Henry
spending too much on rocks
Member since January 2013
Posts: 452
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Post by Henry on Sept 27, 2017 17:07:37 GMT -5
Hello everyone. I haven't been on here for several months, as it has been REALLY busy at work. SOooooo, I perused eBay and found this object. I made somewhat of a calculated gamble, and purchased this piece for a decent price, with some negotiating. The seller's rating were long standing and outstanding. Unfortunately, zero information could be given on it's recovery location, possible age etc...due to it being from an estate sale. It's classification on the said page was rather generalized, but I will leave that out for the sake of analyzing the piece in an objective manner. So, can I make these assumptions?: 1)It was possibly organic as opposed to something that was "formed"' withing the confides within the earth. 2)it's now stone, due to the fact that it feels (for lack of better words) heavy and dense. 3)It's possibly fossilized since it APPEARS to have its minerals "replaced". 4)It's possibly "bone" due to the patterned structures that appears to be the remnants of cells. 5)It may have been part of a distal extremity as the shape isn't...symmetrical..? (Like a vertebra).It appears to have a anatomical joint. 6)It can be a dinosaur, or as young a 10,000 year old mammal??? Any input would be appreciated. :)Thanks! The reason I am asking these questions, is because my knowledge is VERY limited in terms of fossilization and fossils in general. Basically this was a buying gamble...albeit an inexpensive one.
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Thunder69
Cave Dweller
Thunder 2000-2015
Member since January 2009
Posts: 3,102
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Post by Thunder69 on Sept 27, 2017 19:30:05 GMT -5
Most definately bone.Looks like dino bone, the last pic has the agatized cell structure you wont find that on the younger bone .What kind I don't know..pretty cool though..John
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Post by catmandewe on Sept 27, 2017 20:26:12 GMT -5
I would call it bone also.
Tony
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Sept 28, 2017 4:14:15 GMT -5
Agree with bone. BTW, although it's become common to refer to the agate-filled structures as "cells," they are actually the permineralized voids that make up bone's "spongy" structure (i.e., trabeculae, Haversian canals and ostea) that provide the space for marrow and blood vessels. The walls of these canals and voids are what give bones their strength and flexibility. Bone cells, even in dinosaurs, would be too small to be visible without magnification. I've used the term "cells" too, but am trying to correct myself on that
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Henry
spending too much on rocks
Member since January 2013
Posts: 452
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Post by Henry on Sept 28, 2017 7:02:45 GMT -5
rocks2dust:i know. I work on an ambulance. Bone cells are called osteocytes and only be seen with a microscope. I call them cells, because they look like cells. LOLOL!
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Sept 28, 2017 8:52:53 GMT -5
Nice Dino bone..... Like the cell structure on it too... Looks like its part of a leg bone also... SCORE!!! Also looks like its from a tar pit.....Cali and Florida have a few...
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zekesman
Cave Dweller
Member since May 2016
Posts: 637
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Post by zekesman on Sept 28, 2017 15:47:24 GMT -5
Thread hijack! So they really are not bone correct? The organic material has been replaced at a cellular level with stone? Is it not really a sudomorph (sic) Vic
P.S. Awesome!
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Sept 28, 2017 16:31:35 GMT -5
So they really are not bone correct? The organic material has been replaced at a cellular level with stone? Is it not really a sudomorph (sic) Broadly speaking, correct. Pseudomorphic replacement covers a lot of types of mineralization where one material takes on the form of another. It is possible, though very rare, that some organic material can remain in fossil specimens. You might want to google "diagenesis" to better understand the process of bone to fossil. Fossil types produced by different processes than with this piece include casts (where there is no or little trace of preserved internal features) and compression (where the original material is altered by pressure, as in coal fossils). I agree, it's awesome.
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Post by accidentalrockhound on Oct 15, 2017 10:44:16 GMT -5
that is a cool looking bone. so what are your plans for it?
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fossilpeeps
off to a rocking start
Member since October 2017
Posts: 14
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Post by fossilpeeps on Oct 17, 2017 12:21:53 GMT -5
We specialize in fossils, and I can say with certainty that your "find" is some sort of fossilized dinosaur bone. The last image shows the fossilized marrow of the bone. Is there any way you can contact the seller and get more information on where it is from? It is from something fairly large. You have a real FIND there!!! Take good care of it! If you want to see some fossilized marrow my hubby is selling on our EBay site (The Dinosaur Den) go to: www.ebay.com/itm/GEM-DINOSAUR-BONE-DINO-FOSSIL-POLISHED-END-UTAH-22-/302398448242?hash=item46685a2272:g:RtUAAOSwDrNZRISkIf you contact my hubby through our EBay site, he MAY be able to help you evaluate it. He has over 20 years experience in dealing with dinosaur fossils.
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