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

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  1. Hello, I have a question about the great ordivician biodiversification events (GOBE). I know this series of events happened between the late cambrian and the late ordivician but are there more specific dates for it? For example like the great dying was about 250 million years ago. I couldn't find anything more specific then late cambrian to late ordivician but if you know something more specific or you know that there isn't a more specific date please tell me, I would love to know!
  2. I prefer to find my own fossils, but over the years I've been given a handful of things by friends and family. Most of these were given with no accompanying information about the location where they were found or the geological age. I'd be very appreciative of any information people here can give.
  3. Hello everyone, I recently got some fossils from Russia, some plant remains from Perm Krai where I grew up and a couple of Productid brachiopods from Sverdlovsk Oblast. They are from the Artinskian stage of the Permian period, one is around 2.5cm in width while the other even though incomplete is absolutely gigantic, the largest I have in my collection. I am not great at identifying Productid brachiopods and the Permian is probably the period I have least experience with within the Paleozoic so I have not been able to ID them myself. The large one looks similar to some Reticula
  4. Hello everyone, I apologise in advance for the lower quality photos, my phone is quite old and the camera is going. Anyways, I was down in Cape May this past weekend and I decided to beach comb on sunset beach. i found several interesting items, and I was wondering if I can get some input regarding what they are. The first two images seem to be a similar type of fossil (if it is one). I am wondering if it could potentially be Paleozoic (if anything?). However, I am not sure exactly what it is, nor the material that it is made of. The third image I think co
  5. AlaskaMan

    Trying to Identify Marks on Geode

    I found what I think is a geode in a small stream here in Vigo County, Indiana. Brought it home and discovered all these unusual circular patterns along the narrower edges. Looks like urchin but I have not been able to find a similar type online. It does not feel hollow. Has anyone seen a similar surface patter on another specimen?
  6. I've had these for close to 20 years now and have shown some of them before but figured it was time to do a proper job of looking for info. (If I did before, I can't find the topic) I know nothing about these, either ID or location. They were part of a batch of fossils I received from an old rockhound couple in Nanaimo, which wasn't too carefully curated (a common problem with rockhounds/casual fossil collectors). Looking for info on the mystery items from that lot is what brought me to the Forum in the first place more than 10 years ago. I know Riley's Canyon, Utah has red corals, b
  7. Hopefully I'm not breaking any rules here posting a link. I spent my weekend finally putting my catalog into a proper database, and creating a user interface for it. I used to use Google Sheets, which is pretty great. If I wanted to, I could use them as the source of data, but I decided to create a proper MYSQL database so I can keep relationships across tables, such as the stratigraphy of particular find locations. I have many more improvements coming for it, but it is at least functional right now. Everything from CG-0001 to CG-0161 is from the Glenshaw Formation, Conemaugh Group
  8. Is anyone familiar with the Paleozoic formations on Bear Mountain, just northwest of Silver City, New Mexico? I have collected there a couple of times but am unsure as to which formation I was sampling. My first guess is that it is the Andrecito Member of the Lake Valley Limestone (Mississippian (Early Osage) but I know that there are also fossils found in the underlying Devonian Percha Shale, especially east of Silver City. There are a variety of brachiopods, bryozoans, rugose corals, and some crinoid bits. The photos show one of the larger brachiopods. Do you recognize it? Thanks.
  9. paleo.nath

    Colonial Rugose Coral ID

    This colonial rugose coral was found in Clarksville, TN and was sent to me just a few days ago and i’m not very well versed in Cnidarian classification, any ideas on a species?
  10. doushantuo

    carboniferous locomotion

    NORWEGIAN JOURNAL OF GEOLOGY,v 100,2-6 Transition from swimming to walking preserved in tetrapod trackways from the Late Carboniferous of Bjørnøya, Svalbard Seán Thór Herron, Edward James Fleming, & Michael John Flowerdew size:slightly less than 7 mB LINK
  11. Crankyjob21

    What the heck is this?

    I don’t know where it was found or how old was it is. I found it at one of the cave the mounds sleuthing sites in Dane county Wisconsin, its about 3cm long and looks a bit like coral.
  12. paleo.nath

    Sphenopteris?

    This fossil was found at the North Attleboro fossil site, and I’ve had it marked down as a species of Sphenopteris but i’m not 100% certain
  13. Praefectus

    Schellwienella sp.

    Fossil brachiopod Schellwienella sp. EDIT: Updated pictures and stratigraphic information.
  14. Praefectus

    Diaphragmus cestriensis

    Fossil Brachiopod Diaphragmus cestriensis EDIT: Updated pictures and stratigraphic information.
  15. paleo.nath

    Eurypterid ID help

    I was given this Eurypterid fossil a while back and I was looking to see if anyone had any ideas towards a species, i’ve got no idea where it came from other than somewhere in the New England/Canada area. Someone has told me it looks like an Adelophthalamus but id like some more opinions. Thank you
  16. Moose Man

    Cephalopod fossil?

    Relevant info first: This was found in Petoskey Michigan while looking for Petoskey stones. It was found in partially buried in sand. It is quite large and rather heavy. As pictured in picture 5, there is some sort of opening at the end? I can't get a very good picture of the inside, it's hard to get light where i need it and take a picture. the hole looks to maybe be about a 1/2 mm deep, and less than that wide. I took to reddit, albeit with less detailed photos and was told it was a straight shelled nautiloid cephalopod from the paleozoic, and that it was a brevicone, which I'm hoping someon
  17. Crankyjob21

    The heck is this?

    Some sort of badly damaged arthropod? Do not know where it was found. Wavy lined one is around 2 cm in length Thicker one which looks like a head shield is around 1 cm in diameter and one in a half cm in length
  18. Hi, Recently acquired "Earth before the dinosaurs" book by Alain Beneteau. Published by Indiana University Press. Very comprehensive and well illustrated position. There are not too many books regarding paleozoic vertebrates. It gives good sense how the life looked like in the late paleozoic time. How much diversified early amphibians and mammals-like reptiles were. It is more a popular science book, but a good one. Tom
  19. I'm working up a series of fossil field guides for various formations. I'd like to provide a visual indicator of which fossils are rare, which are common, and which are abundant, without getting in the way of the visual layout of the fossils & identifying information. The complete set of categories I am working with is {Abundant, Common, Rare, Very Rare, Common to Abundant, Rare to Abundant, Rare to Common, Present, and Questionable}. Has anyone seen a good way that a field guide of any kind has provided such a visual indicator as a page-wide element of visual layout? Attached is my first
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