Bev Posted May 19, 2021 Share Posted May 19, 2021 Ordovician Stewartville member of the Galena Formation Southeast Minnesota, USA Yes, I know, there are no plants in the Ordovician! But doesn't this LOOK like a plant??? I was out hunting yesterday in the drizzle and found this rock. It had a pretty pattern, I didn't think much of it as it was probably just how the rock split and maybe minerals or dendrite or some such, but I liked the pattern so I brought it home. Upon closer examination it took to looking like a fan shaped plant, the side view seems to show a stem. All probably my imagination! LOL :-D But it does not hurt to ask if anyone has seen something like this before in the Ordo, right? Part of my love of fossil hunting is learning new things! :-D Overview Close up dry Close up dampened slightly for clarity "Stem" portion You guys always want to see the back of the rock... :-) Side of rock So, how crazy am I? LOL :-D The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Kane Posted May 19, 2021 Share Posted May 19, 2021 To my eye, it appears to be hackle fringe. 1 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Bev Posted May 19, 2021 Author Share Posted May 19, 2021 1 minute ago, Kane said: To my eye, it appears to be hackle fringe. What is "hackle fringe"? Never heard of that before. :-) The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Kane Posted May 19, 2021 Share Posted May 19, 2021 These occur as fractures in rock that can be ribbed or plumose. These form as the result of twisting and mechanical weakness in the structure of the rock. 3 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 19, 2021 Share Posted May 19, 2021 Hackle Fringe 3 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Bev Posted May 19, 2021 Author Share Posted May 19, 2021 7 minutes ago, Kane said: These occur as fractures in rock that can be ribbed or plumose. These form as the result of twisting and mechanical weakness in the structure of the rock. That was my original assessment too, just an interesting split rock. I do have a good imagination though! :-D Thanks for the new words to add to my vocabulary. :-D 4 minutes ago, Fossildude19 said: Hackle Fringe Thanks Tim for the link! Love learning new stuff! :-D 1 The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Bev Posted May 19, 2021 Author Share Posted May 19, 2021 We used to call these schist, if I remember right. Takes me longer to remember all the time. It is now in my Fossil Foolery teaching garden - yet another story along with fish eggs (oolite) and coral reef (sparkly crick rock as we call it around here). The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
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