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Found 111 results

  1. Crinoid and Trilo.jpg

    From the album Snakebite6769's Finds

    The trilobite is super small relative to the crinoid arms. Do you see it?

    © Robert Phillips Collection

  2. Illinois crinoid with trilobite before prep

    From the album Snakebite6769's Finds

    hard to se but there's a tiny trilobite on the arm of this crinoid. I will have a post minor prep picture added soon.

    © Robert Phillips Collection

  3. Five new finds that need some experts!

    Hello! I posted a little while ago when I found a tooth out river hunting in Northern illinois. Well I have returned to that spot several times since and have found teeth almost every time. They were all found within about 25 feet of each other. It has been quite fun to go back and see what I will find. My original post is here: Here are pictures of the new ones. #2 appears to be maybe cow/bison. #3 appears to be horse. #4 maybe cow/bison again. #5 I have no idea despite looking at animal teeth pictures for an hour this morning. #5 May just be a stone but it sure looks and feels like a canine tooth. Let me know what you think:
  4. Last year, I found a large trunk of a tree at a coal mine heap in the Mazon Creek area. Images of it here and here. A few weeks ago, I found some more parts (a few feet from the original) that look like identical material. One of which is also a large root/trunk. It has an interesting curve shape. Looks like part of a root mantel rising out of the ground. Here's the bottom part. And here's some details of areas of the bottom showing what I assume is adventitious rootlets.
  5. Mazon Creek 2017 Collecting Season Mazon Creek is open for collecting fossils from March 1- September 30. The area known as Pit 11 is famous for concretions from the Carboniferous period. It is far past its collecting heyday, where concretions were very easy to find. Now this coal strip mine has become quite overgrown and difficult to collect. But there are still treasures to be found. "There are Tullys in these Hills, still" I collected Pit 11 and the South Unit about 15-20 times over the course of the summer, some trips alone, and some with friends, and one with the Earth Science Club of Northern Illinois. I posted some of my trip reports on my blog, and wanted to create a FF post to compliment them, and share photos that are not on my other trip reports. http://americanfossilhunt.com/2017/03/08/mazon-creek-fossil-collecting-opener-trip-report-3517/ http://americanfossilhunt.com/2017/04/14/mazon-creek-pit-11-collecting-report-492017/ http://americanfossilhunt.com/2017/06/23/mazon-creek-pit-11-collecting-report-5292017-torino-hill/ http://americanfossilhunt.com/2017/10/01/mazon-creek-pit-11-collecting-report-islands-braceville-hill-late-2017/ Also, below is a cool poster I made to memorialize the season. It hangs in my collecting gear closet, above all the concretions I will be freezing and thawing this winter. 2017 In spring, this wildlife area is very peaceful. Its hauntingly quiet, and a refreshing feeling to smell the sprouting plants and earth, after an always seemingly very long Chicago winter. To spend a day hiking and exploring 2000+ acres of undisturbed land is one of the more unique fossil collecting experiences as far as sites in the United States go. One of my favorite things about collecting in the early season, is finding some of the animal bones and skulls of those who didnt make it through the winter. This buck skull was one of my coolest finds from the area. When i found it, it still had some meat on it, so I took it home and tried to boil it and soak it in biological detergent. The thing reeked! even though there was very little tissue on it. After a few days of trying to clean it myself, I actually took it back to the woods, and stashed it under a fallen tree, to let nature do the heavy lifting. I returned a few weeks later, and found it very clean and bleached by the sun. It now hangs above my display case. Below is an area by Monster Lake, that I liked collecting. There is some exposed shoreline, and its not uncommon to find concretions in, or right next to, the water. Here is a mixed lot of pre-opened fossils, a couple jellyfish, fern fragments, a worn out shrimp, and corprolite. And a nice neuropteris that opened after a few freeze/thaws. Another mixed lot of pre-opened. As the summer wore on, the collecting got immensely more difficult. By May, some of my favorite collecting areas were so overgrown, they were impassable and un-collectable. My friend invested in a boat, so we can collect Torino Hill, which extended the collecting season quite a bit. Most all of my Torino finds are still unopened, and I am working through them little by little. Photos to come soon. I was going to create a longer post, but it appears I am capped at photos for this entry. I downsized them, but perhaps not enough. I will post follow-ups on this later, and likely throughout the winter, as my concretions start to open up, whether by freeze/thaw, or some days I have planned to do some hammering. til next year! But I will keep the MC posts on the blog and here coming over the next few months. I have 300lbs of concretions to go through, and keep me busy this winter.
  6. Mazon Creek locations

    The week of Thanksgiving, my son will be graduating from Navy Basic Training in Great Lakes. My 10 year old son and I will be coming up to see him graduate. On the way home, I'd like to stop off and have a look at Mazon Creek and see if we can't pick up a few fossils. I saw on line that there is a park you can hunt at, but it apparently is only opened during summer months. Does anyone know anywhere that my little one (he's 10, but autistic, so he's not quit up to speed with other 10 year olds yet) and I can have a fairly quick stop to find a few? Also, I've read about the nodules you crack open. Any tips on how to tell a nodule with a fossil from just an ordinary old rock? And are there any other type fossils to look for? Thank you for any tips.
  7. Pennsylvanian Illinois

    Hi, I found this fossil last year on a trip to the Starved Rock Clay Pit. I didn't find out what it was until just recently: a spine from a shark/eel-like creature called Listracanthus. My question is what is on the other side? Looks like a zig-zaggy impression of some sort. Thanks for any help.
  8. I live in Ottawa and my family's interested in fossil hunting. We had a nice experience out in Iowa! And here, close by, is, or was, just a great place to hunt. But what's the CURRENT, 2017, situation? I already had in my library some old Illinois Geological Survey titles: the one on Starved Rock, and one on the Upper Illinois River valley. I've checked out a bunch from the library, etc., just to figure good places to go. . . I know I want to check the Rt. 178 bridge over the Little Vermillion, for instance. I've been up and down and through a lot of these kinds of places already. Years back we went to the IDNR's state park around Braidwood? Wilmington? and found plenty of nothing. What makes sense? Is the area played out? As a 10 year-old I found a fern fossil on the mine dump in Wenona; great impression and I've always had it as a little treasure. It would be great to find more from this spot. . . fingers crossed, I'd love to find a Tully's Monster!
  9. Silurian Trilobite Pieces?

    These two finds are in one piece of rock found in some roadside rip rap in Kankakee County, Illinois. Based on other fossils I found and knowing what is exposed in quarries nearby, I believe they are from the Silurian Racine Formation. I have never worked with dolomite before, so I would also love to hear any prep advice you have, as well as IDs! The first seems to be a couple of pleura from a Gravicalymene, but is it likely there is more there? The second one has me puzzled- is it a trilobite part, or maybe a brachiopod? It seems like it is symmetrical, but covered by the matrix. Thanks!
  10. Mazon Creek Foss Identification Help

    Once again, I am seeking assistance in identifying a Mazon Creek concretion fossil. Might be an easy one for someone here, but I'm just not finding it. Both halves are pictured below. Thanks!
  11. Silurian trilobite

    Hi, I recently found this in the Wenlockian Sugar Run formation in Illinois. I'm guessing it is a Dalmanites pygidium, but not sure. It has some interesting ornamentation. Any ideas?
  12. help; mess of stuff from Illinois

    Found this in central Illinois. Looks like a fossilized mass of stuff:
  13. Hello! I'm so happy to find this great forum. It's always nice to find a new site full of good people and great information. I have enjoyed spending time in nature for as long as I can remember. Walking along rivers looking for animals, fossils or arrowheads is one of my favorite ways to spend an afternoon. I was out today and came across this tooth. It struck me as being out of the ordinary. Looking through dozens of images on the internet it resembles cow, deer or taipur. This was found at the edge of a small river right at the shoreline. The river is in Illinois about 20 miles West of Chicago. Any help is greatly appreciated and thank you for allowing me to join and post here. Please let me know if you want more photos, further description of the item or where it was found. Thank you! Seb
  14. My Pennsylvanian Shark Teeth

    Over the last two years I have been able to collect a small but diverse group of shark and other chondrichthyan teeth from Pennsylvanian deposits in Illinois. Actually, all but one of the teeth are from one exposure of the La Salle Limestone of the Bond Formation- the other tooth was found in some roadside rip rap limestone in Central Illinois which seems to share many species with the La Salle, but unfortunately I have no way of determining the exact origin. Here is the first tooth, this is the one collected from rip rap in northern Champaign County. It is a cladodont type tooth, although unfortunately most of the main tooth and some of the cusps are missing. The tooth is 15 mm across at the widest point.
  15. My Mazon Creek Finds

    I will be using this thread to post what I have found fossil hunting in the Mazon Creek area, including the ESCONI Braceville pile, Mazonia/Braidwood, and any other sites I get a chance to explore. Although I had been to Mazonia a few times previously with virtually no luck, my first successful trip was with ESCONI last September at the private spoil pile they have access to. These first fossils are all from there. I have tried to give the best IDs I can- please jump in if you think I have anything wrong. I also forgot to put something in for scale on this first batch of photos, my apologies. First are three that I believe to be Essexella asherae, all very different looking though. The first is quite large, 7.5 cm across, and I love the red color. Next are two Achistrum sp., the first is my favorite fossil I have found from Mazon Creek thus far- curled up neatly in the nodule and nearly complete. The second is partially pyritized- I couldn't find any similar examples online, so it seems fairly unusual. Here are a few Mazonomya mazonensis, the top one is adorably petite- the shell is less than 1 cm across. This is small impression fossil of some bark- I'm still learning to ID the Pennsylanian flora, so I'm not sure exactly what this would be called. This appears to be a trace fossil, possibly a tunnel of some sort? I believe this is a coprolite. Finally, a few incomplete worms. The first I have identified at the tail end of Didontogaster, while the second nodule seems to have a few thin worm-like fossils preserved- perhaps Flabelligeridae sp.?
  16. Unknown Mazon

    I'm at a loss here. This is perhaps the most unusual of the Mazon fossils that I have come across, and I don't recall seeing anything quite like it in the photographs posted here, but I could have missed something. This is from an old collection of Mazon pieces, and, for an unknown reason, is one of the few that has a lacquered or sealed surface. The concretion, as an intact nodule, measures 2-3/4" x 2-1/2", and the fossil inside is roughly 2-1/2" in length. Any ideas? ~Paul
  17. Black shale oddity, any ideas?

    I went down to a new spot i found to see if i could find more Carboniferous shark teeth. Sadly, no teeth. But i found this oddity. I've personally have never seen anything like it, and it kind of reminds me of shark skin, but i'm leaning more towards a strange trace fossil. In the upper right corner and top center you can see symmetry somewhat in the shape i can only describe as a sunflower shape. Other than that the spots seem random. Any opinoins are welcome. I've been searching and searching without any luck. Thanks, guys and gals This is Carboniferous black shale.
  18. newbie needs help

    Hello! I'm a complete amateur & need some help. Camping in Apple River Canyon state park, Illinois in what is called the driftless area. They had a huge flood wash through the canyon a week or so before my trip, relocating tons & tons of rock. I found a few fossils, but don't know what they are or how to clean them up. Thanks
  19. Over the last year I have made a few trips to explore an abandoned, partially reclaimed spoil pile in East Central Illinois. Coal was mined from underground at this site until the 1940s, and it was largely graded and replanted in the early 2000s. However, a ridge adjacent to the main pile still exposes the overburden from the mine, including the fossiliferous Pennsylvanian Energy Shale. Although not anywhere near as productive as Mazon Creek or the Fowler Park site in Indiana, I have found a small variety of plant fossils at this site. This weekend I made a quick trip to see what had been exposed by weathering over the past few months. The first picture shows the main spoil pile in the background with exposures on the ridge in the foreground. The sparse vegetation on the right is the result of a coal fire still burning in places inside the smaller pile- you can feel the heat close to the ground and see smoke rising in the winter, which means caution is required. On this trip I found a handful of nodules, including a few already split. The first open one is a small fern pinnule, while the second is my first Lycopodites or Lepidodendron branch tip.
  20. Please Look

    Hi all First off thank you all I know a lot of members get tired of my posts not trying to aggravate you in anyway You guys are some of the most intelligent people I have been a part of There was post in general discussion that has been on my mind about how Mazon is been drying up and just wanted to say disagree totally I always thought there is a lot to be found and wish could get to the middle of those piles we know what's on top let's see what's in middle mabey it is going to take another 80+ years for the erosion to find something mabey olny a few Charlie we will hook up and will take you to one of my favorite areas in fall (If you promise not to disclose) lol Anyway I do try to look and find on net images of what I post I am well aware of timelines and hope to find out of the normal fossils or rocks lol again thank you all. So to get that out of the way found this again close to pit 6 Area Not saying it is just going of Images Warsaizer test lol almost like Herbivore tooth what do you think? 2 3 4
  21. ID help possible petrified bone?

    Hi all Found this pit 6 area again know the time line but dose have bone like appearance what do you think? 2 2 3
  22. Sponge?

    Found in a quarry near Rockford, Illinois, Ordovician, Galena group. It looks like a sponge, but I can't seem to find a match. Any help appreciated.
  23. Carboniferous shark crushing tooth

    I found a new spot in Illinois that is loaded with carboniferous black shale. And this tooth fragment has gotten me pretty excited. Can anyone attempt an ID on this partial? The tooth measures about 1/2" × 1/2".
  24. Mollusk?

    I know nothing about fossils and have no idea what I have found. We dug a large pond in Illinois and I found this stuck in clay.
  25. Ordovician trilobite

    Hi, I found this interesting piece in Ordovician Platteville Illinois. A very tiny trilobite pygidium on top of a partial Isotelus cephalon. My question is what species is the pygidium? I'm guessing Encrinurus, but not sure...any ideas? Also, how can one tell if it is from a juvenile, this tail measures only 1.5mm. Thanks
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