gwestbrook Posted March 28, 2018 Share Posted March 28, 2018 Found this somewhat flattened Brach (Derbyia crassa) in the Pennsylvanian age Finis Shale formation at the Lost Creek Reservoir borrow pit near Jacksboro, in Jack County, Texas a couple of weeks ago. It's not perfect but I love fossils that are still in the matrix and that aren't pristine and show signs of predation and deformation from the weight of the overlying matrix. 1 Link to comment Share on other sites More sharing options...
Ludwigia Posted March 28, 2018 Share Posted March 28, 2018 Then you certainly got what you were looking for. Good size too! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
gwestbrook Posted March 28, 2018 Author Share Posted March 28, 2018 2 hours ago, Ludwigia said: Then you certainly got what you were looking for. Good size too! Thanks! Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted March 28, 2018 Share Posted March 28, 2018 Very nice brachiopod. I'm very fond of brachiopods. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
izak_ Posted March 28, 2018 Share Posted March 28, 2018 I love brachs, nice find! Link to comment Share on other sites More sharing options...
Peat Burns Posted March 28, 2018 Share Posted March 28, 2018 Link to comment Share on other sites More sharing options...
BobWill Posted March 28, 2018 Share Posted March 28, 2018 That's a real beauty Gary. Those are so thin and fragile it's rare to find them intact in the shale. Yours being in the limestone is probably all that's holding it together. Ludwigia is right about the size too. That's usually what I go by to tell Derbia crassa from D.Jacksboroensis so I'm wondering what's a better way to tell them apart. Both are on the list for Lost Creek spillway and I have what I think are some of each from there but I read where the latter which are larger are more common there in the Cisco Group and the former common in the Canyon Group of the Bridgeport and Brownwood areas. This according to Mark McKinzie but he left out any other details for telling them apart. 3 Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 28, 2018 Share Posted March 28, 2018 Very cool brachiopod. Some fossils tell stories, ... and some more than others. This one looks like it might have an epic yarn to spin. Thanks for showing us. Regards, 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...
gwestbrook Posted March 28, 2018 Author Share Posted March 28, 2018 9 hours ago, Tidgy's Dad said: Very nice brachiopod. I'm very fond of brachiopods. Thanks! Link to comment Share on other sites More sharing options...
gwestbrook Posted March 28, 2018 Author Share Posted March 28, 2018 2 hours ago, Fossildude19 said: Very cool brachiopod. Some fossils tell stories, ... and some more than others. This one looks like it might have an epic yarn to spin. Thanks for showing us. Regards, Thanks! That's what I like most about those types of fossils. Link to comment Share on other sites More sharing options...
gwestbrook Posted March 28, 2018 Author Share Posted March 28, 2018 3 hours ago, BobWill said: That's a real beauty Gary. Those are so thin and fragile it's rare to find them intact in the shale. Yours being in the limestone is probably all that's holding it together. Ludwigia is right about the size too. That's usually what I go by to tell Derbia crassa from D.Jacksboroensis so I'm wondering what's a better way to tell them apart. Both are on the list for Lost Creek spillway and I have what I think are some of each from there but I read where the latter which are larger are more common there in the Cisco Group and the former common in the Canyon Group of the Bridgeport and Brownwood areas. This according to Mark McKinzie but he left out any other details for telling them apart. Thanks, Bob! I just compared it to the photos I could find of the two. It looked closest to the crassa species, so that's the one I picked. I know I could be wrong though. Yes, the shell is very thin for sure. I could tell as I was cleaning around it. There are some edge pieces missing. The deposits that are still on it are very hard and I figured if I tried to remove them mechanically or chemically it might damage it even more, so I left what's there for that reason. 5 hours ago, Peat Burns said: Thanks! Best one I've found at that site. I know others have found better though. But, I like it a lot. Link to comment Share on other sites More sharing options...
gwestbrook Posted March 28, 2018 Author Share Posted March 28, 2018 3 hours ago, BobWill said: That's a real beauty Gary. Those are so thin and fragile it's rare to find them intact in the shale. Yours being in the limestone is probably all that's holding it together. Ludwigia is right about the size too. That's usually what I go by to tell Derbia crassa from D.Jacksboroensis so I'm wondering what's a better way to tell them apart. Both are on the list for Lost Creek spillway and I have what I think are some of each from there but I read where the latter which are larger are more common there in the Cisco Group and the former common in the Canyon Group of the Bridgeport and Brownwood areas. This according to Mark McKinzie but he left out any other details for telling them apart. Thanks for the information and the help with it, Bob! Much appreciated. Link to comment Share on other sites More sharing options...
MeargleSchmeargl Posted March 28, 2018 Share Posted March 28, 2018 Looks like it's made of chocolate! Mmm, now I want a Hershey's. Neat brach! I also have a soft spot for them (though not as pronounced as my trilo spot). Every single fossil you see is a miracle set in stone, and should be treated as such. Link to comment Share on other sites More sharing options...
Heteromorph Posted March 28, 2018 Share Posted March 28, 2018 Nice brachiopod! It must have quite an interesting story. Link to comment Share on other sites More sharing options...
gwestbrook Posted March 29, 2018 Author Share Posted March 29, 2018 19 hours ago, Heteromorph said: Nice brachiopod! It must have quite an interesting story. Yes, sir! I bet you it does too. Link to comment Share on other sites More sharing options...
gwestbrook Posted March 29, 2018 Author Share Posted March 29, 2018 Just now, EchieMysticTx61 said: Yes, sir! I bet you it does too. Thank you! I do love trilos too! Just so darn far from any good sources and I have a limited travel budget. Wish I could hunt for those more. Link to comment Share on other sites More sharing options...
Monica Posted March 29, 2018 Share Posted March 29, 2018 Beautiful find! (I like fossils left in matrix, too - they make for great display pieces!) Link to comment Share on other sites More sharing options...
ynot Posted March 30, 2018 Share Posted March 30, 2018 Nice fossil! Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
stats Posted April 2, 2018 Share Posted April 2, 2018 Very nice... Derbyia is one of my favorite brachiopods. They are fairly common in the Permian of Kansas. They are always flat. Here's a couple pictures of the ones I have found. Cheers, Rich Link to comment Share on other sites More sharing options...
gwestbrook Posted April 2, 2018 Author Share Posted April 2, 2018 14 hours ago, stats said: Very nice... Derbyia is one of my favorite brachiopods. They are fairly common in the Permian of Kansas. They are always flat. Here's a couple pictures of the ones I have found. Cheers, Rich Awesome! Very nice! Thanks for sharing. Link to comment Share on other sites More sharing options...
gwestbrook Posted April 2, 2018 Author Share Posted April 2, 2018 On 3/29/2018 at 10:07 PM, ynot said: Nice fossil! Thank you! Link to comment Share on other sites More sharing options...
gwestbrook Posted April 2, 2018 Author Share Posted April 2, 2018 On 3/29/2018 at 5:12 PM, Monica said: Beautiful find! (I like fossils left in matrix, too - they make for great display pieces!) Thanks! Link to comment Share on other sites More sharing options...
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