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  1. Baybeh

    Hello

    Hello Everyone, I have a few (presumably)fossils to show y'all to see what you have to tell me about them. I live in a fossil rich part of Texas, so I'm literally surrounded by fossils everyday, I figured maybe I could learn a little about them here. I *do* want to warn you that I am ADHD, so if I wander off it's because I saw a squirrel or a shiny. But I will get back to this eventually, and it's not for lack of interest. I am assuming I should post my 'what's this' questions in a more appropriate place.. so I'll see y'all there!
  2. deathstardollface

    Fossil?

    Dallas tx found at shore line of lake ray Hubbard it’s prob just a rock but idk . Anyone able to help ID?
  3. Shaun-DFW Fossils

    Mighty fine woodbine..

    I feel like I finally hit pay dirt today, my best woodbine ammonite day in my short time looking. I think the smallest one (2.5”) might be a different species? It has 4 little bumps across the top, I notice the rest have fewer. I was pumped to find these! I started out a bit too far in the woodbine, but I grabbed some small pet wood pieces, at least. Far eastern Tarrant county TX
  4. I've been recently looking into working with b72 for preserving and strengthening some of the pyrite and coal fossils I have. At the moment, I have a few questions regarding this topic: 1) For DFW folk, do you recommend any stores that sell b72 in the DFW area? For others, do you recommend any reputable online stores that ship it? 2) Should I store acetone in the original container I purchased it in? What is the safest part of the house to keep it? 3) What are any general tips/tricks you wish you knew before you started using b72? Feel free to answer as few of my questions as you'd like. All advice is greatly appreciated. Thanks!
  5. Over the month of December, I've gotten the opportunity to check out several sites across the state of Texas. In my fossil interests, I have to admit that I am certainly a bit vertebrate-centric, but that does not mean I will pass up the chance to marvel at a beautiful invertebrate specimen when given the chance. For better or worse, these past four mini hunts have not really delivered on the vertebrate end, but have made up the difference in terms of inverts. I've decided to combine these smaller hunts into one report. For those with invertebrate addictions, I hope this sampler of Texas fossils will meet your medically-necessitated daily dose of invertebrate content. Enjoy! Maastrichtian No Mas Kemp Clay and Corsicana Formation Leading up to my eventual move away from Austin back to DFW, I made sure to visit a nearby site that possessed some Maastrichtian exposures. Back up in Dallas, the nearest exposures of similar age are a bit of a drive, so I wanted to take the opportunity to travel to a convenient spot while I still had a chance. I had previously seen this spot mentioned in some old literature, where it was described as exposing the Kemp Clay at the top of a bluff and Corsicana below. Since I had no prior experience with these formations, I wasn't sure what to expect or what to look for in terms of identifying formations. One Saturday afternoon, I carved out a few hours to take the drive and a brief hike out to the spot. I was excited to finally hunt a stage of the Cretaceous I had never searched before. The landscape was quite dramatic and I could see out for miles. Pictures really do not do the place justice. The drop from the trail to the creek bed is much higher than the picture makes it out to be. After navigating my way down, I was immediately confused by the formation the creek bed was composed of. Perhaps I am just too Ozan-minded, but the shale looked almost indistinguishable from my usual Ozan hunting spots elsewhere in the area. It had that classic bluish grey color and was even filled with rather large Exogyra oysters. I began to wonder if so much time and weathering had passed that the creek had finally reached down to the Ozan far below. However, a closer inspection showed that there were some subtle key differences. The wavy shells of the oysters were not indicative of the species E. ponderosa, but instead of E. costata, which is present in the Corsicana Formation at least according to the paper I had read about the site prior. There was also a pronounced presence of tiny phosphatic bivalves that I had never seen in the Ozan. With this information, I was relieved to know that my goal of collecting in the Maastrichtian could continue without issue. Some leftovers from an earlier fossil hunter. Not all of these are E. costata since they washed down from older strata upstream. With little direction as to where to look first, I decided to plop down and try splitting open some chunks of mudstone that had fallen down from a grey and brown formation at the top of the cliff (Kemp Clay I'm assuming). Initially, I didn't find much, but eventually some invertebrate fossils began showing up. I was intrigued by the presence of the original shell on a few gastropods (I hadn't been to the Whiskey Bridge at this point so this was a first for me). They were ornamented, unlike the steinkerns I had been accustomed to for the entirety of my Cretaceous fossilizing career before. Unfortunately, none of them were preserved well and were more so just crushed messes too fragile to take back. In the same rocks, I came across various bivalves that were fairly nice to look at and ended up keeping an orange 2D one, though I am having a difficult time identifying it. A gastropod with the original shell from the Kemp Clay(?) A flattened bivalve(?) from the Kemp Clay(?). It's about 30 mm across, orange, and has thin red lines between the ribbing. At first, I wondered if it was a smushed trigonia, but I'm doubting that now. Afterwards, I surface collected along the bed and climbed some of the cliff where Corsicana was exposed. There wasn't much in the way of large finds, but getting close to the ground revealed a plethora of smaller finds to be had. The first objects of interest were highly detailed button corals. The closest thing I could find online as an ID was the genus Micrabacia which is known from the Peedee formation (also Maastrichtian). I came across a couple bits of crab claws as well. My vertebrate hopes for ginglymostoma were never fulfilled, sadly. Instead, I found only three sharks teeth that were all missing roots . I don't think they can be identified, but I welcome you all to toss out ideas if you have any. An in situ of what could be a Micrabacia button coral. As I walked along the cliffs, I couldn't help but think about the time period I was traversing through. In the formations beneath me were the Cretaceous layers I had grown so used to. In those days, mosasaurs and dinosaurs dominated the world. It's mind boggling to realize that the strata just above the Kemp Clay was the geological blink of an eye that saw an end to all of it. All those billions of ammonites and not a single one made it through such a barrier. Even something so simple yet prolific like exogyra was put to a complete stop. The Maastrichtian was not a final stand by any means either. That day 66 million years ago may have started just like any other, but ended with the world being permanently changed in a way that is almost unimaginable. Speaking of days ending, the time was 30 minutes till sunset. With the day winding down, I decided to circle back and try splitting some more mudstones from the Kemp Clay in hopes of finding a shark tooth before calling it quits. Rock after rock, I couldn't seem to find anything other than the usual tiny clams and crushed snails. As the light started to dim, I was finally greeted by the sheen of shiny black enamel. It had a strange shape to it, but this being a new place for me, it could have just been a weird shark for all I knew. As I chipped away at the rock, more and more of the specimens figure was revealed. Finally, I realized that all of my labor had been put into exposing a simple enchodus fang, no different from the hundreds I had seen before! And yet, I was still happy with it. After the disappointment of the broken shark teeth from before, it was nice to at last have a complete tooth from the Maastrichtian, no matter how common the animal may be. With that, another stage of the Cretaceous was crossed off the list. Some pics of all of the finds: Strange bivalve, a gastropod, Micrabacia(?) corals, and perhaps a scaphopod? Top row L to R: Crustacean claw bits, and the enchodus (petrosus?) fang. Bottom L to R: Worm tube, and three rootless shark teeth Eocene Escargot Stone City Formation Fast forward about a week, and the time had come for me to pack my things and leave my dorm once and for all. I usually drive straight to Dallas from Austin, but this year things were different. My carless brother started his first semester at A&M, so I volunteered to pick him up on the way home for the break. Being the person that I am, I simply cannot drive all the way out there and NOT visit the world-class site known as the Whiskey Bridge. I made sure to turn in my dorm key early in the morning and head on out for a quick hunt in the Stone City Formation along the Brazos. I was hoping @Jared C could join in the fun, but he unfortunately had a final that same morning . I'm pretty sure passing the class wasn't that important, but I won't hold it against ya . Before making the drive, I had also done a bit of research into which layers yielded the most vertebrate material. Even with the information, however, I still had measured expectations as the Stone City Formation is of course much more famous for its rich invertebrate fauna. The goal for the day was to find some vertebrate material and perhaps a complete cone snail. When I arrived, the place was still covered in mud from the storm a couple days before. With hopes that the popular site had been replenished, I carefully made my way down to the water, passing by a couple of hunters just finishing up their session. The plan was originally to head straight for a productive spot a ways from the bridge, but of course the newness of the place and its fauna had me stopping in my tracks every few steps to pick up a gastropod. When I finally got to the spot, I slowly climbed up the slope to meet the fine hash layers atop the ledge. There is never a dull moment at this locality. Every square inch of surface is covered with bits of white shell. The first oddball that caught my eye was a strange looking piece of coral. Madracis johnsoni Side stepping to the right while hugging the wall of soil led me to my next noteworthy find and the first of the vertebrates! The skinny crown and wrinkling of the enamel was a familiar sight for someone who has collected so many scapanorhynchus teeth in the past. However, it would seem that, for this formation, a sand tiger shark was the more likely ID. I'm guessing this is from Striatolamia macrota. The weathering on it is likely due to prehistoric reworking I would assume. Striatolamia macrota? Not so long after, I sidestepped my way into finding my first ray plate! Unfortunately this one was also in not-so-perfect condition. Myliobatis sp. fragment I couldn't stick around for too long since my brother was waiting for his pickup. I rounded off the trip by filling up a couple bags with fine shell hash matrix for future screening for microfossils. I didn't take too much though, as I have a secret side project involving many bags of micromatrix that is currently occupying most of my micro attention. If I find anything special from the hash, I will be sure to add an update to this topic. Overall, it was a solid first visit to a famous site. I managed to find some vertebrate bits and bobs that I'm happy with. I am a little bummed I never got a complete cone snail, but I guess that will just have to wait for a future outing. Overview of the finds: Top: Dentalium scaphopods Bottom L to R: Striatolamia macrota tooth, Myliobatis ray tooth fragment, reworked Carcharhinus mancinae? tooth, and Conus sauridens fragments Top L to R: Lunulites bouei and Schizorthosecos sp. bryozoans, and Turbinolia pharetra coral. Bottom L to R: Fish otoliths (not sure how/don't want to ID), Balanophyllia desmophyllum, and Madracis johnsoni Top L to R: Weathered Architectonica elaborata?, and probably Venericardia densata that looks strange since it doesn't seem to curve like others. Mid L to R: Anomia ephippioides, Vokesula smithvillensis, Notocorbula texana, and perhaps a worm tube? Bottom L to R: Large Anomia ephippiodes, and a trio of Venericardia densata Top L to R: Athleta petrosus, Ancilla staminea, and Pseudoliva vestusa Bottom L to R: Athleta lisbonensis, Architectonica scrobiculata, and Sinum arctatum Top: Michela trabeatoides Bottom L to R: Protosurcula gabbii, Hesperiturris nodocarinatus, Cochlespira engonata, and Protosurcula gabii though they look different from the one on the left of the row. Top L to R: Distorsio septemdentata, and Latirus moorei Bottom L to R: Mesalia clairbornensis, Turritella nasuta, and Gegania anitquata Phew that was a lot to identify. I'm sure I got plenty wrong, so feel free to correct me on any of these. I will probably find a ton of new species in the micro matrix that I can add in a later update!
  6. With time running out before the start of the school year, I decided to spread my attention across three DFW formations to get a little taste of what each has to offer. Instead of shooting out a handful of smaller topics, I've decided to combine my trips into a single larger post. I wouldn't say any individual find is a jaw-dropper or museum-worthy, but they, all together, give a nice glimpse into what each formation can yield. In order from oldest to youngest: Goodland This adventure took place in Oliver Creek with the Dallas Paleo Society. It's a regular spot for the group on private property. The site is well known for its plethora of echinoids and highly sought after Oxytropidoceras (still working on the pronunciation) ammonites. A huge crowd of hunters arrived in Justin for the meet-up. I was worried it would be too crowded for the creek, but there was plenty of elbowroom and something for everyone. I'd say about half of the people spent the morning scouring the gravel beds whereas the others got to hammering away in the limestone ledges. Once my brother and I found the good layer, we were nonstop working out urchins and ammonites. The echinoids (A) were literally everywhere and preserved in great condition. We came out with a baggie full of them, but left many more behind. It was pretty easy to find ammonite fragments too. However, finding a complete ammonite with at least a little structural integrity was a tougher challenge. Luckily, fortune was on our side and we came away with four decent Oxytropidoceras's (B). The two pictured below are the largest and prettiest ones. Prepping them will be a challenge though. They are too fragile for the hammer and chisel, but a little too tough for my new dental pick (I bent it a bit already ). Along with these, we also got a neat selection of gastropods and bivalves (C). The Society continued on to a second location, but we decided to call it a day early since my brother was a bit tired of the heat and rock dust. A). Several Holaster whitei from the Goodland Limestone. The ones straight from the ground have amazing preservation. One urchin is covered in oysters (Plicatula?). A coating of b72 gave them a nice sheen. B.1). An Oxytropidoceras ammonite. B.2). The best Oxytropidoceras of the bunch. Its got an interesting feature that I am curious about. There seem to be some fragments of the original shell still attached in a couple of locations. These "shell fragments" have reddish orange splotches on a white base and have a distinct texture to them (I'm not sure if porous is the right word). I wonder if the red coloration is just staining or if they could be indicative of the shells original coloration. When I first noticed them I immediately thought of the red striped shells of modern nautiluses... but I am probably getting ahead of myself . C). An assortment of bivalves and Tylostoma snail. The two smallest clams appear to be Protocardia texana while the scallop is, I assume, Neithea. The largest clam is smooth and difficult for me to ID. Denton Clay Took a trip to a construction site. Didn't find anything and then got my leg cut on a rusty post. Got a tetanus booster and no lockjaw thankfully. 0/10 would not come back! Pawpaw I've been poking around a couple of construction sites located on the Pawpaw formation west of Ft. Worth. They've both been decently productive, though I wish I could've had more time to really look through them thoroughly. It's a really interesting layer with some notable dinosaur finds and shares some visual similarities with the Woodbine in my opinion. The sites I went to cut through I variety of levels in the Earth. I think they are all still within the Pawpaw, but I am honestly not sure. In a more elevated cut, I found the specimens shown in (A). I was super excited when I pulled my first Coenholectypus only to realize that it was very poorly preserved and covered in lots of matrix. I tried some vinegar on it which cleaned it a bit, but the way it's shattered and degraded on the other side makes me think this is as far as I'll go with it. In a lower layer, I found some really interesting fragments of purple ammonites and a bivalve (B). I tried hard to find something complete, but the best I could come away with was the tiny purple heteromorph I added additional pics of. I think the sites needs some rain as many of the fossils were covered in dust and hard to spot. Definitely places I will check out again when I'm back home. Lastly, I decided to include an updated pic of the micro Engonoceras that is seen in my pfp (C). I only just recently acquired paraloid b72 and have been enjoying it immensely. After applying some to my micro ammonite, it has obtained that beautiful "wet" look that really brings out its color and details. I've got some older pyrite ammonite encased in paraffin wax that I may try replacing with b72. I have a feeling they will look much better. A). Bivalve and damaged Coenholectypus urchin. B). Purple fragments of typical ammonites, heteromorphs, and a bivalve. A complete ammonite of this nature still eludes me despite my efforts. C). My Engonoceras with a fresh coat of b72. Eagle Ford Despite the fact that I've been actively fossil hunting for about a year, my experience with the Eagle Ford is focused mostly on only a couple of brief visits to Post Oak Creek. I decided that now was a good time to finally jump in and try to figure this famous formation out. I hit up a few spots at a local creek with huge exposures of bluish shale. Despite the urban sprawl immediately surrounding the area, the tranquility of the creek made me feel like I was out alone deep in the wilderness. There was plenty of foliage and animals to populate it. Something about the place made me wonder if I had somehow traveled back in time. I was quick to get to work, scanning the shale and splitting open some slabs. The matrix was loaded with tons of fragile fish parts. Every slab contained a smattering of scales (I think) and other miscellaneous fish parts. Most of the small things were so delicate they would poof away when exposed to the air. The bigger things were a bit stronger and I was thankfully able to stabilize them before they were mostly destroyed. Early on, I got lucky with a beautiful little Enchodus jaw (A). I believe it's a piece of the lower one. To go with it I always came across a couple of jaw sections with larger fangs (B). Unfortunately, the tips of them immediately popped off and disappeared into the ether before I could preserve them. One slab surprised me with a broken shark tooth that I assume is Cretoxyrhina mantelli (C). It was the only shark tooth I came across that day, but it gives me hope for future expeditions. Of the thousands of fish scales I found, I decided to try and preserve a larger one (D). These guys were very fragile so I'm happy he made it out mostly in one piece. Once again, a slab surprised me... this time with a tiny ammonite, something I don't usually associate with the Eagle Ford (E). And to round off the day, I noticed some protrusions jutting out of the shaly bank. When removing them, I noticed they were rounded orbs containing a concentration of fish parts. I assume that these are coprolites. I don't know much about these sorts of ichnofossils so please inform me if I'm wrong. If they are coprolites, are they from a fish or a reptile and how can you tell? A). Lower Enchodus jaw? B). Some Enchodus fangs and jaws. Tips broke off when revealed. These guys are both consolidated in b72 and were originally in multiple pieces. Reattaching the fangs was some tedious work. C). Cretoxyrhina mantelli? D). Fish scale preserved in b72. E). A tiny ammonite in the shale F). A crappy ending with some suspected coprolites. In Conclusion I had a nice summer break with plenty of time spent exploring the world of fossils surrounding where I grew up. It was a lot to take in, but I truly learned a great deal about the oceans that once swept over North Texas. The diversity of marine creatures is astonishing and it impresses me every time I split open that next slab of shale. With the school year starting up again, I am moving back to Austin. It's been a hot second since I've traveled to my usual Ozan spots and I am excited to get back into business. I'll take the sudden burst of rain today as a sign of good things to come. I can't help but think of all the freshly revealed marine fauna that have finally gotten the chance to take their first gulp of water in roughly 80 million years.
  7. ThePhysicist

    Cretodus

    From the album: Sharks

    A large genus (for the Cretaceous); this one was found at the DFW airport in the 80's.
  8. ThePhysicist

    Cretoxyrhina tooth

    From the album: Sharks

    One of my favorites - the "ginsu" shark. This one was found at the DFW airport in the 80's.
  9. Rockwood

    small shiny + black

    The area from Dallas Fort Worth airport to Arlington, TX seems to be littered small shiny black stones. Some tempt a garfish scale identification while others like these suggest teeth. Somehow I doubt both. I would be interest in finding out for sure what they are though. Thankyou in advance.
  10. I hunted for the second day in a row yesterday. This was a creek in the middle of Dallas-Fort Worth. I'd wanted to make a trip to this creek for a while, plus had some errands in the city, so made the drive for both yesterday. After the long and arduous hike the day before, this was supposed to be short and easy. I was seriously mistaken about that. The creek banks were just too steep to get into the creek. I ended up walking quite a ways, and even then, went down a bank so steep that I tied a rope and left it to get myself back up the bank. I was thinking that if rain got anywhere near me, I'd better clear out quick, or I'd never make it back up that bank. This is an Eagle Ford creek. It was a really great looking outcrop in this creek, but I couldn't get it to yield much. And the shower the night before had the gravel bars wet enough that they were tough hunting too. But I did bring home a few pieces. This ammonite was trying to crumble.
  11. ThePhysicist

    Cretoxyrhina mantelli (5)

    From the album: Sharks

    Cretoxyrhina mantelli Ginsu shark Eagle Ford Group, Dallas, TX Found at the DFW airport in the 80's, this anterior tooth shows some nice coloration.
  12. Lone Hunter

    Help ID Cretaceous ammonites

    Found all these in the same place, north Irving ( Dallas County) in eroding drainage canal, lots of shale and concretions and neat little rocks you crack open with surprise inside. Is the small one Metoicoceras? Hard for me to differentiate that and Calycoceras, which the bigger one looks like to me but they wouldn't be in the same place, correct? And the little guy a Heteromorph maybe? I seem to find a lot of those. My favorite part of these is the suture mark patterns.
  13. From what I've learned crinoids aren't from around here, prob from way upstream fill rock. Here being Dallas creekbed in Eagle Ford shale. Its so unique with the patterns, almost looks carved, just guessing part of a crinoid because of the cylinder shape. What the heck is it?
  14. NWARockhound

    Two Texas DFW Cretaceous Nautilus

    When I was visiting my parents for Christmas, there was a surprise for me in my favorite local creek bed, and it wasn't just how cold the water was! I've found plenty of ammos there, but these are my first two nautilus. I tried to find out what they are, but I pretty much got redirected to ammo IDs. I was also wondering if it's worth buying the HGMS ID books. I'm curious, but don't really want to spend the money. These were found in a marl layer, but I'm not really sure which one. Grayson Marl I believe. Found in Tarrant County. Are they cymatoceras? Cracked one is about 2" diameter, other about 1.5".
  15. Is anyone willing to either give me a good spot or take me on a guide (I will pay) for my 7 year old? She is bullied alot by our neighborhood adults so I need to get her away. She is obsessed with dinosaurs and such and I know there are no dinosaur, just crustacious (idk if I spelled that right) but the ocean stuff.) Someone please help me with somewhere. I know mineral wells has a lot of cool things but we are going to Lewisville to deliver Girl Scout cookies and that is 1h 45 min away. Was hoping for something closer. Anyone? PLEASE help me make my child happy! The pic I attached is from today because she wasnt allowed (or other adults) to play with the kids. I'm *hoping* a few semi nice fossils will make her happy.
  16. wendyeeeo

    Egg or Concretion?

    I found this rock when walking near the Trinity River in Dallas, TX. It could have been brought in with gravel used to make a trail, since I found it by a trail. It's probably just a concretion, but the patterns are interesting! Anyone know what it is? Thanks!
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