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Mastodon Tusk?

mastodon mammoth tusk shregerlines

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#1 thulite

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Posted 01 February 2014 - 12:23 PM

Hello, I have a dear friend who has what is believed to be a mastodon tusk, it has been in his family for many generations.  He now has to place his mother into an assisted living facility and would like to sell it,  However we need to be sure of what this tusk really is.  It weighs 35 pounds, is 22 inches long and 5 inches wide.  Here are several images.  thank you for your insight, I appreciate your guidance.

 

Thulite

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#2 TyrannosaurusRex

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Posted 01 February 2014 - 01:30 PM

I believe you are correct.
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#3 thulite

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Posted 01 February 2014 - 01:39 PM

I believe you are correct.

Thank you for your input, I do appreciate your time.  Gosh not sure how to begin to sell this?  Any ideas?  It is sad that it needs to be sold but assisted living facilities are not cheap these days.  Warmest Regards to you.



#4 TyrannosaurusRex

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Posted 01 February 2014 - 05:36 PM

Try selling it in the members sales and trade section. Beautiful tusk by the way!
"The world is not in your books and maps. It's out there." -Gandalf

#5 jeremyh

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Posted 01 February 2014 - 07:03 PM

Try selling it in the members sales and trade section. Beautiful tusk by the way!

 

I agree try the sales thread here, or ebay.



#6 obsessed1

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Posted 01 February 2014 - 07:29 PM

The sales and trade area isn't available until a new member makes a set number of posts. One of the admins should be able to clarify this further.



#7 Fossildude19

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Posted 01 February 2014 - 09:28 PM

More than 10 less than one hundred. :)

Try selling it on Ebay. 

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#8 rylawz

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Posted 03 February 2014 - 01:23 AM

definitely go with ebay


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#9 rylawz

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Posted 03 February 2014 - 01:23 AM

elephas......


Post your Proboscidea!!!!!


#10 rylawz

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Posted 03 February 2014 - 01:27 AM

it cant be elephant though, the outer layer looks too odd. But the schreger lines are <90....


Post your Proboscidea!!!!!


#11 AeroMike

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Posted 03 February 2014 - 05:43 AM

Do you have any more info on it other then it has been in the family for "generations"? where did it come from/found?

 

Too bad the ends were hacked off but it sure is a large piece. I would sell it in an auction type setting, that way people can determine how much they'll pay versus you setting a price that may be too small or too great.

 

 

Good luck with your sale and I sure hope you can find the funds another way without selling this piece.


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#12 thulite

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Posted 03 February 2014 - 11:15 AM

Hi again and thanks for all the input. 

This tusk came from Alaska. My friend who is 65 years old tells me, his grandfather obtained it in Alaska when he lived and worked up there. It's been handed down in his family for generation after generation. He tells me, his grandfather obtained it well over 100 years ago. It's always been said to be Mastodon not Mammoth.

 

That's about all the history anyone knows about it. We don't know who or when someone cut into it. My friend says, it's always been that way for as long as he can remember.

 

Does anyone here know how one can determine if it's "for sure"  Mastodon or Mammoth? Are there any true experts who can determine such a thing? If necessary, we'd be willing to saw a tiny piece of it off to send out for testing.

 

Thanks,

Kellie.



#13 AeroMike

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Posted 03 February 2014 - 11:50 AM

The schreger lines are <90 and coupled with you stating that this came from Alaska makes me lean towards a mammoth tusk and not a mastodon tusk. Do a search on schreger lines and you will see the angles. It is very noticable in your last pic.

 

I am no expert though and I would like to see Rich or others who are more knowlable comment on this.

 


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#14 thulite

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Posted 04 February 2014 - 08:54 AM

I did a quick search and found this

American mastodons (Mammut americanum)  American mastodons ranged from Alaska and the Yukon to central Mexico, and from Pacific to...

So, I guess it's very possible this tusk was found in Alaska. 

Kellie



#15 thulite

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Posted 04 February 2014 - 08:57 AM

Unless I'm misunderstanding the "schreger lines" as ID, seems from what I have gathered, both the mastodon and mammoth tusks have the same angles. Elephant tusks do not. Maybe I'm wrong about that though?

 

Kellie.



#16 worthy 55

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Posted 04 February 2014 - 08:52 PM

This is a piece of tusk from my collection and has been ID as Mastodon.

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#17 thulite

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Posted 05 February 2014 - 09:00 AM

Where does one find a person who has the ability to make an identification that proves it to be mastodon or mammoth?

Anyone know?

 

Thanks for any help that can be provided.

Kellie.



#18 Fossildude19

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Posted 05 February 2014 - 09:38 AM

Have not seen Rich online here for a number of days - he is our resident mammal bone guy. 

You might try taking it to a local museum, or university geoplogical/paleontological dept. and ask someone there to look at it. 

Otherwise, you just may have to be patient for Rich  to pop back on here, or try to post it to the Forum's Facebook page. 

Or you could try to private message Rich. 

 

Failing that, I would look up mammoth or mastodon paleontologists via google. 

 

Good Luck. 

Regards,


Edited by Fossildude19, 05 February 2014 - 09:39 AM.

Tim
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#19 Al Dente

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Posted 05 February 2014 - 10:27 AM

Schreger angles for mastodon ivory is similar to modern elephant ivory. Here's a quote from "Observations on the microstructure of fossil tusks from the Charkadio cave (Tilos, Dodekanese, Greece), G.E Theodorou and K. Agiadi.

 

Schreger angles for Mammuthus primigenius is 73.21°, while the same mean for Loxodonta africana and Elephas maximus (undifferentiated) is 124.15°, and these values overlap between 90° and 115°. Also Fisher et al. (1998) measuring maximal angles on tusk specimens give a mean value of 87.1° for mammoths (M. primigenius, M. columbi and Mammuthus sp.) and a mean of 124.7° for mastodons (Mammut americanum).



#20 Auspex

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Posted 05 February 2014 - 11:10 AM

...measuring maximal angles on tusk specimens give a mean value of 87.1° for mammoths (M. primigenius, M. columbi and Mammuthus sp.) and a mean of 124.7° for mastodons (Mammut americanum).

Based on this information, you have Mammoth. :)


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