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Author Topic:   Dino "Mummy" (not quite) sheds new light on skin
jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 1 of 17 (438273)
12-03-2007 4:32 PM


While not really a mummy, the sample does have mineralized skin over several section of the body. This may help give us clues about how the creature moved, more on what they looked like, even some hints about its environment. The hydrosaur was discovered in North Dakota.
Source

Aslan is not a Tame Lion

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Dr Adequate
Member (Idle past 284 days)
Posts: 16113
Joined: 07-20-2006


Message 2 of 17 (438277)
12-03-2007 5:13 PM
Reply to: Message 1 by jar
12-03-2007 4:32 PM


Cool.
But every silver lining has a cloud. We should have a sweepstake on how long it'll be before some creationist makes a Young-Earth style mess of this. As you note, it's not really a mummy, so they've got something to get wrong right there.

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reiverix
Member (Idle past 5818 days)
Posts: 80
From: Central Ohio
Joined: 10-18-2007


Message 3 of 17 (438284)
12-03-2007 6:20 PM
Reply to: Message 1 by jar
12-03-2007 4:32 PM


Preliminary studies are revealing a surprising side to these reptiles, suggesting that Dakota”even though roughly 35 feet (12 meters) long and weighing some 35 tons”was no slowpoke.
Is 35 tons a typo? Seems a bit weighty for a 35ft hadrosaur.

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jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 4 of 17 (438287)
12-03-2007 6:51 PM
Reply to: Message 3 by reiverix
12-03-2007 6:20 PM


Maybe a little. A Right Whale can grow to about 60 feet long but can weigh in at around 100 tons. Brody's run about 45 feet long and weigh in at around 25 to 30 tons. We will need to see if that gets revised.
Edited by jar, : No reason given.

Aslan is not a Tame Lion

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bluescat48
Member (Idle past 4189 days)
Posts: 2347
From: United States
Joined: 10-06-2007


Message 5 of 17 (438294)
12-03-2007 7:42 PM
Reply to: Message 2 by Dr Adequate
12-03-2007 5:13 PM


But every silver lining has a cloud. We should have a sweepstake on how long it'll be before some creationist makes a Young-Earth style mess of this. As you note, it's not really a mummy, so they've got something to get wrong right there.
I would say within 24 hours

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RAZD
Member (Idle past 1404 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 6 of 17 (438318)
12-03-2007 10:31 PM
Reply to: Message 1 by jar
12-03-2007 4:32 PM


Good Grief it's Daddy!
So is that the daddy of all mummies?
quote:
Preliminary studies of the 67-million-year-old hadrosaur, named Dakota, are already altering theories of what the ancient creatures' skin looked like and how quickly they moved, project researchers say.
Further investigations may reveal detailed information about soft tissues, which could help unlock secrets about the evolution of dinosaurs and their descendents, the scientists added.
For now, the team continues to examine the rare specimen, which included preserved tendons and ligaments, and to prepare scientific articles on the find for publication.
The 3-D preservation of the skin has also prompted the researchers to search for traces of unfossilized soft tissue in the hopes that it might yield protein.
This shows that the mineralized soft tissue of Sue was no aberration either. About the same age.
Thanks.

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JB1740
Member (Idle past 5944 days)
Posts: 132
From: Washington, DC, US
Joined: 11-20-2007


Message 7 of 17 (438365)
12-04-2007 9:56 AM
Reply to: Message 3 by reiverix
12-03-2007 6:20 PM


Is 35 tons a typo? Seems a bit weighty for a 35ft hadrosaur.
I'm not sure if it's a typo, but I suspect it's bunk. Most of the specimen remains unprepared at this time. I'm pretty sure they haven't isolated the femur, so good luck on the mass estimate. It's possible they have a solid mass estimate certainly, but I'm skeptical.
This shows that the mineralized soft tissue of Sue was no aberration either. About the same age.
Was there soft tissue preserved in Sue (Field Museum PR 2081)? I don't recall that. I know there has been some soft tissue on a Museum of the Rockies specimen. I cannot put my hand on my copy of the "Sue" monograph, but I don't remember anything about soft tissue in it. Could be, though (I wasn't ever reading that thing looking specifically for soft tissue stuff).
Either way, it's not an aberration. The MOR T. rex specimen described in 2005 was from the Hell Creek. Lots of "pieces" of fossilized skin have been found in the Hell Creek and Lance formations and most of the dinosaurs classically regarded as "mummies" come from the Lance/Hell Creek sequences. Preservation of this kind is rare, but not miraculous.

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macaroniandcheese 
Suspended Member (Idle past 3927 days)
Posts: 4258
Joined: 05-24-2004


Message 8 of 17 (438370)
12-04-2007 10:39 AM
Reply to: Message 4 by jar
12-03-2007 6:51 PM


what's a brody's?
also, note. whales are aided by bouyant forces. lets talk about some length and weight ratios of land animals intead. cause 1 ton per foot weight sounds like something that can't walk. albeit length and body size are not necessarily equivalent.

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jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 9 of 17 (438373)
12-04-2007 10:49 AM
Reply to: Message 8 by macaroniandcheese
12-04-2007 10:39 AM


Brody's
A fumble finger. Bryde's.
Sorry but fat fingers strike again.

Aslan is not a Tame Lion

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macaroniandcheese 
Suspended Member (Idle past 3927 days)
Posts: 4258
Joined: 05-24-2004


Message 10 of 17 (438376)
12-04-2007 10:58 AM
Reply to: Message 9 by jar
12-04-2007 10:49 AM


Re: Brody's
ah, another whale. see the above note.

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jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 11 of 17 (438377)
12-04-2007 11:00 AM
Reply to: Message 10 by macaroniandcheese
12-04-2007 10:58 AM


Re: Brody's
Sure. I have no argument there. As I said above, lets wait and see if it gets revised.
But we have few 35 foot long critters these days. If we take something like an elephant, this sucker would be the size of something more than four to six elephants and likely somewhat taller as well. An elephant can weight 4 tons. So something in the 16 - 24 ton range may not be out of line.
But we will learn more as the sample is studied.
Edited by jar, : add elefants

Aslan is not a Tame Lion

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reiverix
Member (Idle past 5818 days)
Posts: 80
From: Central Ohio
Joined: 10-18-2007


Message 12 of 17 (438382)
12-04-2007 11:14 AM
Reply to: Message 11 by jar
12-04-2007 11:00 AM


Weight
The reason I brought up the weight issue is because I just happened to be reading up on Sue the T Rex at the time.
Sue's Vital Statistics
Length: 42 feet (12.8 meters)
Estimated live weight: 7 tons (6.4 metric tons)

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jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 13 of 17 (438385)
12-04-2007 11:24 AM
Reply to: Message 12 by reiverix
12-04-2007 11:14 AM


Re: Weight
Sure. Reasonable. We are dealing with herbivore versus carnivore and as pointed out above, we are early in the process of examining the sample.
Personally, I wish the folk writing articles stuck with what they really know, but then I didn't write the article.
Who knows, maybe what the author heard was the folk talking about the weight of the sample itself. Maybe even including the plaster cast.

Aslan is not a Tame Lion

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JB1740
Member (Idle past 5944 days)
Posts: 132
From: Washington, DC, US
Joined: 11-20-2007


Message 14 of 17 (438386)
12-04-2007 11:26 AM
Reply to: Message 13 by jar
12-04-2007 11:24 AM


Re: Weight
Personally, I wish the folk writing articles stuck with what they really know, but then I didn't write the article.
The actual scientific paper hasn't been published yet. This is all based on a press release for a TV show. Grain 'o salt, folks...

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jar
Member (Idle past 393 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 15 of 17 (438388)
12-04-2007 11:28 AM
Reply to: Message 14 by JB1740
12-04-2007 11:26 AM


Re: Weight
Grain 'o salt, folks...
Exactly, but speaking of salt ...

Aslan is not a Tame Lion

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