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Texas Pennsylvanian Weekend - Trilo, Crinoids, Goniatites and More!
JamieLynn posted a topic in Fossil Hunting Trips
The Paleontolocigal Society of Austin monthly field trip was last weekend - we planned to hit a couple of spots in Brownwood. Well it's a bit of a drive from San Marcos, so I decided to make a mini two day trip out of it and stay in an Air BNB (a great option for traveling these days - no shared air source like a hotel!) . So instead of just the two sites on Saturday with the Society, I headed up to Lake Jacksboro for some solo hunting! And boy was it solo.....not a SINGLE person at the site! I was astounded. Had the whole place to myself for HOURS! It was a beautiful day - 70s and sunny. I c- 24 replies
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On a recent fieldtrip I found a verry large and promising looking goniatite. The center of the specimen was covered in claystone. I tried a combination of mechanical prep with air scribe and treatment with potassium hydroxide. Removing matrix as close to the fossil as possible and then treating it with potassium hydroxide. I repeated this process a few times until I managed to clear out the whole center of the fossil. before and after pictures: Crickites sp. Frasnian ( Late Devonian) Belgium
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I will trade these fossils for one well preserved European goniatite or European triassic ammonite (specimen with 5 to 8 cm preferentially) because that kind of specimen is lack in my teaching collection. Note the Anorthopygus orbicularis is not a common species and, apart the incomplete test, has an exceptional detailed preservation, rarely seen. Best regards, Ricardo Traded
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- mecaster scutiger
- anorthopygus orbicularis
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I'm unable to identify these goniatites from the Finis Shale member of the Graham formation. Found at the Lost Creek spillway near Jacksboro Texas. At first I thought they were just extra large examples of Agathiceras sp. which can be found there because of the longitudinal lirae but I noticed some other differences. These are more evolute as well as being larger. They also have a larger whorl height to whorl breadth ratio at 1.11 to 1 compared to .85 to 1 for Agathiceras. This one shows the larger umbilical diameter of 10mm and he
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- finis shale
- late pennsylvanian
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From the album: Middle Devonian in Central New York
Tornoceras uniangulare Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20© Owen Yonkin 2020
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From the album: Middle Devonian in Central New York
Agoniatites vanuxemi Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20© Owen Yonkin 2020
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A couple weeks ago I met with a retired paleontologist that specializes in Pennsylvanian cephalopods. I showed him all my finds from a certain site here in NE Oklahoma and he was kind of surprised with what I had found (and wasn’t finding). There were a couple common goniatites and nautiloids, a few uncommon ones and five specimens of one type of goniatite he didn’t recognize. He checked his book and still couldn’t match a suture pattern and told me it may be an undescribed species. He noted down the pattern and said he was going to double check, but if it ends up being the case, he would pote
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- paleontology
- goniatite
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From the album: Middle Devonian in Central New York
Tornoceras uniangulare Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20 -
What type of fossilization is if we see a flat white orthoceras on a black stone? Many sellers cut the stone in the shape of orthoceras shell, to believe that is the whole animal sell. Please help, because i can't understand what type of fossilization is this.
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- orthoceras
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This weekend we finaly got out after those long months of lockdown. This time I am prepping a gephuroceratid that Natalie found. They are often found on top of the limestone banks, but this time she found one peeking out the center of the limestone bank. The position of the fossil didn’t make the prep any easier, since I had to grind away as much as possible of the matrix with a powertool without cutting in the fossil. Luckily I just missed a 2d goniatite hidden in the matrix with the grinder. After 4 to 5 hours of prepping with grinder, chisels, with air scribe and a
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- manticoceras
- frasnian
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Finally time to go back in the field after that long period of confinement . So this Saturday we went back to the Ardennes to prospect Frasnian ( Late Devonian ) deposits. Not a lot of finds, but it was good to be in the field again, and Natalie did find some nice quality fossils. Enjoy the pictures : A placoderm fragment: Bryozoa: not a fossil coral nodule with a few Tornoceras: same piece after a little work:
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Quick fieldwork in the devonian before the storm
Manticocerasman posted a topic in Fossil Hunting Trips
Saturday we went back to the south of Belgium to check out the quarry where I like to hunt for goniatites. The last 6 months there was litlle activity in the quarry and I was hoping that things had changed by now and the would have dug further, but alas there stil was no change. Still the bad weather and the storms of this winter cleaned out a lot of debris, we did find some nice fossils. At 1 pm we had to give up searching and ran back to the car due to heavy downpour and wind. Start of the day, gray and windy , but still dry: ptospecting the rubbl -
This Monday we went on the last fieldtrip for this year, the weather forcast was cold but sunny so a good excuse to get out. We took te dog along and went to the quarry, A lonely excavator was operating in the far end of the pit, I went for a quick chat to let him know we were prospecting in the other side of the quarry and to ask if it was no issue for him. The fossil rich deposits had'nt moved since our last visit, but we still did find a few cephalopods. Natalie found a very promising one, the goniatite looks to be preserved completely in white calcite, I cant wait to get tha
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I recently got a new job, and to make things even better, my job is at a company who processes and places floors and walls in stone, mostly marble. This opened a few opportunities for me , having access to a huge amount of polishing and cutting tools, so this week I gave it a try: I took 2 of my Goniatites that weren't of top quality, or to hard to prep. and today the helped me to cut the fossils and polish them. The fossils turned out really well here are my first 2 polished Manticoceras sp. from the Frasnian layers of Lompret in Belgium:
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Restoration and prep of a Manticoceras sp. Goniatite.
Manticocerasman posted a topic in Fossil Preparation
Before going back on my field trip today I had a few projects to finish. so last week I tackeld a broken goniatite, the specimen was in 2 parts and and large gaps were between the 2 parts. first I prepped the 2 pieces appart and then glued them back together. Then I filled the gaps with crack filler that I mixed with a bit of black paint. after this dried, I cut of the exces with a sharp knife and smoothed the surface with a a dremel with soft steel whire brush. I then finished it by adding some paint on the restored parts.- 6 replies
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- manticoceras
- goniatite
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Here’s something I found in Michigan, it’s an ammonoid of some type but I thought it was too wide to be a goniatite, I could be wrong though.
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From the album: Fossildude's Middle Devonian Hamilton Group Fossils
Tornoceras uniangulare Middle Devonian Windom Shale. Moscow Formation, Hamilton Group. Deep Springs Road Quarry, Lebanon, NY. Found on April 27, 2019. The goniatite is nearly 2 inches in diameter.© 2019 T. Jones
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- goniatite
- tornoceras uniangulare
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I recently bought some small hematized goniatites from Morocco. They are each under 25mm and fully hematized. The two on the right look to be the same species, while the left specimen is wider in girth and has simpler sutures. They are probably too worn to have distinctive keels, but I've posted a photo of the keels anyway. Any thoughts on identification? I wasn't able to find a good source online for identifying goniatites to family or genus. Thank you for your help!
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Imitoceras Goniatite - Jack Co- Pennsylvanian
Texas Fossil Hound posted a gallery image in Members Gallery
From the album: Cartier's favoroite fossils
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Found this first one in Jacksboro, TX, Lost Creek Dam. Finis Shale Formation, Pennsylvanian. Would like to identify. Gastrioceras? or maybe Vidrioceras?
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Yet again a Manticoceras prepp my last few preppjobs were very succesful, and inspired by what @Ludwigia did on a larger one that I sent him, I tried to prepp one of my larger Manticoceras specimens. I tried a few new tricks to prepp this one, although the living chamber got dammaged, I decided to remove even more of the living chamber to show more of the inner shell with suture lines. It turned out quite well: Manticoceras sp. diameter 16 cm Frasnian ( late devonian ) Chimay area ( Belgium ) as found: ( top left specimen )
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This week I've been prepping a few goniatites that I had lying around. This one didn't look very promising, but what a surprise I got when I tried to remove it from the matrix. a few hits with the chissle and it came out perfectly. I just had to remove the extremities and clean out the center with an airscribe. It turned out to be one of my best specimens Yet an other Manticoceras sp. for display
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I'm done with my paintjob om the 2 replica's I recieved. I posted the orthocone earlier. now I'm also done on the Manticoceras. 1st a couple of WIP pictures: The end result With fossil specimen: and a group picture I'm very happy with the end results .
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- manticoceras
- goniatite
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This was found in central Texas near some ammonites. The appearance is very different than the others. Does anyone know what this might be?
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From the album: Fossildude's Middle Devonian Hamilton Group Fossils
Middle Devonian Goniatite, Tornoceras uniangulare. Moscow Formation, Hamilton Group. Deep Springs Road, Lebanon, NY. Collected on 10/14/2018- 6 comments
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- middle devonian
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