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Post by oregon on Sept 7, 2016 13:45:42 GMT -5
 Spent a few days out Dendrite Butte way (central OR, north of Hampton a fair bit) walking around looking for limb casts... Lots of agate chips and a few interesting casts, but also stumbled on this nice hunk of jasper replaced Wood. So black with lichen, who knows how many folks had walked over it! Anyway there's a nice wood grain on the outer, you see hints of agate/opal when I sawed the end off, it has great interesting features, I was initially thinking the obvious brown arc/distinct border was the edge of the wood, and the other jasper-agate-y bit was matrix. But that part also shows nice wood texture on the outside, so my son suggested It might be bark? Any input from the experts? Firs,pines etc out here have pretty thick bark... (not much sun today, so pics are kind of flat) Whatever it is, certainly one of the more 'different' pieces of wood I've cut. update: I had a friend at the University take it in and ID it as a cycad specimen. The Museum wanted it as a specimen, but it still lives on my display for a while. Srry, photobucket pics are gone, small Google thumbnail. |
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Post by Pat on Sept 7, 2016 13:48:58 GMT -5
Interesting! Would like to know its history.
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bsky4463
fully equipped rock polisher
Member since September 2013
Posts: 1,696
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Post by bsky4463 on Sept 7, 2016 19:58:44 GMT -5
That is funky-cool...great haul. Cheers
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Sabre52
Cave Dweller 
Me and my gal, Rosie
Member since August 2005
Posts: 20,497
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Post by Sabre52 on Sept 7, 2016 20:07:34 GMT -5
Looks like maybe the tree had been attacked by fungal or bacterial infection before it was petrified. Extremely cool specimen!!..Mel
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Post by Pat on Sept 7, 2016 20:57:51 GMT -5
Does bark ever fossilize?
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Post by accidentalrockhound on Sept 8, 2016 0:21:08 GMT -5
Way cool colors great find!
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Post by oregon on Sept 8, 2016 0:42:54 GMT -5
Does bark ever fossilize? That's what I was wondering... anyone? |
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,359
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Post by quartz on Sept 8, 2016 1:11:18 GMT -5
I would think any wood buried in an anaerobic environment could possibly be petrified over time, bark included. No matter what, it's a very nice piece.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Sept 8, 2016 9:30:08 GMT -5
Does bark ever fossilize? That's what I was wondering... anyone? Yes it does,I have a piece of petwood material that is bark,that fossilized...Found it at the "Hollywood" Ranch in Sweet Home,OR.... I have photos of it here somewhere..... Larry that's the one I was telling you about-"With my pick in mid air and seen it,but was to late" and swung at it anyhow..." I will find the photos... |
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723
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Post by Fossilman on Sept 8, 2016 9:37:42 GMT -5
Sorry Oregon,don't want to "Jackknife" your post........Here is the wood... Finally after a bit of work and time,I finished this piece......I dug it up at Hollywood Ranch a month ago.... Broke a few pieces off of it(yes I spiked it),found most-glued the pieces back together..Couldn't find the other parts,but that's ok... It still has the bark on it..........I washed it in "Dawn" dish soap,than dipped it in polyurethane,dried it and is on display in my collection...   |
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Post by roy on Sept 8, 2016 10:29:14 GMT -5
wow nice find love the colors in it
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70karmann
starting to spend too much on rocks
Member since February 2011
Posts: 190
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Post by 70karmann on Sept 8, 2016 20:22:21 GMT -5
That I like.
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Post by Garage Rocker on Sept 8, 2016 20:39:08 GMT -5
That's one wicked looking rock. I like!
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Post by toiv0 on Sept 8, 2016 23:10:50 GMT -5
We used to find petrified bark between Albuquerque and Farmington you couldn't tell from fresh.
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Post by oregon on Oct 9, 2019 14:23:46 GMT -5
Just had this Identified as a Cycad Specimen, updated post.
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Post by fernwood on Oct 9, 2019 15:06:29 GMT -5
Do you have any better photos? Would love to see it.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Oct 10, 2019 2:28:04 GMT -5
Just had this Identified as a Cycad Specimen, updated post. Been away all day and I agree it is Cycad - but a section of a female Cycad cone with seeds, rather than wood or bark. I'd not heard of cycad in that area - mostly fossils of more temperate plants. There are layers of the Clarno Formation that go through the area (including Hampton Butte to the south) and Cycads have been found in upper Eocene layer of the Clarno Formation elsewhere. Nice find! |
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Post by oregon on Oct 10, 2019 11:05:11 GMT -5
Been away all day and I agree it is Cycad - but a section of a female Cycad cone with seeds, rather than wood or bark. I'd not heard of cycad in that area - mostly fossils of more temperate plants. There are layers of the Clarno Formation that go through the area (including Hampton Butte to the south) and Cycads have been found in upper Eocene layer of the Clarno Formation elsewhere. Nice find! I'll attach some better pics. I don't see any of the cone texture, and the piece itself is more like a section from a cylindrical wall rather than a spheriod wall - (ie, it's only curved in one dimension) but it does certainly look like other cone fossils once you start googling... It was a surface find, near the 'site a' part of Dendrite Butte. Thanks for the info.
light is a bit flat this morning, and I'll have to see if I can upload photos after posting, the upload picture button never seems to be present when I reply?!   |
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Post by oregon on Oct 10, 2019 11:12:04 GMT -5
Also an interesting read about the Cycad national monument....
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Post by MsAli on Oct 11, 2019 5:19:26 GMT -5
That is a beautiful specimen
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