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Found 338 results

  1. Hi y'all, Here are the finds from 3 separate half day trips to Post Oak Creek during the first weekend of Feb and from last Saturday. One of those days was spent hunting a new to me part of the creek that seemed to have more trash and glass than fossils. That day I decided to make a move to a more productive part of the creek to collect some gravel that I had promised my nieces so they could do some fossil hunting at home. Also I collected some for myself. Last Saturday @Buffalo Bill Cody and I went hunting. It's was warmer and I noticed several bass swimming in the creek. I'll have to bring my fishing pole for the next outing. The week before last I went canoeing on the Llano River for 4 days where I had the pleasure of seeing some interesting fossils that I'll be posting below. Bare with me. I'm posting from an IPhone.
  2. Finally made it out to the Sulphur. It's been 9 months so I was eager to get a big hunt in. Pulled an all dayer, 10 miles in the mud. Was quite a workout and I'm still sore. We haven't had a big rise in a while so I wasn't expecting much but I ended up with a decent haul. Favorites are the jaw sections and coprolite. Looking forward to spring storms hitting soon
  3. 8 mile NSR hike trying to get past all the footprints. I had a great day. I found a nice variety of Pleistocene and Cretaceous fossils and all kinds of artifacts. I really like the partial Mosasaur / Pleisosaur scapula with shark feeding marks. The Mastodon tooth enamel has some great color. The Ammonite septum that size is pretty rare for NSR. 2 Mosasaur teeth in one day always makes my day.
  4. Back when I first started fossil hunting, I researched all I could find for stuff around my area. I went to museums, and looked at a ton of pictures. What I found were awesome complete mosasaurs, plesiosaurs, fish, etc. I went out expecting to find something like that. What I found were scattered pieces and parts of stuff. I had no idea that most of these awesome finds I saw in museums were not dug up looking exactly how they looked on the museum wall. The fact is, was most of these things we see in museums are from individuals scattered along a big area, made up of at least some "reconstructed" parts, and often from more than one individual. Last summer my wife and I were fortunate enough to find what I call a "typical" mosasaur eroding out of a chalk wall. What it consisted of were a few scattered broken bones, and when we dug back into the bank a few articulate verts. There was some "root rot" going on, and we decided to expose the bones, pour a plaster jacket on them and extract them this way. They were way to fragile to try and remove individually. When I got them home, I decided to make a mount showing how they were found and tried to capture the excitement of the find. Here is the slab after cleaning down to the bones and plaster. Sitting loosely on the slab are some of the bones we found as float on the ground.
  5. Mosasaur teeth. All personal finds. North Sulphur River Texas.
  6. Long 10 mile hike at NSR and some meager finds. The weather was beautiful so I didn't mind. I found lots of Pleistocene tooth enamel. This particular area of NSR I seem to find more Pleistocene material and points than Cretaceous material.
  7. I need some help identifying what I think "might" be a mosasaur bone. Also, the skinny, orange items are a mystery as well. I defer to y'alls expertise!
  8. North Sulphur River Texas was pretty picked over but I managed to find a nice variety. I found Mosasaur, Cretaceous Turtle, Ammonite, Enchodus / Shark Teeth, Ice Age Tooth, Rudists, Mastodon Tooth Enamel and one artifact in the creek. NSR needs a good rain.
  9. From the album North Sulphur River Texas

    Mosasaur Tooth
  10. Me and my brother (shajzer64) went to the Trenton State Museum today for identification on some fossils we found in Monmouth County over the past few months. We also brought along a few fossils we found through the past few years that I believed could be Hadrosaur teeth. We met with Mr. Paris and had a great day. The highlight was a large Mosasaur brain case my brother found last month but we were also very happy to find out that the potential Hadrosaur teeth we had were all indeed Hadrosaur teeth; we had struggled with this ID in the pat so it was nice to know we turned the corner with that one. The last highlight was two crocodile teeth which are also Cretaceous. It was a great start to the morning and definitely strong motivation to hit the streams again as soon as possible!
  11. Good morning to everyone! Sorry my poor English ... Please like to hear from you. This my Mosasaur Jaw Bone Fossil is real? Thanks to everyone who can help me.
  12. Convinced my girlfriend that Sunday would best be spent crawling around in the mud looking for fossils instead of brunch and mamosas on Lower Greenville. Turns out she's a champ. Logging a solid 7 hours on the NSR and schooling me on how to find Mos vert. We arrived about 8 a.m. and met up with @David E. . Who also proceeded to school me on finding Mos vert and how to properly pronounce several words/names. Thanks Dave! You are truly a gentleman and a scholar. Weather was great. The mud really wasn't to bad compared to the last few times I've been out there. We had some interesting finds including what I believe is my first mastodon enamel, a plasiosaur vert, and what I think maybe part of a globidens mosasaur tooth. The 2 big Mos verts and big fish vert bottom right were found by my girlfriend along with the fat bison/cow tooth. Let me know if any of you would like close ups of anything.
  13. Had a great day hunting the NSR with @Jakuzi and his gf. Thankfully the mud had mostly hardened, the sun was bright and the wind had a chill to it. Found some nice verts, two jaw sections and some fish pieces. I think the coolest find of the day belonged to Jakuzi with his globidens tooth crown. First time I've seen one in person on the NSR. Another item added to the ol' bucket list.
  14. Best find yet!
  15. Premaxilla(snout) of a small mosasaur.
  16. Hi everyone I found this mosasaur jaw online and can anyone tell me if this jaw is fabricated?
  17. Me and my brother, shajzer64, both ended up having a day off on the 26th so we ended up heading down to the Cretaceous steams of Monmouth County. It was cold - really cold, but the steams treated us well. I found a large Mosasaur tooth (1.4 inch) with really nice coloration; it is red, yellow, orange and black, a nice ghost shrimp burrow, and my best Ischyodus (ratfish) specimen to date. Shane came up with a nice Xiphactinus tooth, a few nice gastropods, and a very large piece of fossil bone we are going to take to the museum in a few weeks. Overall, it was a tough trip but I'm glad we went for it! Cheers, Frank
  18. A rooted tooth of a mosasaur.
  19. Diatoms are monocellular organisms which contain chlorophyll, and manufacture their own food in the same manner as plants, through the process of photosynthesis. They are one of the major producers of the Earth's oxygen. Their long geological history makes them very useful in the correlation of sedimentary rocks, and they are of equal value in reconstructing paleoenvironments. They are remarkably common everywhere there is any water at all! I have studied fossil marine diatoms for many years, as they are my primary interest in the microfossil world. Many of them are quite beautiful, and they are a favorite subject with many persons who enjoy photomicrography. My primary interest is in diatom taxonomy and evolution, not photography, so I'm afraid my images don't really do them justice. Centric diatoms exhibit radial symmetry, from circular to triangular, and all points between. Oval shapes are not uncommon. The oldest specimens of essentially modern diatom types are from the Cretaceous, and one of the very best localities is the Moreno Shale, which crops out in the Panoche Hills of California. Many diatomists have worked on this flora, and it is fairly well understood. Here we see two of the common taxa from this source. (The bar across the top of the Azpeitiopsis is a sponge spicule, not part of the diatom!) Diatom frustules are composed of secreted silica -- hence they are brittle, but can be virtually indestructible by chemical or diagenetic change in the right sort of environment. (One exception is a highly alkaline environment, which corrodes and ultimately dissolves biogenetic silica.) Other siliceous microfossils include some types of sponge spicules, silicoflagellates (another blog entry coming up perhaps), radiolarians, and ebrideans. At least one family of the foraminifera uses siliceous cement to form their tests. Diatom floras changed radically across the KT boundary, but they are still abundant in the Paleocene. Arguably the world's most famous locality for fossil diatoms is the region around Oamaru, New Zealand, and all collectors have many specimens from there. The age is Late Eocene - Early Oligocene. Somewhat earlier are the many great localities in Russia. Here is a Paleocene specimen from Simbirsk, Ulyanovskaya, Russia. Note that it deviates from pure centric form in that it is slightly ovoid. My own specialty is the diatoms of the Miocene. The United States is blessed with superb Miocene localities on both coasts, many well-known to members of this forum, because most of them can also produce superb shark teeth. The earliest known Miocene flora in the US comes from sites in Maryland: near Dunkirk, Nottingham, and other lesser known localities along the Patuxent River. All of these sites began to be explored in the mid-19th Century, because the diatoms are so perfectly preserved, to say nothing of abundant! These sites are in the lowest part of the Calvert Formation; indeed, there is an unconformity above them that lasted for a considerable period of time, and the diatom flora exhibits considerable changes across it. This part of the Miocene section belongs to the Burdigalian Stage, and age-equivalent diatoms are found also in bore holes and artesian wells at Atlantic City, New Jersey. An index fossil for the East Coast Burdigalian is the following taxon: This species of Actinoptychus evolved relatively quickly, and became extinct at the end of the Burdigalian. It is remarkably beautiful under the microscope, especially in color images, as fine structures in the silica serve as diffraction gratings. I regret that I have no color image in my photo library: I need to make a few! The Calvert Cliffs are rich in fossil diatoms, also, from the later, Middle Miocene. The above is but one example of the many marvelous specimens that can be found in the Calvert. If you're walking the beach for shark teeth, and have access to a microscope such as that used in microbiology or pathology labs, or even the type used in high school biology labs, grab a sample of the sediment. Soak it in water until it disaggregates into mud, let it settle until the water is just a bit cloudy, and put a drop on a microscope slide with a coverslip. A magnification of 100X should reveal diatom frustules (or fragments thereof) among the remaining, unsettled particles of silt. Diatomists all have their own protocols to get such specimens almost perfectly clean, and permanent slides made with a mountant of high refractive index can be utterly gorgeous. I am currently working most intensely on samples from the somewhat later Choptank Formation, that outcrops at Richmond, Virginia. This is another locality that produces excellent specimens: This is one of the most enduring taxa in the geological record, appearing from the early Paleogene right up until the present day, and it can be very abundant. A common triangular form. There are many genera of triangular centric diatoms. And other radial shapes are possible, too: So far as I am aware, this unique specimen is the earliest known example of this taxon, which is still found today in tropical waters. The breakage in the top "arm" is unfortunate, but what can I say: the specimen is, thus far, unique. One might expect modern contamination of the sample, were it not for the fact that the Richmond localities occur far from the contemporary ocean coast -- they are not "watered" by modern waves! That's it -- the 3.95 MB limit..............................