DinoMike Posted March 19, 2017 Share Posted March 19, 2017 On 3-18-17, Dallas Paleo Society had a field trip to the Black Cat Mountain quarry in Coal County, Oklahoma. Here are a few of my finds from the trip. The details on the site are as follows: Harangan and Bois D'arc formations. Age: Lower Devonian, approximately 419.2 to 393.3 million years ago. Brachiopods, and what I think may be some form of coral. Other side of the brachiopods, same side of the coral piece. Other side is just bare rock. Crinoid columnal section Brachiopod bits & crinoid columnal section Random broken bits on a hash slab, brachiopod shells at top. Brachiopod, Leptaena sp. Thanks for the ID help, @Kane! (Continued in next reply... ) Link to comment Share on other sites More sharing options...
Kane Posted March 19, 2017 Share Posted March 19, 2017 The last photo is a brachiopod, Leptaena sp. Here's a hash plate I found of them a while back: ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
DinoMike Posted March 19, 2017 Author Share Posted March 19, 2017 Now on to the big draw of the quarry, trilobites! Partial thorax & pygidium. I believe this is a Huntoniatonia sp. I also found this enrolled trilobite in matrix. Got a little overeager when I saw this one, and shoved my hand right under a thorny vine to grab it. OW. No idea what species this "roller" is unti some prep is done. Now for the surprise I got this morning when I started cleaning excess dirt off some of the hash slabs. Can you see it? Can you see it? How about now? BOOM! Trilobite cephalon! I think it's a Paciphacops campbelli. Check out that detail in the right compound eye! Last, here's another lonely random brachiopod. It was a great trip! Link to comment Share on other sites More sharing options...
Kane Posted March 19, 2017 Share Posted March 19, 2017 Great finds - thanks for sharing. It looks like you had a prosperous trip! ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
DinoMike Posted March 19, 2017 Author Share Posted March 19, 2017 Mine actually was less so than some others. many people had multiple trilobite pygidiums, several had more than 1 "roller"... that place was producing! At least no one ran afoul of any diamondback rattlesnakes this trip... that I know of. Link to comment Share on other sites More sharing options...
Jesuslover340 Posted March 19, 2017 Share Posted March 19, 2017 Nice trip! Black Cat Mountain has always produced for me! "Let us therefore follow after the things which make for peace, and things wherewith one may edify another."-Romans 14:19 Link to comment Share on other sites More sharing options...
JarrodB Posted March 19, 2017 Share Posted March 19, 2017 Very nice. Link to comment Share on other sites More sharing options...
Peat Burns Posted March 20, 2017 Share Posted March 20, 2017 Nice finds. Love those brachiopods! Link to comment Share on other sites More sharing options...
sharko69 Posted March 20, 2017 Share Posted March 20, 2017 Nice finds! I really wish I had the time to go on one of those trips. Link to comment Share on other sites More sharing options...
Dsailor Posted March 20, 2017 Share Posted March 20, 2017 Sounds like a great trip. It is so weird that I recognize most of that Devonian fauna despite being across the the country. It is just in a different matrix than we see here Link to comment Share on other sites More sharing options...
DinoMike Posted March 20, 2017 Author Share Posted March 20, 2017 New find this morning! I noticed that I had left a chunk of rock in my collecting bucket, unexamined. A little cleaning, a touch of dental pick work, and what do ya know... another trilobite cephalon! Little trilobite cephalon on the left, broken brachiopod on the right. Closeup of the cephalon. Scale in millimeters. Alas, the right eye & the right side of the glabella were pretty well weathered. Digital microscope shot. I'm 90% certain it's another Paciphacops campbelli. Link to comment Share on other sites More sharing options...
RJB Posted March 20, 2017 Share Posted March 20, 2017 Black Cat is one of those places Ive always wanted to go to and hunt. Maybe someday? A great report with some great photos. Neato stuff. RB Link to comment Share on other sites More sharing options...
Darktooth Posted March 20, 2017 Share Posted March 20, 2017 Really nice finds! Congratulations! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
DinoMike Posted March 25, 2017 Author Share Posted March 25, 2017 Too bad I can't edit my earlier reply any longer. Seems that I got the trilobite genus wrong. It's now known as Huntoniatonia, due to Huntonia being preoccupied by a genus of isopod. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 25, 2017 Share Posted March 25, 2017 4 minutes ago, DinoMike said: Too bad I can't edit my earlier reply any longer. Seems that I got the trilobite genus wrong. It's now known as Huntoniatonia, due to Huntonia being preoccupied by a genus of isopod. Done! Tim - VETERAN SHALE SPLITTER VFOTM - APRIL - 2015 __________________________________________________ "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...
DinoMike Posted March 26, 2017 Author Share Posted March 26, 2017 9 hours ago, Fossildude19 said: Done! Thanks! Found another pygidium of the species today! Also found another Trilobutt that I haven't locked down as to genus yet. These Black Cat Mountain slabs are LOADED with triloparts, they're just kinda hard to see in the field sometimes. There are also 2 places that look like they MAY be piles of trilo-shell parts from some predator offloading undigestible bits. Hard to tell if it is really trilo, the piles are also full of brachiopod shell parts, bryozoan bits... may just be where eddy currents let Devonian "sea trash" pile up. Link to comment Share on other sites More sharing options...
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