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Found 18 results

  1. Trilo-bits

    I just went through my bag of trilobits from this summer. Most are identified. I am getting better with time!! Here are a few Small pygidiums, all between 1 and 2 cm. These small non descript tails are hard for me to identify. If there are ones that stand out, let me know, and why you think so! That way I will know for next summer's specimens. They are numbered. Thanks, Mike
  2. Trilobite Pygidium ID

    This morning I was going through a bucket if Black Cat Mountain matrix a friend gave to me. I found this nice negative of a large trilobite Pygidium. I wonder if some one might know the species. Thank you
  3. Devonian trilobite pygidium

    Found in Arkona, Ontario Age: Devonian Size: about 18 mm/0.75 inches Any ideas?
  4. Trilobite Pygidium

    I am finally getting most of my trilobite parts identified but still need some schooling on this pygidium: It was found in the Platteville/ Ordovician in SW Wisconsin. It is 4cm by 4.5 cm In addition, these two plates contain what I thought were just pieces of Isotelus, but the more I looked, the more I questioned my thoughts. Agree or change the ID? These plates are 12 inches by 6 inches. The asterisk's mark where the specimens are.
  5. Pseudodechenella?

    I was going through some containers from a few years back when I returned to collecting, and it had a bunch of pieces I had collected from my mixed fill location (lower to mid Devonian). I came across this little pygidium. The squares are 5 mm x 5 mm. Going through some of the literature to compare photo plates from Ludvigsen and Lesperance, as well as scanning the Proetids in Levi-Setti and Whittington, there just didn't seem to be a perfect match. The axis sits fairly high on this one, a little like Mannopyge halli, but unlike the M. halli does not have the terminal nodes. The axis "points" downward rather dramatically, and has some apparent incisions. There is a small but distinct margin on the pygidium that made me think one of the Dechenella types. I've tentatively labeled it Pseudodechenella although I am not comfortable with that identification for this one. The Pseudodechenella I usually find don't have this very pronounced axial feature, and usually have a kind of smoother shell on the pygidium. I may be overthinking this, but I put this one out there for our Devo bug experts. Much appreciated for any help on this one.
  6. Trilobite cephalon and pygidium

    Hi folks. At first glance, I labeled this cephalon an Eldredgeops but it doesn't compare well with other examples in the area behind the eye where the "dimples" are. There is also a sort of "horn" projecting from the upper rear portion of the eye. Just not certain about this one. Could just be deformation ? Then the nice size greenops pygidium. Wow, I'd love to find a complete one this size ! Thanks, Regards.
  7. Trilobite pygidium, Greenops ?

    Hi folks, This looks like a Greenops pygidium but has slightly different spikes than images searched for ref. This was in my typical dig area. Devonian, mahantango, eastern WV. It is quite fragile and was very difficult to expose without totally destroying it. Can you verify / determine the species ? Thanks ! Cheers.
  8. This is #8 and #9. Both were in the same split of shale. The larger one was barely visible, just 1/2 of the fwd center ridge. Took quite a bit of digging to expose it. I was pretty sure what it was, getting used to the little clues. Thanks again !
  9. Trilobite pygidium

    Found #6 last night. Only a small portion was exposed, I scratched the matrix away to expose the rest. I wish I had learned earlier what to look for more specifically. I am certain that I have overlooked more of what I am looking for than what I have found. Thanks again to all for you guidance, experience and willingness to contribute. Kindest regards.
  10. Quickisode: Trilobite Anatomy

    Hey everyone, I thought that I would talk about trilobite anatomy. I have been using some complicated terms, and I want to make sure that we are all on the same page. So please watch the movie and enjoy!
  11. Asaphidae pygidium 2 - view 2

    From the album La dominelais - spring 2016

    An asaphidae pygidium found in La Dominelais on spring 2016 Ordovician, Landeilian (-460 MA)
  12. Asaphidae pygidium 2 - view 1

    From the album La dominelais - spring 2016

    An asaphidae pygidium found in La Dominelais on spring 2016 Ordovician, Landeilian (-460 MA)
  13. Asaphidae pygidium - 1

    From the album La dominelais - spring 2016

    An asaphidae pygidium found in La Dominelais on spring 2016 Ordovician, Landeilian (-460 MA)
  14. B23

    From the album Marjum Formation

    Bathyuriscus pygidium about 3cm long. Marjum Formation, Mid-Cambrian, outside Delta Utah.

    © ©2016 Zach Case

  15. B20

    From the album Marjum Formation

    Bathyuriscus Pygidium (and thorax section) about 2cm long. Marjum Formation, Mid-Cambrian, outside Delta Utah.

    © ©2016 Zach Case

  16. B18

    From the album Marjum Formation

    Bathyuriscus Pygidium about 3cm wide. Marjum Formation, Mid-Cambrian, outside Delta Utah.

    © ©2016 Zach Case

  17. Unknown Trilobite Pygidium

    From the album Fossildude's Middle Devonian Hamilton Group Fossils

    Possibly Pseudodechenella rowii?? 18 Mile Creek, Near Hamburg, NY. Middle Devonian. Hamilton Group

    © © 2011 Tim Jones

  18. Greenops Pygidium

    From the album Fossildude's Middle Devonian Hamilton Group Fossils

    Pygidium of Greenops sp. Middle Devonian, Windom Shale Hamilton Group, Near Buffalo, NY.

    © ©2011 Tim Jones