pporky
fully equipped rock polisher
Member since May 2007
Posts: 1,932
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Post by pporky on Sept 22, 2012 7:07:39 GMT -5
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Post by rockrookie on Sept 22, 2012 7:30:48 GMT -5
nice !! how about , just a face polish ?
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,718 
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Post by Fossilman on Sept 22, 2012 12:10:52 GMT -5
Leave it be my friend....Awesome!
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,492
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Post by Sabre52 on Sept 22, 2012 16:12:14 GMT -5
*L* Got to admit those crinoid columns, when cut right, do look like annelid worms and all kinds of weird stuff. I've got a slab pic of crinoidal limestone at the mimetolith website that looks like a chess piece. I hate to chop up the ones with cool pics for cabs....Mel
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Post by deb193redux on Sept 22, 2012 16:47:48 GMT -5
i think it is a stem and not a worm. soft tissye does not fossilize like that.
a cab that uses most of the object to good effect is my thought
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pporky
fully equipped rock polisher
Member since May 2007
Posts: 1,932
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Post by pporky on Sept 23, 2012 0:49:24 GMT -5
i'm no expert on fossils but to me it really looks like a earth worm thats sliced in half longways even with that funny fat piece 1//2 inch from end.
Daniel I have opalised piece of squid tentacle which is also soft tissue.
Any help with Id would be appreciated. Bill
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,492
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Post by Sabre52 on Sept 23, 2012 12:08:16 GMT -5
Bill, 100% and definitely fossilized crinoid columns which can have a lot of different looks depending on how they are cut through by the saw. Generally, soft tissue animals are fossilized only as imprints as there is no hard skeletal structure to be replaced. Only part of a squid tentacle or worm hard enough to be replaced by minerals would be the horny claws or mouthparts of the worms. Soft body parts would leave an imprint. Here's an example of crinoidal limestone from China that I could find after a quick search. As you can see the skeletal remains are very similar to your example and show a lot of different forms some of which have that worm like look to them.....Mel  |
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Post by deb193redux on Sept 23, 2012 13:18:22 GMT -5
i think if preserved anaerobically while the matrix petrified, that soft tissue can result in a casting. more often the hard parts, which don't need just the right conditions to preserve, become fossils.
but in this case you do have a stem - not a worm
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pporky
fully equipped rock polisher
Member since May 2007
Posts: 1,932
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Post by pporky on Sept 23, 2012 16:35:24 GMT -5
Thanks fellows a stem it is the pic helped a lot very nice piece by the way
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Sept 26, 2012 23:04:21 GMT -5
Here is a cutaway of a cinoid stem in an arrowhead I found. Definitely what you have. Attachments:
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carloscinco
fully equipped rock polisher
Member since July 2008
Posts: 1,639
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Post by carloscinco on Oct 6, 2012 15:19:37 GMT -5
That stem in the arrowhead must have moved its rarity up several levels. Really neat!
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itsandbits
freely admits to licking rocks
Member since March 2012
Posts: 825
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Post by itsandbits on Oct 6, 2012 19:57:37 GMT -5
what an artifact; the arrowhead, and a nice slab too
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garock
fully equipped rock polisher
Member since February 2006
Posts: 1,168
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Post by garock on Oct 18, 2012 8:57:06 GMT -5
the arrowhead is so cool ! I have hunted for crinoids and plates on Dale Hollow Lake in Tennessee and was always on the look for artifacts. Never found any ! Yet !
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