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Found 196 results

  1. Pseudogygites pygidium

    From the album Billings Shale

    A P. latimarginatus pygidium from the Billings formation near St. Laurent, Ottawa.
  2. Pseudogygites pygidium

    From the album Billings Shale

    A partially pyritized P. latimarginatus pygidium from the Billings formation near St. Laurent, Ottawa.
  3. This is my final post for tonight, and then I will stop cluttering up the forum. Unfortunately, this specimen has been badly weathered and so may not be identifiable at all, but the shapes are so intriguing that I can't help but ask. Any thoughts here would be very much appreciated. The two angles are from different sides of the same rock. Sadly, I did not find this specimen myself, and so I do not have any particularly useful information on age or location. It was left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. Here are the pictures. Thank you in advance for your time and input. Side #1: Side #2:
  4. This one has me pretty confused. My initial thought was that it was a nautiloid, but upon closer inspection, I realized that I did not see any sign of chambers, which made me question that ID, so maybe it's a gastropod? I'm not sure how clear this is from the photos, but the spirals are continuous (e.g., they are not stacked disks as I've seen in some nautiloids). Any thoughts here would be very much appreciated. Sadly, I did not find this specimen myself, and so I do not have any particularly useful information on age or location. It was left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. Here are the pictures. Thank you in advance for your time and input.
  5. Gastropod- Clathospira?

    As with my other posts so far, I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find this specimen myself, and so I do not have any particularly useful information on age or location. It was left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. Based on some web-surfing, I came up with a possible identification of Clathospira that is probably completely wrong. Here are the pictures. Thank you in advance for your time and input.
  6. Brachiopods

    As with my other posts so far, I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. They look to my untrained eye to be the same species of brachiopod, although I have no idea what species that is. Any taxonomic information beyond just "brachiopod" would be awesome. Here are the pictures. While photographing, I kept the specimens in the same order, so the one on the left/right is the same specimen in each picture. Thank you in advance for your time and input.
  7. Orthocone nautiloids

    I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. I have several different specimens of orthocone nautiloids, and I would love to know if anyone can refine that identification further. To make the situation more difficult, the siphuncle is only preserved in one of the specimens so far as I can tell (first set of photos below). For this specimen, the diameter of the nautiloid is ~3.5 cm (depending on exactly where it is measured), the inner diameter visible on top and the diameter of the siphuncle on the bottom are 4 mm, and the outer diameter is 8 mm. Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2:
  8. Rugose Corals

    I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. I have several different rugose coral species, and I would love to know if anyone can refine that identification further. I thought the colonial rugose coral might be an Eridophyllum species, but I would not bet much on my identification. The third is truthfully in terrible condition and I doubt there is much to say about it, but I thought I would see. Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2: Specimen #3:
  9. Favosites?

    I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. They look to my untrained eye like Honeycomb Coral (Favosites sp.). Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2:
  10. What on Earth?

    Hi TTF! Since I am now going to present my science fair at the Ontario regionals, I have decided to add a few new displays to it. Right now, I am working on a model of the Earth during the middle Ordovician, when Pseudogygites Lantimarginatus lived. I have searched the internet for pictures of the middle Ordovician Earth, but each one is slightly different. For example, the location a Siberia changes with almost every map. I assume this is just because the different maps were made during different eras or by different people. Does anyone on the forum know which is the most up to date image? There are some images of the globe as it is right now below.
  11. Trilobite Science Fair

    Attention TFF members! I'm posting this to bring you an extremely important announcement! (For Me) For the past few months, I have been posting topics regarding Ottawa fossils and the Trilobite Pseudogygites latimarginatus. I have been doing this for research and information for my grade 8 science fair project. This experiment involved the relationship between Ordovician sedimentation and the average lengths of Pseudogygites latimarginatus. The title was, "The impact of Environment on the Biodiversity of Pseudogygites latimarginatus." Though, other possible titles included, "Another one Trilo-Bites the Dust," "Trilo-Bite Sized Science," "Don't Trilo-Bite the Hand that Feeds You," and "Trilo-Bite Me!" Last week, I fully assembled the presentation board and all other related displays. I presented my project to three judges (including professors and students from Carleton University) in addition to many other people who passed by. The following day, my school held an assembly which would announce the top 5 winners of the grade 8 science fair. After much delay and suspense on my part, it was announced that I had won first place in my grade! This means that I will get the opportunity to compete in the Ontario regional science fair this April! It turns out that one of the reasons why I won first place was because the teachers who were doing research on my project's nature (name pronunciation) stumbled upon my many posts on this website! I will continue to make posts on the forum. I think that I should give acknowledgement to all the TFF members who helped me achieve my goal, or contributed in any way! This includes all the people who helped identify my mystery fossils and gave fossil hunting advice and locations during these past few months. These are in no particular order. Thank you all! Acknowledgements: Kane Ludwiga Tidgy's Dad Fossildude19 WhodamanHD Manticocerasman Rockwood Auspex ynot abyssunder Arizona Chris erose Herb old bones snolly50 fossilDAWG caldigger Max-fossils Bobby Rico RyanDye
  12. Diplocraterion?

    Hi again! I have another unidentified fossil from the Billings. It is a brown or dark yellow coloured streak. I think it must be some type of ichnofossil. To me, it reminds me of some fossils of Diplocraterion. It could also just be a streak made from another mineral, such as calcite. It is preserved alongside one almost full-length crinoid stem impression and one 3 dimensionally preserved specimen of the aforementioned animal.
  13. A Spiral Of Confusion

    Another unidentified fossil from the Billings Shale Formation! This time, it's some kind of spiral shaped fossil. There are actually three in this one stone, and many more in other places, so they are fairly common. This fossil has a definite spiral shape, unlike the orthocone cross sections. Right now I think they are either some type of Gastropod, or a coiled ammonoid nautiloid cephalopod. Any ideas? I appreciate your help!
  14. Try-a-Bites!

    OK, I think I am kind of bending the rules on what constitutes paleo reconstuctions here. For the past few months I have been doing work and research for a Trilobite (Pseudogygites Lantimarginatus) themed science fair project for school. Now that it is February, the actual presentation of the project is approaching quickly. Since I enjoy baking and arts and crafts, and because I am a firm believer in the effectiveness of bribery, I wanted to incorporate something extra into my project. After hours of scouring the internet for all things Trilobite, I found a template for these Trilobite shaped cookies. After one night of hard work and over fourteen nights of doing nothing, the cookies are finally finished! Enjoy! (The pictures)
  15. Belemnites? Conodont?

    Greetings again TTF! The Billings formation is just filled with stuff that I can't identify! This time, I have found some glossy, cylinder-shaped things in the Billings Shale. I know that conodont elements are known from some parts Ontario and Quebec, but I think that it might be a belemnite as well. They seen to be associated with crinoid stems, brachiopods, and one Pseudogygites Lantimarginatus pygidium. They are each roughly one centimetre long. They are in the centre of the first picture and the second picture.
  16. U.T.F.! (Unidentified Trilobite Fixigena!)

    It's a UTF! I found this in an exposure of the Ordovician aged Billings Shale Formation. It's clear that it is a Trilobite fixigena, but I was wondering if a Trilobite genus can be identified from one alone? I have found three distinct forms of Trilobite in this formation: Pseudogygites pygidiums, Isotelus fragments, and Triarthrus head pieces. Any ideas? Thank you very much!
  17. What is this?

    I found this weird looking fossil on a trip to an exposure of the Billings Shale formation of Ottawa, Ontario. This formation is late Ordovician in age. It looks either circular or spiralish in shape. Does anyone know what this might be? Crinoid stem? Ammenoid? Nautiloid? Gastropoda? UFO Imprint? I really appreciate it!
  18. Crinoid?

    Is there anyone who would possibly agree that this fossil might not be from a crinoid? The dimensions are about 3cm long and up to 2cm wide. After viewing numerous fossils of this sort, in a Leonardian formation, they are rarely, if ever, found in groups of more than three, and the occurrences always look the same as in the images attached. If there is no doubt that it is a crinoid, would you please post which might show a convincing likeness? Other than curled arm or columnal (stem disc) I am at a loss and by far much less than a novice paleontologist. Thanks for any help and forgive me if my terminology is not spot on.
  19. Paleozoic Coral

    Some more coral from Lake Huron. Same genus as the Hexagonaria, or a different genus? I found two different individuals. I've got pictures of them both.
  20. Polishing Fossiliferous Stones

    I have found a number of fossiliferous paleozoic stones of various sizes, types, and quality, in a cretaceous conglomerate layer. I have included a picture of some of them. I rather like them because, although the fossils are not very high quality, it is neat to think about how they have been fossilized and eroded out multiple times. I was thinking about running them through a rock tumbler to polish them, but I am concerned that the hardness of the fossils compared to the rock might present some sort of issue. Does anyone have any thoughts on why this may or may not work?
  21. Cephalopod Shell Color!

    Hello all! Recently I have been obsessed with cephalopods and realized there is a real lack of reconstructions of the color patterns on extinct nautiloids and ammonites! This led me to compile a list of known fossil color patterns on cephalopods. After a year of on and off research, I found about 90 species of cephalopods retaining official or undescribed, original patterning on their shells. These are the first 15 species on my list. The color markings are based both on descriptions and photographs of the fossil material. The shades of the markings are based on the fossils, but also inferred. I Hope you will appreciate my work!
  22. The Llanvirn of Argentina

    ART 5.pdf As far as I could ascertain,not posted before.If I'm wrong sincere apologies to the previous poster outtakes: once again the same thing happens the upload takes too long ,and it goes wrong. Is anybody else experiencing difficulties when posting in "documents"? Case of butterfingers on my part?
  23. Old news

    As far As I could ascertain, not posted yet edit: Amazing Czech Open-Access Pdf Library on this very forum Posted by Piranha in 2013 you live & learn Šnajdr M. (1983): Revision of the trilobite type material of I.Hawle and A. J. C. Corda, 1847 Sborník Národního muzea v Praze, řada B - Přírodní vědy 39 (3): 129. [PDF fulltext] NB 35, Mb or thereabouts TAXONOMY warning:This is from 1983,remember!!
  24. Patriaspirifer duodenaris (Hall 1843)

    Found as surface float on the scree pile at the Kashong exposure. Originally assigned to Delthyris, reassigned to Spirifer, Acrospirifer, and Patriaspirifer. Alternate spellings: P. duodenaris, P. duodenaria, P. duodenarius. Does not appear in Fossilworks or Wilson’s “Field Guide to the Devonian Fossils of New York”. Classification information from Fossilworks entry for Patriaspirifer genus. Reference: Linsley, D. M. Devonian Paleontology of New York. (1994) Paleontological Research Institution Special Publication 21. Hall, J. Palaeontology of New York v. 4. (1867) Fossilworks. http://fossilworks.org Yale Peabody Museum Collections website (http://peabody.yale.edu/collections/invertebrate-paleontology)
  25. I'm looking to add a specimen to Collections (my blastoid, seen at this link: LINK), and I'm hung up on Order and Family. My field guide gave me the genus and species, and Wikipedia gave me the Class, but I can't seem to find any sites online that routinely show Order and Family--except TFF's Collections, which doesn't (yet!) include any blastoids. Can anyone point me to a resource where I can find this info for a variety of Devonian and Ordovician fossils?
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