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Found 2 results

  1. Mikrogeophagus

    Red Zone Road: NSR Highlights

    With my limited time in North Texas before my move south, I decided to revisit my favorite sites as opposed to scouting new ones. The NSR is a classic locality, but I had never actually gotten to check out the famed red zone for myself. Yesterday, I made the drive to the fossil park. I was supposed to hunt with a couple others, but it unexpectedly turned into a solo hunt. I won't complain though. The vast river emanates a magical aura that is uniquely felt when you're exploring on your own. The primary goal of the day was to snag a decent specimen of the red zone ammonite, Trachyscaphites spiniger! In an attempt to beat out the stiff hunting competition and high afternoon temps, I arrived to the site in the early hours around seven. Unsurprisingly, I was far from being the first car in the lot. As luck would have it though, none of the people there before me had their sights set on the distant red zone exposures. It's a long and taxing trip that only so many people (the crazy ones) are willing to undertake. After crossing under the 2990 bridge, I took in the view and tried to visualize where the destination might be. It was quite daunting, but the journey of a thousand miles begins with a single step. Red Zone Road It was gonna take a lot of walking to reach the mouths of the red zone creeks, so I tried to keep the gravel hunting minimal along the way. Nevertheless, my eyes were still scanning the ground around me and the vigilance steadily began to pay off. After a few Enchodus fangs and a Carcharias holmdelensis tooth, I came across the first prize of the day. Cemented together in red zone matrix was a mass of turtle shell that I had never before seen a similar specimen of. It has some good weight to it and cool three dimensional character. I don't know enough to identify it to a genus assuming that's even possible. I believe Archelon and Ctenochelys are known from the NSR as well as other genera I'm sure. Articulated turtle shell fragments in red zone matrix Some time later, I came across an interesting bone fragment that I don't have much of a clue about. The texture seems like fish. It has pronounced ridges running longitudinally and a U-shaped spongy cross section. I held onto it in case it might be something cool. Mystery bone Here and there I came across various red zone ammonite chunks to whet my appetite. None of them were keepers in part because I had high hopes for what lay ahead. Maintaining my steady pace brought me to the mouth of the first creek I had circled. Yesterday's 25 foot rise was still draining and the sound of rushing water filled the air with occasional thuds from falling shales. In the high cliffs I could see a distinct red band of matrix slicing through the grey shales. Tracing it with my eyes, I followed the line upstream until it was within reach. It was absolutely filled with phosphate chunks and nacre-covered Baculites. After a short time, I locked onto a Trachyschaphites that was just poking out. Excitedly, I threw out my tools and began excavating. My enthusiasm was quickly washed away as I realized the chunk sticking out was just a chunk. This sequence of events repeated itself along the entirety of the creek and before I knew it, I was exiting with a bag of assorted Trachyscaphites pieces. The only interesting things to show were a beat up red zone mosasaur vert and some snails. Red zone mosasaur vert Gastropods from the red zone Now the temps had crossed into the 90s and beads of sweat were covering my face. Wanting to take a break from the red zone, I began a thorough search through the massive gravel bar outside the creek. It took awhile to warm up my hunting goggles, but eventually I spotted the first keeper of the bar: A big ole worn mosasaur tooth. Sadly, it was sliced in half and had chunks busted out of it. Not too long after, though, I got it a smaller, much more complete friend. Likely Tylosaurus proriger After these mosasaur teeth, I scored what I like to call a "pseudo-mosasaur" or its other name, Pachyrhizodus. It was pretty easy to spot the difference since a little bit of bone was attached beneath the crown. Still a cool little fish tooth. Pachyrhizodus I'm not very good at spotting artifacts despite having spent many hours in the creeks of Austin. Now and again though, I manage to blindly stumble my way into a killer point or two. Wedged into the sand beneath the receding waters, was the unmistakable base of a Gary. Haven't found one of these before, so I was pretty happy to add this NSR classic to my collection. Gary in situ Gary point The last and most interesting find of the bar was a huge chunk of Xiphactinus jaw! It seems to match up exactly with the very distal end of the lower jaw. Within two matrix-filled tooth sockets are a couple of emerging teeth. Distal end of a Xiphactinus lower jaw with a couple of teeth. Finally, it was time to set my sights on the creek across the river. To my knowledge it doesn't have a name as it is quite small. The disappointment of my previous red zone expedition set my hopes low. Although the tree cover was nice, with it came swarms of mosquitos and some sort of biting fly. I spent most of my walk through it flailing my arms trying not to become a walking buffet. The red zone was much better exposed and I quickly spotted a couple of Squalicorax that sadly weren't keepers. There were many Trachyscaphites fragments to waste my time, but at long last I ran into exactly what I was looking for! With careful swings, I worked the heteromorph out of the shale and quickly stored it safely in its own private Ziploc bag. With the primary objective met, it was time to quickly evacuate the mosquito hellhole and return to the safety of the sweltering sun. Trachyscaphites spiniger heteromorph (my favorite ammonite). There is a significant crack that hasn't completely split. Hopefully the b72 will hold. It was about 4 pm and I was close to my limit. There was another spot further ahead known for arrowheads that I wanted to see, but I was saving that for the people I was intending to meet (no cell service so I didn't know plans had changed). It became apparent no one was coming, so I gathered my bucket and pack for the long trek home. The adrenaline of fossil hunting had definitely carried me through the day. The river now seemed endless and every step of foot sucking mud taxed me more and more. After retracing my route at home, it seems I river walked at least 5 miles! As I crawled into my blistering hot car, I told myself one red zone hunt was enough for the rest of my life. But after a good night's rest and cataloguing my finds, I'm ready to go again . I guess we'll see how I feel next summer. Thanks for reading!
  2. flyingpenut

    North Sulphur River Vert

    I took a trip to nsr after some decent rain in the middle of January. Here in Texas the weather can be hot, cold, or anything in between and it turned out it was a nice day in the 60s. I found a decent mosasaur vert, some decent ammonites, and a few other items. Let me know what you think. Pictures 4 and 5 where of a huge ammonite. You can tell by the rock pick it was over a foot wide and the picture doesn't show but the outer shell that was deteriorating was iridescent and really pretty. I don't think I have seen an ammonite with actual shell still intact however everything else was pretty much eroded. I also provided some in situ shots of the verts. Also pictures 28 and 29 are of a really worn piece of bone that had one side covered in matrix or was possibly fused with another type of rock? Anyone know what items: 8 and 9, 10 and 11 are? Also I haven't done any research yet but it appears there are several different types of ammonites I found. Picture 27 are those burrows? If so any idea what creature made them? Lastly item 6 and 7 appear to be cow teeth. I'm assuming they are modern? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
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