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Found 115 results

  1. Trilobite parts?

    Hi, I went to St Paul, Indiana a couple weeks ago and was wondering what these two parts are? One is two inches across, the other is about an inch across. Trilobite parts? If so, what species? Thanks for any help.
  2. What is this fossil?

    My son found this unique fossil in our creek bed. Anyone know what this is? Thanks for your help!
  3. Holocystites scutellatus Blastoid 2.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Holocystites scutellatus Cystoid Osgood shale of Napoleon, Indiana Silurian Age (443 - 416 million years ago) The Holocystites Fauna is an enigmatic group of North American diploporitans that presents a rare window into unusual middle Silurian echinoderm communities. Multiple systematic revisions have subdivided holocystitids on the basis of presumed differences in oral area plating and respiratory structures. However, these differences were based on a fundamental misunderstanding of the homologous elements of the oral area and the taphonomic process; taphonomic disarticulation of the oral area formed the basis for the erection of Pentacystis and Osgoodicystis as separate genera, and Osgoodicystis is interpreted as the junior synonym of Pentacystis . Holocystitids show a conservative peristomial bordering plate pattern that is shared among all described genera. The peristome is bordered by seven interradially positioned oral plates as is typical for oral plate–bearing blastozoans. A second open circlet of facetal plates lies distal to the oral plates; five of these facetal plates bear facets for feeding appendages (lost on the A ambulacrum in some taxa), while two lateral facets (present in all taxa except Pustulocystis ) do not. Holocystitid taxa show minor modifications to this basic peristomial bordering plate pattern. As thecal morphologies are highly variable within populations, taxonomic revision of holocystitids is based on modifications of the plating of the oral area. Kingdom: Animalia Phylum: Echinodermata Subphylum: †Blastozoa Class: †Diploporita Superfamily: †Sphaeronitida Family: †Holocystitidae Genus: †Holocystites Species: †scutellatus
  4. Holocystites scutellatus Blastoid 2.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Holocystites scutellatus Cystoid Osgood shale of Napoleon, Indiana Silurian Age (443 - 416 million years ago) The Holocystites Fauna is an enigmatic group of North American diploporitans that presents a rare window into unusual middle Silurian echinoderm communities. Multiple systematic revisions have subdivided holocystitids on the basis of presumed differences in oral area plating and respiratory structures. However, these differences were based on a fundamental misunderstanding of the homologous elements of the oral area and the taphonomic process; taphonomic disarticulation of the oral area formed the basis for the erection of Pentacystis and Osgoodicystis as separate genera, and Osgoodicystis is interpreted as the junior synonym of Pentacystis . Holocystitids show a conservative peristomial bordering plate pattern that is shared among all described genera. The peristome is bordered by seven interradially positioned oral plates as is typical for oral plate–bearing blastozoans. A second open circlet of facetal plates lies distal to the oral plates; five of these facetal plates bear facets for feeding appendages (lost on the A ambulacrum in some taxa), while two lateral facets (present in all taxa except Pustulocystis ) do not. Holocystitid taxa show minor modifications to this basic peristomial bordering plate pattern. As thecal morphologies are highly variable within populations, taxonomic revision of holocystitids is based on modifications of the plating of the oral area. Kingdom: Animalia Phylum: Echinodermata Subphylum: †Blastozoa Class: †Diploporita Superfamily: †Sphaeronitida Family: †Holocystitidae Genus: †Holocystites Species: †scutellatus
  5. Holocystites scutellatus Blastoid 2.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Holocystites scutellatus Cystoid Osgood shale of Napoleon, Indiana Silurian Age (443 - 416 million years ago) The Holocystites Fauna is an enigmatic group of North American diploporitans that presents a rare window into unusual middle Silurian echinoderm communities. Multiple systematic revisions have subdivided holocystitids on the basis of presumed differences in oral area plating and respiratory structures. However, these differences were based on a fundamental misunderstanding of the homologous elements of the oral area and the taphonomic process; taphonomic disarticulation of the oral area formed the basis for the erection of Pentacystis and Osgoodicystis as separate genera, and Osgoodicystis is interpreted as the junior synonym of Pentacystis . Holocystitids show a conservative peristomial bordering plate pattern that is shared among all described genera. The peristome is bordered by seven interradially positioned oral plates as is typical for oral plate–bearing blastozoans. A second open circlet of facetal plates lies distal to the oral plates; five of these facetal plates bear facets for feeding appendages (lost on the A ambulacrum in some taxa), while two lateral facets (present in all taxa except Pustulocystis ) do not. Holocystitid taxa show minor modifications to this basic peristomial bordering plate pattern. As thecal morphologies are highly variable within populations, taxonomic revision of holocystitids is based on modifications of the plating of the oral area. Kingdom: Animalia Phylum: Echinodermata Subphylum: †Blastozoa Class: †Diploporita Superfamily: †Sphaeronitida Family: †Holocystitidae Genus: †Holocystites Species: †scutellatus
  6. Holocystites scutellatus Blastoid 2.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Holocystites scutellatus Cystoid Osgood shale of Napoleon, Indiana Silurian Age (443 - 416 million years ago) The Holocystites Fauna is an enigmatic group of North American diploporitans that presents a rare window into unusual middle Silurian echinoderm communities. Multiple systematic revisions have subdivided holocystitids on the basis of presumed differences in oral area plating and respiratory structures. However, these differences were based on a fundamental misunderstanding of the homologous elements of the oral area and the taphonomic process; taphonomic disarticulation of the oral area formed the basis for the erection of Pentacystis and Osgoodicystis as separate genera, and Osgoodicystis is interpreted as the junior synonym of Pentacystis . Holocystitids show a conservative peristomial bordering plate pattern that is shared among all described genera. The peristome is bordered by seven interradially positioned oral plates as is typical for oral plate–bearing blastozoans. A second open circlet of facetal plates lies distal to the oral plates; five of these facetal plates bear facets for feeding appendages (lost on the A ambulacrum in some taxa), while two lateral facets (present in all taxa except Pustulocystis ) do not. Holocystitid taxa show minor modifications to this basic peristomial bordering plate pattern. As thecal morphologies are highly variable within populations, taxonomic revision of holocystitids is based on modifications of the plating of the oral area. Kingdom: Animalia Phylum: Echinodermata Subphylum: †Blastozoa Class: †Diploporita Superfamily: †Sphaeronitida Family: †Holocystitidae Genus: †Holocystites Species: †scutellatus
  7. Could use some help on these 0.5cm - 1cm invertebrate(?) conical spines in the well known Salem Limestone, a marine limestone of the American Midcontinent. They appear to be solid calcite but do not quite match up with the shapes of crinoid spines and echinoid spines that I know from the Mississippian. I have looked at umpteen Salem Limestone samples but have seen these spines at only one small locality. Any insights appreciated! but please provide your reasoning or evidence.
  8. Hello Everyone, Tragedy from an outing this past weekend and I'd much rather a TFF member who enjoys the educational aspect of fossils get a chance to benefit from my misfortune rather than a picker looking to collect and sell. It's been years since I've posted here but I've known and loved all the interactions I've had in the past and hope to give back a little good Karma here. I was traveling to the famous St. Leon IN road cut with a student of mine and I know I left behind a bag of amazing trilobites. For those who live in the area, you know where I'm talking about. I had a small 2x3 inch bag with at least 5 really nice Flexicalymene wrapped in bits of aluminum foil in it and a bunch of Zygospira (I'm a serious brachiopod fan). I'm fairly certain it either fell out of my bag, or I may have set it down and left it on the blue shale bed at the top of the Waynesville Formation (Blanchester Member) likely on the East side of the road cut. I've been finding I have some memory issues lately and I'm paying dearly for this one. I don't want to put too much detail as I tend to be rather protective of sites, even if they are fairly well known. I have basically given up hope of being able to get back down there soon (I'm from Milwaukee) but I would love for someone to find them and at least keep them and enjoy them. It's also possible that they may have fallen out of my truck while parked at the outcrop. If so, look on the curb on the East side of the road, just about one man-made cut tier below where the blue shale meets the road. (maybe about 100 yards North (downhill) of where this shale later meets the road. The trilobites are all wrapped in little bits of aluminum foil. Some are prone, others enrolled. Of course, I would be ecstatic if someone were kind enough to actually find them and send them to me, but I'd still prefer that at least someone finds them and keep them for themselves rather than have them survive 450 million years in the ground, just to get picked up, carefully wrapped and then run over on the curb and destroyed, or crushed on the outcrop. If someone can make it there sooner than later, I wish you luck and hope you recover them! If you do it is entirely up to you to choose to keep them, but I'd LOVE to see or hear that someone from TFF actually found them. I feel there could be a good chance since It was just last Sunday (March 17th) and people usually collect more during the weekends. If you can get there I hope you find them, love them, and above all learn from them! Kindest regards. Scott
  9. Before I headed back home from my trip to Lawrenceburg, I decided to stop for a few hours in the rain at St. Leon and see what I could find. Here are just a portion of the things that I found. Trilo-Bits Isotelus Trilobite Genal Spine and Thorax Segments Brachiopods- Horn Coral- Isotelus Thorax segment and Straight Cephalopod- Misc.
  10. Thursday night I check the weather report for Lawrenceburg, Indiana and saw that on Friday it was going to be in the 50's. So I did what any other Fossil Collector would do, I called the Hilton Doubletree and made a reservation for Friday night (on a side note, this is a great hotel to stay at, and it is right on the Ohio river). I let work know that I was going to be off and put together my collecting gear. 4:30 am (Friday), I was on the road to Southern Indiana for a little Ordovician collecting. 5 hours and about 350 miles later, I was collecting in Lawrenceburg. The standard stuff was found, bryozoan, brachiopods, trilo-bits, multiple straight cephalopods and some cool Isotelus trilobite pieces (Genal spines, Hypostome, thorax segments and really big piece - if some one can ID that piece, it would be appreciated; I'm thinking that it is a thorax segment. Pieces of Trilobites: Isotelus Trilobite- Genal Spines / Hypostome Isotelus Trilobite- Thorax Segments Isotelus Trilobite- What Part ??????? Straight Cephalopods- Brachiopods- Bryozoan- UNKOWN-
  11. Crinoid IDs

    Today while driving around I saw a coin store that also sold fossils, so I thought that I would stop in and look around. Whenever I go into a little store I don’t just like to browse around without out purchasing something to help the small business owner. So I decided to purchase this little piece that was ID’d as Sarcocrinus granilineus from Crawfordsvile, Indiana. The piece appears to be original and nothing added, but I am not sure of the name. I am not a real crinoid collector, but I could not find this species on the internet. In addition, to me the 2 caylx look different to each other.
  12. I just recently started collecting Ordovician fossils; I always intended to stay with Mazon Creek and Oligocene Mammals, but after seeing Indiana Ordovician hash plates on a couple trips to St. Leon and Lawrenceburg, I have fallen in love with these snapshots in time. When I am out collecting, it gets really hard for me to determine which ones I want to bring home, since they all have a different story. Below are a few of my favorites:
  13. Bryozoan ID

    I am wondering if someone can identify this Bryozoan that I found at the road cut in St. Leon, Indiana- I have not found a another one like it. @Peat Burns / @Herb possibly you could help.
  14. I am going through and sorting out fossils that I collected on a number of road trips that I did this year. I am looking to see if someone, maybe @Peat Burns or @Herb , with experience in the Ordovician from St. Leon, Indiana can confirm what I think may be a couple Edrioasteroid (Isorophus cincinnatiensis).
  15. As much as I've looked through books and the internet, I haven't run across any possible places to find ammonites in the midwest. Any suggestions of locations? I'm in Illinois. My wife's keen to hunt one of these down.
  16. Pecopteris Fern in Nodule.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Pecopteris Fern Fossil Nodule Indiana, USA Pennsylvanian - Carboniferous Period Fern leaves called Pecopteris grew abundantly in the coal swamps of the Carboniferous Period. These leaves dropped off of a 35 foot fern tree called “Psaronius“, one of the most common Paleozoic types. With its sparse and expansive branches, it resembled the modern day palm tree. It produced as many as 7000 spores on the underside of its leaves. These samples are well preserved in gray coal shale as many Carboniferous leaf fossils. Kingdom: Plantae Phylum: Pteridophtya (meaning vascular plant with transport system for nutrients and fluids) Class: Filicopsida (Ferns which reproduce with spores) Order: Marattiales (primitive ferns) Family: Marattiaceae Genus: Pecopteris
  17. Indiana field find

    Found this walking a field in Indiana. Nothing to exciting, but curious if anyone can identify.
  18. Isotelus Trilobite Confirmation

    Just looking for further confirmation on some pieces of Isotelus trilobites that I found a couple days ago in Lawrenceburg, Indiana. These close-up pics are of cleaned specimens, there are 2 pics at the end that I am not sure about. Hypostome: Hypostome and Thorax Segment: Thorax Segments: Genal Spines:
  19. Some ID help

    I'm a rank amateur so bear with me. This was found in gravel outwash material in northeastern Indiana, along the Wabash river. Any ID help is greatly appreciated. Underside of the previous post
  20. a bird, Beast, or maybe nothing?

    I found this inside a rock along with some other things I found in a nearby Creek. Have a lot of interesting things I found there but this one caught my eye because it seems to be the whole thing, both sides are the same.
  21. ID Indiana Fossil

    Hello All, I found this as a boy in southern Indiana in the 50's. It was a loose piece, possibly found on the banks of the Ohio River about 10 miles north of Louisville, KY. The darker stone appears to be a flint like material. Being a young boy, I naturally hit it with a hammer revealing the cross sections shown. The second photo is the upper piece from the first photo and the third photo is the lower piece. It is just so symmetric that I don't think it is a naturally occuring piece. I have been curious about what this is for decades. Any ideas? Thanks, Ed
  22. Need help identifying

    My friend recently began finding presumably Mammut bones in a ditch bank on the family's property here in northern Indiana. He also found this unidentified specimen at the same site. At first glance, it looked to me like one of the many horn corals I've found in southern Indiana, but that obviously didn't make sense given the context. The specimen measures 2-1/8" long by 1-1/4" in diameter. Any ideas? In case you're interested, I've also included a shot of some of the bone fragments found so far. Both bone fragments (which fit together) combined measure 14" long, 3" at its widest point (the joint), 2" at its thickest.
  23. Possible Rusophycus

    After reviewing @aek post "Mystery Fossil of the Upper Cambrian" I saw a response by @doushantuo in regards to a rusophycus and it reminded me of a recent plate that I picked up while collecting at St. Leon, Indiana. The reason I picked it up was that it did remind me of a trilobite resting track that I had seen in the past, but thought it might be too large for trilobites found there. Any ideas or info would be appreciated.
  24. Found this rock while hunting on the historic railroad trail in Madison, Indiana. Found a lot of coral and shell fossils in the area.
  25. Hello all! Hope your having a great weekend!!! My girlfriend and I will be in Madison, Indiana around 7:30 am. We will be checking out the old railroad bath and maybe places along the river. If anyone in the area knows any places I can check out please let me know!!
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