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  1. Shale_stack

    Devonian ID help

    Could use a second opinion. Mahantango formation of the Devonian from Pennsylvania 1 a broken bivalve, brachiopod or crinoid? 2 shell material with a spiriferid brachiopod 3 brachiopod 4 crinoid? 5 crinoid and shell material? 6 fenestella bryozoan? 7 not sure maybe just the rock 8 fenestella bryozoan?
  2. Shale_stack

    Fossil help

    Mahantango formation of the Devonian from Pennsylvania USA
  3. Shale_stack

    ID help - Devonian

    From Pennsylvania. Mahantango formation of the Devonian. Would love your thoughts. I am so happy with my new property. 1 some kind of brachiopod 2 crinoids 3 some kind of brachiopod 4 no idea 5 Fenestella? with something weird (addition photos are 5*) 6 brachiopod? 7 Fenestella? 8 Spiriferid brachiopod 9 bryozoan? 10 its cool looking, partial brachiopod?
  4. Shale_stack

    Devonian help

    From my house in Pennsylvania with Mahantango formation of the devonian. I think I am getting the groove of this, thoughts? 1. crinoid 2 crinoid 3 bryozoan 4 Fenestella? 5 maybe the red is just part of the rock 6 is this a crinoid? 7. I cant tell 8. I cant tell 9 Fenestella? with crinoid
  5. Bringing Fossils to Life

    Devonian Scoleodont?

    I was recently looking at one of my cephalopod fossils when I came upon this. The only explanation I can come up with is that it is a scolecodont, the jaws of polychaete worms, and these have been found in the Hamilton group before (Arabellites sp.) However, I've never seen pictures of scolecodonts in which the jaw doubles back on itself as it does here. I included an interpretive drawing to show what I am seeing. The size appears to be a little bigger than what my book predicted scolecodonts to be; I cannot give a precise measure because my microscope does not show this information. Am I simp
  6. Thomas1982


    From the album: Mahantango Formation

    Bactrites Juniata County, Pennsylvania
  7. Thomas1982


    From the album: Mahantango Formation

    Mediospirifer with visible brachidium Schuylkill County, Pennsylvania
  8. Thomas1982

    Dipleura dekayi

    From the album: Mahantango Formation

    Dipleura dekayi Schuylkill County, Pennsylvania
  9. Thomas1982

    Another Mahantango mystery

    Hello all, I noticed something unusual when cleaning this rather large brachiopod steinkern. Frankly I am stumped: what do you guys think? Found in Perry County, Pennsylvania. Mahantango formation. Middle Devonian.
  10. Thomas1982

    Crinoid crown

    From the album: Mahantango Formation

    Crinoid crown Schuylkill County, Pennsylvania
  11. Thomas1982

    Eldredgeops rana

    From the album: Mahantango Formation

    Eldredgeops rana Schuylkill county, Pennsylvania
  12. Thomas1982

    Eldredgeops rana

    From the album: Mahantango Formation

    Eldredgeops rana Schuylkill county, Pennsylvania
  13. Bringing Fossils to Life

    Striacoceras attack reconstruction

    Here is a reconstruction of the orthocerid Striacoceras typum, eating one of the last surviving Eldredgeops rana trilobites. Two Botryocrinus crinoids wave in the current, and a colony of Pleurodictyum feeds on planctonic organisms.
  14. After work had the chance to try out a new (to me) outcropping of the Mahantango. While the rock I split was mostly out of situ there was exposure along a cliff that I avoided just to be safe. This area seemed to be a different environment than Mahantango spots I have hunted in the past. There was more crinoids and even some horn corals. I managed to find a few trilobites, mostly Eldredgeops though I did find a partial Greenops. My highlights were the largest Mahantango Eldredgeops I have personally seen (though I am sure someone on here has a larger one!) as
  15. From the album: A.C.'s Devonian Pennsylvania

    6 centimeters = 2.36 inches | A personal record for me.
  16. From the album: A.C.'s Devonian Pennsylvania

    Greenops (missing cephalon)
  17. Thomas1982

    Crinoid Crown

    From the album: Mahantango Formation

    Crinoid Crown Schuylkill County, Pennsylvania
  18. Thomas1982

    Crinoid Crowns

    From the album: Mahantango Formation

    Crinoid Crowns Schuylkill County, Pennsylvania
  19. Hey everyone! The other day me and a few other experienced collectors spent the day out in the Mahantango formation. After moving a literal ton of material we each came home with about 3 or 4 complete trilobites and plenty of other neat associated fauna. I found 2 different specimens that are incredibly interesting/rare a complete trilobite, Dechenella (I have to take the head off the counter part and glue it back onto the body after prep it will be fully complete.). This means I have a complete specimen of every species of trilobite in the Mahantango except the elusive and rare Neometacanth
  20. Dean Ruocco

    Dechenella sp.

    From the album: Pennsylvania trilobites

    Dechenella sp. Mahantango Formation Pennsyvania
  21. Thomas1982


    From the album: Mahantango Formation

    Hyolith Juniata County, Pennsylvania
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