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The last item for show and tell today, where I show, and you guys educate me. I can't tell you how much your information is appreciated. I've learned so much about items I've had for years, as well as new additions that were bequeathed to me. It's really nice to know more about these items. This item was found in a sand pit in the north Canadian River in eastern OKC. A rock crusher stopped working when this item got lodged in it. I realize there is not a lot here for identification, but you guys seem to be able to ferret out what things are from very little information. Hopefully the double row of teeth so close together will help. I received this from the owner of the quarry, and I am NOT the one that one that put the sealant on it. it's very dense, so there wasn't much reason to do that. Not sure why it was done.
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From the album: Fossil Collection: DC Area and Beyond
Amniota Lawton, Oklahoma Arbuckle Group Early Permian -
Back in April I visited a well-known Permian site in Oklahoma in hopes to adding to a tiny collection of Permian vertebrate micro fossils I picked out of a bag of "red bed" matrix I purchased a few years ago from a site in Texas. These sites are Early Permian in age and contain tons of tiny bone fragments of amphibians and reptiles, as well as shark and fish remains. I was hoping to get some help identifying/confirming identifications for some of tiny teeth that I collected from the site. Any help would be greatly appreciated! #1- ???- 1.6cm- someone before told me xenacanthid, but the lack of serrations and the fact it is pitted makes me question that identification #2- ???- 9mm #3- ???- 1.3cm #4- Ophiacodon uniformis?- 1cm #5- Ophiacodon uniformis?- 1.2cm
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Battery-Powered Tools for my Return to Lake Texoma, OK
Megalodoodle posted a topic in Collecting Gear
I’m planning my return trip to Lake Texoma and I was wondering if y’all had any suggestions for tools to bring. Preferably batter-powered (no generator) and powerful enough to excavate large ammonites from hard limestone. Explosives, battery acid, and hydrochloric acid are out of the question. I’d settle for gas-powered tools, but only as a last resort. -
A couple of weeks ago I made a weekend trip to Oklahoma to collect from several exposures of the Late Ordovician Bromide Formation, Mountain Lake Member. At one site I picked up this trilobite pygidium that I cannot seem to quite pinpoint with any of the trilobites I have seen in the literature from the Bromide Formation, Mountain Lake Member. It measures about 2.2cm in length. Does anyone recognize this trilobite tail? Any help would be greatly appreciated. Thank you in advance!
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Over the last several months I have been using a freeze-thaw method to open up some phosphate nodules I collected from a Middle Pennsylvanian site I visited in Northern Oklahoma. Recently one nodule split open to expose something. It is about 2cm in size. My gut tells me disarticulated fish bones but I am not sure. Does anyone happen to know what this could be? It was a little tough to photograph so please bear with me. If any additional photos would help, I can try again. Any help would be greatly appreciated.
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Over the weekend I visited a well-known Permian site in Oklahoma in hopes to adding to a tiny collection of Permian vertebrate micro fossils I picked out of a bag of "red bed" matrix I purchased a few years ago from a site in Texas. These sites are Early Permian in age and contain tons of tiny bone fragments of amphibians and reptiles, as well as shark and fish remains. I was hoping to get some help identifying/confirming identifications for some of the more diagnostic bone bits that I collected from the site. Any help would be greatly appreciated! #1- Skull fragment of Eryops megacephalus?- 4cm #2- Vertebra of Archeria crassidens?- 2.5cm #3- Vertebra of Diplocaulus magnicornis?- 9mm #4- ???- 2cm #5- Toe bone of Trimerorhachis insignis?- 8mm #6- Toe bone of Trimerorhachis insignis?- 8mm #7- ???- 9mm #8- Vertebral Spine Spur of Edaphosaurus boanerges?- 1cm #9- Amphibian jaw section?- 8mm #10- Claw of Dimetrodon limbatus?- 1cm #11- Amphibian claw?- 6mm #12- Claw of Trimerorhachis insignis?- 1 cm #13- Amphibian claw?- 1cm #14- Amphibian claw?- 9mm
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Over the last several months I have been using a freeze-thaw method to open up some phosphate nodules I collected from a Middle Pennsylvanian site I visited in Northern Oklahoma. Over the weekend one nodule split open to expose this tiny bivalve. It is only about 9mm in size. I have tried in vain to identify it. Does anyone happen to know what this could be? Any help would be greatly appreciated.
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I found this goniatite at an exposure of the Sausbee Formation (Early Pennsylvanian; Morrowian) in Oklahoma. I have tried in vain to identify it to even a genus level. I was wondering if anyone knew what this goniatite is. The only identifying mark that I could see on the fossil was a single band on the underside, as seen in the third photo. Any help would be greatly appreciated. Thank you so much!
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From the album: Permian
Ornamented lungfish bone/scales are fairly common, but their teeth seem to be comparatively rare. This one is ~ 3 mm in its longest dimension. ^Mottequin et al. (2015) -
From the album: Permian
Now how can this crumb of a tooth be attributed to Dimetrodon?? First, it's serrated. It could be shark? The enamel is not smooth (not very visible in this image, a little at the bottom), so no (additionally, the serration shape is different from those of Orthacanth sharks). That narrows it down to serrated Synapsids. It turns out that very few animals at this time and location had "true" serrations, not just enamel serrations, but bumps in the dentine beneath the enamel. The enamel on this piece happens to still be clear, allowing one to see the globular dentine underneath! From Brink and Reisz (2014), I'd posit that D. grandis is a suitable candidate. I'm also not an expert, so I welcome contrarian arguments. I highly doubt it's Therapsid, as I haven't heard of any from the Waurika locality. D. grandis:-
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From the album: Permian
A "lucky break" in a Labyrinthodont tooth (likely Temnospondyl amphibian) still embedded in matrix reveals the intricate labyrinth of plicidentine. -
From the album: Permian
Dimetrodon sp. Wellington/Ryan Fm., Waurika, OK, USA Post-canine/posterior tooth This tooth is likely from D. limbatus, given the locality and presence of serrations: https://www.nature.com/articles/ncomms4269 The same paper also rules out other serrated Sphenacodonts by the enamel ornamentation. Its smaller size could indicate that it's from a juvenile. It differs from the comparatively abundant broken Orthacanth shark tooth cusps in the microfossil matrix (what most people are likely to confuse with): the enamel texture is not smooth, the crown is very broad (indicating it's likely a posterior, in addition to its size), it has fine serrations that differ in shape from the sharks', and the base doesn't flare out. Were this crown complete, you'd also notice a conical/rounded depression in the base. A beautiful tooth from one of our surprisingly close cousins. -
From the album: Oklahoma Stigmaria
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Hi This is calamites?
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This is my first post since I introduced myself a week or so ago. All of this (the forum as well as the fossils) are extremely new to me. So, I hope I'm doing everything alright. I've tried to read up a bit before posting. I'm honestly wanting to know if what I've stumbled on is a place as special as it seems to me. I guess, that's what matters anyhow. Nonetheless, I wanted to show you a few pictures of the types of things I find. None of these have to be looked for. They are in a creek that is sometimes full and running with water, and sometimes dry as a bone. But these are everywhere. Actually, the form the bed of the creek even. The "chunks" I pick up feel like clay and can be split when they are still somewhat wet. If they dry, they get brittle. If I soak them in water to wet them again, the completely fall apart. The only way I know to open them to find the little treasures inside is within 15-30 minutes after I get a bag full and get back home. Any info on them is great. I want to share and hopefully learn. Thanks, Frank
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