|
Post by 150FromFundy on Dec 27, 2013 17:55:06 GMT -5
I need some help from a “bonehead” with a little experience and a good eye. Laura brought me two small slabs of what was described as dino bone that had “good cell structure and would take a good polish”. She was a little sceptical when it arrived and I was a little sceptical when I opened it. The slabs are circular and about 2” to 2.5” in diameter. There appears to be some concentric rings which make it look a little more like a slice of petrified wood than a slice of bone, but then again I am not a “bonehead”. There’s an overall photo and a close up photo of each of the slabs. Opinions are welcome and appreciated. Thanks. Darryl. Slab 1 Closeup 1 Slab 2 Closeup 2
|
|
QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,623
|
Post by QuailRiver on Dec 27, 2013 18:08:36 GMT -5
I'm no expert on fossils by any means but this looks more like a fossilized mammal bone to me than a dinosaur bone. Where is it supposed to be from?
|
|
Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,463
|
Post by Sabre52 on Dec 27, 2013 20:14:46 GMT -5
Yeah, I have a lot of dino bone and your specimens doesn't look like any I have. Does look like bone or wood of some kind and I'd lean towards a mammal bone too, though not whale.....Mel
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,158
|
Post by jamesp on Dec 27, 2013 23:12:53 GMT -5
Could be tusk.
|
|
Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
|
Post by Fossilman on Dec 28, 2013 0:38:58 GMT -5
Not dino bone.....Mammal bone has bigger cell structure too,might be tusk or a different kind of petwood.....
|
|
|
Post by radio on Dec 28, 2013 10:07:42 GMT -5
I'm going with wood of some type. I cut and polish a lot of Dino bone and seen some weird stuff, but never seen any that resembles the above pic
|
|
|
Post by Peruano on Dec 28, 2013 13:49:55 GMT -5
I'm always amazed at the beauty and patterns of "dino" bone, and far from an expert as to what the entire spectrum should be but. . . I'd admit to some knowledge of what mammal, reptile, etc. bone might look like, and I'll go for this being a plant stem (i.e. petrified wood). While some vertebrates show annual rings, they are seldom as depicted in this rock. Teeth and tusks sometimes show annuli, but I'd still go for plant origin. JMHO. Tom
|
|
|
Post by 150FromFundy on Dec 28, 2013 20:08:51 GMT -5
It turns out these "bones" are from the Morrison formation in Utah. That doesn't exactly narrow things down though, does it?
Darryl.
|
|
|
Post by gr on Dec 28, 2013 21:39:57 GMT -5
My first impression was pet wood but some have added new thoughts that I would subscribe to like, mammal bone or possiable plant stem
|
|
elementary
fully equipped rock polisher
Member since February 2006
Posts: 1,077
|
Post by elementary on Dec 30, 2013 12:08:00 GMT -5
In the first picture, there are some interesting structures in the middle of the slab just to the left of the whitish center, where the dark brown is located. In the third picture, in the dark brown area, there are additional patterns that look similar. Can you take a zoom shot of those two regions of darker color? Your zooms tend to be in the lighter regions.
Also, can you take a shot of the "rind" of your slab? I'd be interested in seeing what patterns or textures are there.
Thanks,
Lowell
|
|