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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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  1. 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.
  2. Mesoceph

    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 t
  3. Mesoceph

    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
  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 o
  5. Mesoceph

    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
  6. Pseudogygites

    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-
  7. Pseudogygites

    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? Th
  8. Pseudogygites

    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.
  9. Pseudogygites

    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!
  10. Pseudogygites

    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
  11. Pseudogygites

    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.
  12. 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!
  13. Pseudogygites

    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!
  14. Squirrel

    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
  15. Cloud the Dinosaur King

    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.
  16. dolevfab

    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, bu
  17. Cowboy Paleontologist

    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?
  18. Its not often that I find something unrecognizable from the Cincinnatian. This was found last month in the southern extension of the arch that outcrops around Nashville. Any ideas?
  19. doushantuo

    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?
  20. doushantuo

    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!!
  21. Mediospirifer

    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. (1
  22. 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?
  23. gturner333

    Paleozoic fish tooth?

    I found this little tooth while going through some bulk sample from Jacksboro, TX, which is a Pennsylvanian area. I have found shark teeth there, but this looks more like a fish tooth. It reminds me of an Enchodus tooth, but I am not aware of any that were in the Paleozoic. Any ideas? The scale hash marks are 1mm. Thanks for any help.
  24. doushantuo

    classical observations

    Thought it would be nice to post an oldie(1922)** yakowecolinteractgastropcrinoidZoolAnzc1922_0291-0294.pdf The author "leans towards" Simroth's theory that commensalism (and/ or mutualism)evolved from "parabiosis*",because the gastropod can sometimes be found attached to the crinoid stele . *apparently:the simple phenomenon of attachment,without connotations about causes or substrate preference . The frequent (obligatory,almost?)co-occurence of the fossils is explained by the life-long interaction itself: when the crinoid dies,the gastropod dies. (probable natici
  25. Hi all, I am looking to obtain some more brachiopods for in my collection, mostly because I think that it's a fascinating group of animals. Unfortunately, I do not have many of them. Therefore I'm asking the help of you all! This is what I want: Brachiopods (spiriferid or not) from any continent (preferably not from Europe) from the Paleozoic. I don't need a lot, just a few different ones to widen my collection! Having from many different locations would be nice too. I already have the following though, and as to avoid having duplicates I am not interested in these:
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