about these things anyways."

Another translation: This is a showing of God's wisdom.

Be careful when people do this to you.