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Post by snowmom on May 14, 2014 6:15:39 GMT -5
so, I have been rock hunting on this one back road 2x now.. the first time I came away with the odd tubular small fossil in this photo.. it is silicated but shows come cell structure, especially at the ends. The other 3 came out with me yesterday. the two smaller ones seem to be agates, the larger of the two looks at first like just quartz, but when you look closer (can't see it here, not a good photo of this one) you see lacey plumes all over the place. The other is just loud loud loud plum color and glows in the sun. Of course it is cloudy here and early morning but I couldn't wait to show you... the biggest one seems to be a cycad trunk, almost completely intact and turned to silica/quartz/ agate... in shades of lavender and light purple. The screen on my computer does not show the depth of color in it.. and to think I almost left at on the road thinking it was probably just another (heavy!) piece of quartzite... then I saw all the little dimples and decided to check a little deeper. Now I think I know what jugglerguy's interesting piece of Huron rock is as well. both the smaller and larger pieces show similar structure when you look deep into them. You can bet I'm going back to pick more stuff up by the side of that road. Wonder if it would be possible to find out the source of the gravel used on it. I have also found several good puddingstones and other conglomerates there. hmmmmmmmmm
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Post by snowmom on May 14, 2014 7:20:42 GMT -5
this actually looks more like it than cycad photos I have been looking at. stigmaria root of a lycopsid tree, lepiodendron............. www.fossilmall.com/Western-Fossils/plants/wpf3/wpfossil3.htm if you click on the photo you can see a length wise view of it, the dimples don't seem to be arranged in spiral order, the way they would be on a cycad. I may have to send photos to a university to get it identified.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,676
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Post by Fossilman on May 14, 2014 9:36:15 GMT -5
Learn something new everyday...Thumbs up
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Post by jakesrocks on May 14, 2014 10:11:56 GMT -5
Really don't think it's a cycad. The dimples would also be diamond shaped. great find none the less.
How about a wet pic of the chipped section at top right of your pic ?
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Post by snowmom on May 14, 2014 10:45:33 GMT -5
when you click on the photo do my other photo bucket images come up or do I need to paste in another couple of links here? I just uploaded 3 new images of this fossil. New to all this. thanks!
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Post by snowmom on May 14, 2014 10:50:26 GMT -5
the dimples seem to have tiny crystals in them, don't know if they are dark naturally or if I did not do a good enough job cleaning them. those last photos are outdoors though it is cloudy here, but the pink/ lavender colors show much better. Kinda looks like a primitive brain, eh?
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Post by snowmom on May 14, 2014 10:57:24 GMT -5
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Post by snowmom on May 14, 2014 11:00:59 GMT -5
center of the bottom pic shows fresh fracture/chip, you can see it is silica/quartzy stuff. doing a search right now to find colleges or museums which might be able to help me identify it for sure.
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Post by mohs on May 14, 2014 12:08:56 GMT -5
you had me a primitive brain! good eye and detail good pictures rock'n rocks informative!
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Post by snowmom on Oct 22, 2014 5:46:03 GMT -5
palaeos.com/metazoa/porifera/irregulares2.htmlran across this cross section while searching something else and recognized it immediately! unanswered questions are an itch that you can't scratch... it is a relief to finally ID these things! I have some in limestone now as well.
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Post by snowmom on Oct 22, 2014 5:57:21 GMT -5
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