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That day was so exciting, because I found a really nice specimen of Mixoneura wagneri fern, a specie that isn't very commoon in the area. And the color is... I had the luck of found some Arthropleura armored pieces too (I have to clean and glue them) and a small part of a cockroach wing. Terrestrial fauna are very rare in Spain... I found It on a restored coal mine from upper Carboniferous, Stephanien B of NW Spain.

Some photos in situ from my last trip into a coal mine in NW Spain. Carboniferous fossils like Calamites, Aphlebias, Sigillarias, Ferns, an ultra complete cordaites...

Hi group! What is your opinion? I bring you this rarity, which seems to be divided into segments, something I had never seen around here until now in my Carboniferous area. It reminds me slightly of an arthropod, maybe it could even resemble an arachnid. Or maybe they are just plant remains! Note that there are some sort of indentations in some of the fossil segments and there is an area (vaguely reminiscent of an abdomen) that is oval. It comes from the Upper Carboniferous Estephanian B (Saberien) of León, Spain. Alethopteris zeilleri megafloral zone. Thanks you!!!

Here you have some beautiful fossils that I have been finding lately ^^, all of them come from the same coal mine in the NW of Spain, Stephanian B, Upper Carboniferous. I hope you like them! 1. Parasphenophillum crenulatum 2. Neuropteris ovata var. Hoffman 3. Aphlebia crispa 4. Diplacites emarginatum 5. Oligocarpia gutbieri 6. Calamite suckowi

Mischoptera bergidensis https://aragonitoazul.blogspot.com/p/fosiles-de-la-provincia-de-leon.html

Hi! I am new here, my name is Óscar and I am a spanish boy (16 years old) that are interested in paleontology, I like specially flora remains he he. Here I have a unidentified fossil from the Carboniferous period, Stephanian B of NW Spain. Terrestrial environment. Could any body say me what could It be? They are two different specimens, and they are incomplete, but they remind me of a bract, since in the large specimen a more elongated area is attached to something else that idk what is It, but it's from the same specimen, in the small specimen you can also apreciate It but bad preserved. Both pieces are the same type of fossil. There are many Aphlebias and Lepidocystis asociated in the area. Thanks you! ^^

I’ve been going through the finds from my recent(ish) outing with fellow TFF member @Jeffrey P and remembered that I promised Jeff to post this little bivalve. To my knowledge it’s the first inflated and relatively complete bivalve that he or I have found at one of our favorite hunting spots. Any previously suspected bivalve has been fragmented or deflated and damaged beyond definitive identification. It is from the Glen Dean Limestone formation of the Leitchfeild Kentucky area which is Carboniferous (Mississippian) in age. It’s tiny, but was one of the top finds of the day. Literature is sparse to non-existent on bivalves for this formation and bivalves are not my forte. Any ideas? Please disregard the little bit of shell jammed under the corner in the next two pictures. It’s only there to hold the bivalve at a better angle. The hinge line needs some cleanup to expose it better, but it’s so small and delicate that I am hesitant to do much.

During my trip to a Bond Formation Rock formation in Oglesby, Illinois on October 8th, 2022, one of the limestone blocks I found had a small reddish fossil sticking out on the side of the rock. It was about 2mm in length so pretty small. I thought it was interesting so I brought it back with the rest of the fossils collected that day. There was not a lot of room in my garage for the block so I put it outside on a supply bin for a while. The next couple of days, It rained ALOT. One day I remembered that the calcite in limestone dissolves in rain, so I went out that night to check on what could be revealed. I was pleasantly surprised at what I found! The rain had exposed more of the fossil to the surface. I believe it's a Chondrichthyan tooth or a piece of a brachiopod, but I'm not 100% sure so I was wondering anyone could give a proper ID for the specimen?

Just a weird impression I would have not looked twice at but it seems to have some material in it that would suggest it is actually a fossil instead of just geological weirdness.

"By looking at growth rings in the bones, the team found that Whatcheeria deltae got big fast and then slowed to a more leisurely but steady growth rate. All of the nine specimens they studied were older juveniles and young adults, Otoo said, so it seems that the animals bulked up to around 3.3 feet (1 meter) in length as they neared sexual maturity and then grew larger more slowly in later adulthood. " https://www.livescience.com/tetrapod-predator-growth Original article: https://www.nature.com/articles/s42003-022-04079-0

Hello! I wonder if anyone would be kind enough to give me an opinion about this… It struck me as looking like fossilised driftwood? I’ll be totally honest, just because it looked so much like a modern piece of driftwood at the ends. The striations seemed weird for rock normal banding, layering. Also, there seems to be faded bands running at right angles to the striations on a couple of faces - which again seemed a wood-like feature? I’m very happy to be wrong though! I was lucky, the tide was just going out when I spotted it still wet - it’s fairly unremarkable dry. It’s from the coast in Fife, Scotland. The rocks in this spot are sandstone / mudstone / siltstone, from fluvial, palustrine and shallow-marine environment, from the Carboniferous. Thanks so much for your time and thoughts!

I need help 2 give an id 2 this fossil it is from The Mississippian age found in Harrodsburg Limestone Formation Washington County, Indiana On the tag is saying it is Orodus which wasn’t around at that time and wasn’t a Hybodont Someone Who works with lots of Carboniferous fossils said it could be a Saivodus root(maybe upside down) what do you think. The root/tooth is about 0.75 cm in size what do you think ? The bottom picture is a fossil of a Saivodus

Wondering about the squiggle in the middle. It is the first time I have seen anything like it. I can get a picture with a jewelry loupe in a bit.

This concretion opened up tonight. I'm not entirely sure what it is. I thought it might be a cross section of a small bone, but I could also seeing it being some weird pyrite formation - the site that this was collected at produces a lot of those. Any thoughts? A couple shots under a microscope.

Yesterday, I embarked on my second journey with the Austin Paleo Society to a famous spot: The Wilson Clay Pit. It's the site of a former clay quarry that was used for the production of bricks. Though it is in private hands, the land owners are very kind and allow fossil hunters to collect a diverse range of Pennsylvanian fossils on their property. One of prize finds from the pit is the highly-coveted Petalodus tooth. Some of y'all may remember me wishing to find one on my last trip to the Brownwood area, only to realize we weren't at the right sites to find them. Well, if there was a place to collect beautiful Petalodus teeth, it would be the Wilson Clay Pit. With that in mind, I excitedly set out on a starry night drive. When I arrived, the sun had just beaten me to Brownwood. Temperatures in Central Texas dropped off recently, so we were looking at a frigid day just above freezing. Everyone was covered head to toe in heavy duty winter wear. Nevertheless, optimism was high, so I didn't hear much complaining! When we got to the site, I was blown away by its dramatic terrain. All of the previous quarry work had created huge artificial mounds of gravel and slabs filled with a variety of vibrant colors. In my opinion, it didn't have the beauty of a natural landscape, rather, the inner fossil-hunter in me was simply in awe of the virtually limitless acreage of huntable ground. Exposed randomly throughout was the Harpersville Formation and Saddle Creek Limestone. After @erose gave us a brief introduction to the site, we all disappeared our own ways into the vast, maze-like property. Notice how there's no one else in the pictures? The pit is huge. If it weren't for the greenery, you might think it's Mars. Most people headed off to one side of the entrance or went straight to the back. I was drawn more to the opposing side where there was a huge mound to climb. My goal was to find a spot that hadn't been touched by previous hunters (some mentioned that the Houston club may have been there recently already), so I was trying to get to places a bit more tedious to reach. Crawling up the gravelly incline, I wiped out within the first ten minutes. Luckily, when I turned around, everyone was already gone . From there, things started off a bit slow. I was scanning the ground, picking up anything mildly interesting since it was all new to me. It took a thousand crinoid stems before my eyes locked onto the bright white color of what could be the "porcelain" appearance of enamel. Nope, just bird poop. This cycle repeated five times before I finally found my first undeniable chip of Petalodus! Lots of Petalodus chunks to be had. These are only the ones I decided to keep! I took this to be a sign that virgin ground was finally reached and immediately got to being more thorough in my search. Pretty soon, the tiny teeth bits became more common than the bird poop and my intensity increased accordingly. After a solid 15 minutes of following the cookie crumbs, I was met with a sight that stole my breath. Before me lay a stone with a giant Petalodus perfectly prepped by natural weathering. It was a hundred times better than what I had expected coming into the day. I quickly snapped a photo and got to carefully packaging it in my backpack. Already, my trip was made. An awesome Petalodus specimen. The tooth is about 45 mm across and 54 mm from top to bottom. The day was still young, so I got back up and went to searching. I think my eyes were only attuned to sharky things as those were what I was picking up the most. My bias towards white objects paid off even more as I accumulated a small collection of Deltodus fragments. I like that their white color contrasts nicely with the black Deltodus I found in my last PSoA trip. Halfway through the day, I looped back around to the entrance where I decided it would be best to drop off my prize find, in case I wiped out again later. Because of my vertebrate success from earlier, I set myself to make some invertebrate finds and give balance to my collecting. I found that the purple layer was invertebrate rich and had heard of the possibility for crinoid calyxes, trilobites, conularids, and more. Climbing up and sliding down the purple slopes was blast. There was often something new to reward the effort and my pockets were quickly heavy with brachiopods, crinoid material, and horn corals. This is not edited. The stuff really is this purple. Unfortunately, I wasn't making any out of this world finds on the invertebrate side, so I instead continued my search while also hiking around the entire perimeter of the pit. The eastern border extended pretty far. As I traveled that way, I noticed more and more chert covering the ground. Some had mentioned arrowheads being found on that side of the property, but I didn't see much worked material. As I circled around, I decided to say screw it with the inverts and go back to searching for teeth. I began inspecting rocks of similar appearance to the ones in which I had found teeth before and made a breakthrough. I couldn't believe it when I spotted the crowns of two decently sized Petalodus poking out of two separate boulders. Unfortunately, the limestone was very tough and I knew that getting them out without shattering them would be nearly impossible. My time would be better spent looking for more accessible ones; if there were two that could be found just like that, then surely there were many more nearby. After showing the teeth to Brian, another PSoA member, we both went on a quest to find a perfect specimen that could pop out. As I travelled up the adjacent mound, I did find a decently sized Petalodus, though most of the crown was missing from weathering. It came out in one piece, but I decided to give it away. Not so long after, I followed up with a beautiful smaller tooth that was entirely burnt orange. In my excitement, I forgot to take an in situ pic and immediately began planning a method of attack. Of course, such an awesome find just had to be buried under a thorn bush. Brian was a great help, pulling away the thorny branches so I could get in and make some swings with the hammer and chisel. It took some work, but the durable limestone eventually gave way and the chunk with the tooth came out. After gathering myself, I noticed that some of the root had splintered off. I did manage to locate one piece of it, but the rest was nowhere to be found. Can't win em all, but still happy with it nonetheless. Another beautiful Petalodus. This one is 37 mm wide and 33 mm tall. By then the sun was setting. Most of the group had already gone home, so it was just me, Brian, and Melvin atop the mound. We had some nice discussion, but I think we were all a bit worn out from a day's worth of running around this fossil hunter's paradise. The weather, too, had gotten tired of strangling us with cold, and a final gentle breeze flowed passed the hilltop. God rays poked out from the Westerly clouds to illuminate the distant expanse of greenery I hadn't noticed until then. The moment was nice. After saying our goodbyes, I was a little dejected seeing that I would soon no longer live in Austin and would thus miss out on a lot of future club activities. PSoA has got a really great community, and I'm glad I was there to experience a bit of it firsthand. Luckily, they do have a lot of trips far away from Austin, so I'm sure we will meet again for a future adventure, someday, once they travel close by my neighborhood. Until then, here are some pics of my finds from my latest PSoA field trip: Petalodus ohioensis? teeth Bryozoans, horn corals, and fusunilids Archaeocidarid plate, crinoid arm (Delocrinus) and stem, and a couple of oddities (perhaps conularid or Poterioceras cephalopod fragments?) Straparollus? gastropod and some gastropod from the order Bellerophontida Whole lot of brachiopods. I think bottom center is Meekella. Is that rare? I only found one. Big purple bivalve Shark family photo Thanks for reading!

I spotted this on the outside of a concretion this week while sorting some buckets. It looks to me like it is possibly a wing, but it's pretty water worn so it could also just be a suggestively worn fern pinnule. I was hoping for a second opinion. @Nimravis @stats @deutscheben @RCFossils @Mark Kmiecik @flipper559 Thanks. A couple shots under a microscope.

I collected this fern from the Middle Pennsylvanian of eastern Illinois. It is not a form I recognize. Do any of the plant enthusiasts here have any thoughts?