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Found 398 results

  1. I will be in Western NY on Sunday and Monday this coming weekend, and would like some recommendations for sites to visit. I will be travelling from NY City to Canandaigua, and am willing to stop on the way if there is an interesting trilobite collecting site--I am flexible on which way I drive, etc. Since lagerstatten sites such as Walcott Rust are not open to the public, I would love recommendations to sites that are known to be accessible, public or private. If private, please PM me if you think the property owner would be amenable to a request from a solo collector. Specific directions to any recommended site are very appreciated. I am also happy to meet anyone along the way so I can learn with someone with experience. I am interested in trilobite collecting, and would love the chance to find the unusual or less usual species, so the site can be Ordovician, Silurian, or Devonian. Places that you know have better preservation are preferred, even if it is more difficult or farther to travel there. Off the beaten track is fine, as long as it doesn't take a long time hiking just to get there, or is very physically strenuous to reach. I will be making a stop at Penn-Dixie, where I am a member. I will also be staying on my family's property in Canandaigua that has a creek with trilobite species (see images of trilos collected in May this year). Unfortunately, both of these trilobites I have below were found out of their stratigraphic context so I was wondering of there is any resource you can refer me to that can help me tell which strata are probable for finding trilobites(ie as I walk up the creek, and look at the exposed strata, is there a way to visually recognize each bed in the formation?). On the maps, the trilobites listed on the east and west shore creeks of Canandaigua Lake are Phacops/Eldregeops and Greenops sp of the Hamilton Group, Moscow and Jaycox Formations. BTW, I gave up on trying to remove matrix on this one, too hard to do in control--I have no pneumatic tools, only a pick and a small hammer. The Penn Dixie matrix is sooo forgiving/easy in comparison! Thanks in advance!
  2. Any help with this would be appreciated.Found in a quarry in Rockford, Illinois. Ordovician Galena group Thanks
  3. This is a Zagora's Asaphidae that I began to prepare yesterday. Can anyone helpson it's ID, please? And what are the existing papers about Asaphidae in Morocco? I have several to study and ID. Thanks in advance. Miguel
  4. Hello, is there in Morocco any other species of Onnia? Or just Onniasuperba? Those ones in the pictures are from Blekos. Thanks in advance, Miguel
  5. Hello, found this one and it seems a Zelliskella. What do you think? 5,1 cm @piranha Miguel
  6. Flexicalymene, Gravicalymene?... Thanks in advance for your help. Miguel
  7. From the album Trilobites from Morocco


  8. From the album Trilobites from Morocco


  9. I have a collection of Ordovician bryozoans which remain unidentified. I have photographed them with my digital microscope. The geometry and design are quite interesting.
  10. Specimen from the upper member of the Verulam Fm. Measures 56 mm at widest extent of the colony. Stellate maculae clustered more closely together than C. florida and more akin in appearance to C. fischeri. . Specimen is currently not described in this formation, to the best of this collector's knowledge, although other specimens have been collected from this location in the past.
  11. Just got back from Brechin and had a lovely time collecting with TFF members Malcomt and Ludwigia. Managed a pretty decent haul for my first time up there, and definitely my thanks to Malcolm who is a real veteran of the place in pointing out where to look and how to work the rock. It was a bit of a drive for us, but it was lovely. We had to leave a bit earlier to beat the traffic. So, pictures equal thousands of words, and all that. A few of our other members will probably have some other stuff to add to this thread. First up are hash plates. I am personally fond of them, and since these are in an Ordovician formation (Verulam) I've never collected before, it is all a great novelty to me. Gastros, brachs, byrozoans, trilo-bits, etc: And, a healthy serving of gastropods. I particularly like the large, high-spired ones (Fusispira sp.?) that weathered right out of the rock for easy surface collecting.
  12. I found this crinoid head on a limestone that belongs to the Georgian Bay Formation, late Ordovician, today at the Humber River in Toronto, Ontario. Is this crinoid a Cincinnaticrinus or a Glyptocrinus? I have included a nickel for size reference.
  13. I have no clues, neither information about this one. Any help? Thanks in advance for your opinions
  14. One of only a handful of the undescribed species, this specimen is unfortunately missing its librigenae.
  15. Hello, Is the Caid El Rami Placoparia's species (like the one at attachment) already known? Thanks in advance for your opinions.
  16. From the album Trilobites

    Taxonomy: Flexicalymene senaria (enrolled) Age: Ordovician - Katian (Verulam Formation) Location: Brechin, Canada Source: Field Collection Remarks: Damaged and a bit crushed as opposed to fully inflated.
  17. From the album Trilobites

    Taxonomy: Isotelus gigas (enrolled) Age: Ordovician - Katian (Verulam Formation) Location: Brechin, Canada Source: Field Collection Remarks: Nearly complete save for a chip out of the pygidium.
  18. From the album Trilobites

    Taxonomy: Ceraurus sp (enrolled) Age: Ordovician - Katian (Verulam Formation) Location: Brechin, Canada Source: Field Collection Remarks: composite image of front and back. Lightly cleaned using baking soda and toothbrush.
  19. Interesting open access paper on mass extinctions. Jones, D. S., A. M. Martini, D. A. Fike, and K. Kaiho, 2017, A volcanic trigger for the Late Ordovician mass extinction? Mercury data from south China and Laurentia. Geology v. 45; no. 7; p. 631–634 Yours, Paul H.
  20. Hi all, It's been a few years since I've posted here, but I'm hoping to bring some order to my fossil collection and prep some specimens for display. I've tried to glean info from other threads in this sub-forum, but am still trying to figure out how best to approach preserving/restoring Ordovician fossils. As a for instance, how would others approach this rock? It's a piece from southeastern Indiana and contains what I've tentatively identified as Tentaculites sterlingensis and some Flexicalymene pieces parts. Is there any way to make the Tentaculites pop out a little more and clean it up without breaking up the actual fossils? The rock is about the size of my hand. I like how others have given that glossy dark finish to Flexicalymene trilobites; can that be done here? Thanks for any tips you have and I apologize if this is not the right place to post this particular question. -Andrew
  21. Do you think this could be a partial edrioasteroid on a Hebritela brachiopo Found it today in Cincinnati. Ordovician period It looks like it could be one where the arms disarticulated
  22. After I was unable to visit the St. Leon roadcut yesterday, I decided to see if my non-fossil collecting wife would let me stop for a few minutes on our way home. She agreed, so I made a very quick trip up one gully picking up loose brachiopods, horn coral, bryozoan and some hasp plates- no trilobites. After reviewing @Peat Burns trip report, I believe that I also found the bivalve Ambonychia, but he may be able to confirm. Here are a couple pictures of some of my finds. My wife is in the car checking the time- LOL. Possible Ambonychia Bi-Valve
  23. On my way home from vacation, I wanted to swing by St. Leon to look for some small/ thin Ordovician hash plates, but due to an accident in the area, I decided to swing by the road cut in Lawrenceburg to get some. It was a very hot / sunny day, so I decided to not to spend a ton of time out there. Here are a couple pics of the area and a couple hash plates I collected and a part of a cephalopod.
  24. Lately if you have seen some of the topics I've started, these trips revolve around an Ordovician reef I came across by the Credit River in Mississauga, Ontario. One of the few things I discovered while exploring these spots is that there are plenty of Stromatocerium sponges which I red is a stromatoporoid. My question is, can anyone lead me to any papers about the growth forms of Ordovician stromatoporoids? I have found specimens of stromatoporoids and from the way I see it, some of the specimens I found of the same species have different growth forms. Some have those things they call monticules on the surface, and some don't exhibit them at all. Instead these specimens exhibit cracks and splits on the surface of the organism with irregular bumps and overgrowths. I'd like to know what causes this. Some of these sponges, from what I have collected, colonize some pieces of Prismostylus on the top.
  25. Well I was out hunting the Ordovician on Saturday and as it turns out I had a pretty awesome day. I found a plate with 5 flexicalymene trilos on it all essentially complete , a cyclocystoid complete with central plates, a partial piece of a cleiocrinus, a pleurocystites, a complete prone ceraurus with at least 5 small crinoid calyx on the plate, a bit mangled enrolled isotelus, a calyptalaux . You can see that fossils when they are found in the field are often nothing special to look at. Note that in the field I always circle what I am interested in with black sharpie marker (never leave home without one ) Many times I look at what I brought home weeks later and it really helps to know what caused me t carry it back to the car with me...... I also write the location and the date on the back because it is often weeks or months before I get to looking at them after getting home. However what got me excited was the rock 2nd from the top of this group but one that had just the faintest sign that it had something that looked like an echinoderm in it. Not much to look at and barely noticeable in the filed.All the pictures that follow are of approximately the same orientation as the original unprepped picture. Here it is under better light and closer up. After a while prepping I realized that I had something special Getting even more special Starting to look quite cool All done and the first ever Edriophus levis (Bather) for me and it is essentially complete. It is about 1 1/2 inches across. There were a few found a few years back but this is the first I have seen in quite a while. Not exactly common......`These are quite rare and are found in both the Bob Caygeon and the verulam formations of Ontario. Note that the arms curve clockwise which is one of the distinguishing features , Lebitodiscus curves counterclockwise. It would also appear that the arms go further down the sides than Foerstedicus. The anus is composed of 9 to 15 triangular plates which you can see broken up on this specimen. Really had no clue what it was when I found it in the field. I thought it was going to most likely be a crinoid calyx... Was a very nice surprise. As you can see from the last picture the specimen is sitting free on its original matrix. The reverse has also been prepped and is hollow with some plates visible. Unfortunately I did not take a picture of the underside yet. Maybe will try to do when I get a chance. But have a lot of really neat material under prep right now ... have spent 10 hours a day prepping material in the last few days ... If I can keep up the pace for a few weeks I can start to get my head above water.......