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  1. Mainefossils

    Coprolite?

    I have just found this little coprolite? yesterday. This is the second time a coprolite-like fossil has turned up in the shale from the Leighton Fm. I am not really sure on this one, though, due to the presence of crinoid stems. The fossil(s) are from the Leighton Formation, Maine; which is Pridoli, Silurian. The main reason I think it is a coprolite is because of its situation in the shale. The rest of the shale around it is relatively uniform, with no fossils whatsoever. The fossils present in it are one crinoid stem, quite a few ostracods, a very small Orbiculoidea brachiopod,
  2. Mainefossils

    Phyllocarid valve?

    This morning I split this shale (technically it fell apart on me), and found this interesting little fossil. I was thinking that there was a possibility of it being a phyllocarid valve, but I have never seen one. This also raises a question that I have been wondering - how do you differentiate between a phyllocarid and a bivalve valve when the tail is absent? What raised my suspicions on this specimen are the raised bumps on the external mold and the depressions on the cast. The pictures below are of the specimen. The first shows the cast/internal mold, and the second the externa
  3. Thomas1982

    Is this a phyllocarid?

    Greetings, I found this in schuylkill county, Pennsylvania: part of the Mahantango formation. A couple people suggested that this could be a phyllocarid carapace, but I'm not sure... What do you guys think?
  4. Taxonomy according to Schram and Horner, 1978, p. 394. Diagnosis (Schram and Horner, 1978, p. 394): "Rhinocarid of large size; carapace covered with hairlike ornament; furcae about 1 ½ times as long as the telson." Dithyrocaris rolfei, reconstruction from Schram and Horner, 1978, p. 395. Identified by oilshale using Schram and Horner, 1978. References: Schram, F. R. and Horner J. (1978): Crustacea of the Mississippian Bear Gulch Limestone of Central Montana. Journal of Paleontology 52(2):394-406. Factor D. F. and Feldmann R. M. (1985): Systematics
  5. Our recently discovered Devonian Phyllocarid is back from our preparator. Found on Collecting trip 4/9/2021 in New York state (#3 Phyllocarids we have with complete mandibles). This rare specimen has the classic pyritized Roemerella brachiopods attached to its carapace and the detail of the carapace itself is well preserved. What I was hoping and had very little chance of being antenna are serrated hinge lines. I never seen this on other specimens and the detail is amazing under magnification. The pincher like mandibles look to have color or pattern markings near the tips. I'm pretty sur
  6. Fossildude19

    Echinocaris punctata Phyllocarid

    From the album: Fossildude's Middle Devonian Hamilton Group Fossils

    Echinocaris punctata Phyllocarid Middle Devonian Hamilton Group, Moscow Formation, Lebanon, NY - Deep Springs Road Quarry

    © 2021 T. Jones

  7. I just took my Phyllocarids out of storage and put them back on display in the collection room. All of these extinct crustaceans were found in New York State. Two of the specimens have their complete mandibles (jaws) and all three Devonian Phyllocarids have their telsons (tails). The Silurian Phyllocarid from the Pittsford Black Shale is extremely rare. These are rare fossils and complete specimens are absent in most collections. They have been in boxes for a few years now and it didnt feel right keeping them in the dark. Most people that view my collection don't understand or find them intere
  8. Phyllocarid Collecting trip 4/9/2021 Devonian N.Y. A beautiful Echinocaris punctata (Hall) with mandibles and antenna. This is as found unprepped and awesome. You can see the complete mandibles under the carapace, attached pyritized brachiopods, and a first for me, pyritized antenna. Happy collecting!
  9. Last Saturday as some of you know, I found this really awesome Echinocaris punctuata with both valves and part of the telson. I had the idea of prepping it and then entering it into the IFOTM contest here on the forum. I’ve been working on it for 1 or 2 hours a day using pins and an old screwdriver. In this post I plan to post an image of the prep process everyday until it is complete.
  10. From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, New York Collected 7/18/20
  11. Nautiloid

    Rhinocaris valve from DSR

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Springs Road Lebanon, New York Collected 7/18/20
  12. Nautiloid

    Complete Rhinocaris

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Spring Road Lebanon, New York Collected 7/18/20
  13. Nautiloid

    Echinocaris from Brookfield, New York

    From the album: Phyllocarids

    Echinocaris punctuata Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, NY Collected 7/18/20
  14. Nautiloid

    Rhinocaris valve

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, New York Collected 7/18/20
  15. Nautiloid

    Rhinocaris valve

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, New York Collected 7/18/20
  16. Nautiloid

    Rhinocaris valve imprint

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, New York Collected 7/18/20
  17. Nautiloid

    3D Rhinocaris telson

    From the album: Phyllocarids

    Rhinocaris columbina Middle Devonian Hamilton Group Upper Ludlowville Formation Brookfield, New York Collected 7/18/20
  18. Fossildude19

    Unidentified Phylllocarid telson

    From the album: Fossildude's Middle Devonian Hamilton Group Fossils

    Unidentified Phyllocarid telson either Rhinocaris columbina or Echinocaris punctata Middle Devonian Windom Shale. Moscow Formation, Hamilton Group. Deep Springs Road Quarry, Lebanon, NY. Found on April 27, 2019

    © 2019 T. Jones

  19. Both carapace valves as well as the almost complete telson are present. The telson is wrapped underneath the carapace and one valve is underneath the other.
  20. I just received this "phyllocarid" valve from the Marjum Formation (Middle Cambrian) of Utah. It was sold as Canadaspis perfecta. It measures about 1" long and 3/4" tall. Although I don't have a compass, the angles between the hinge line and both the anterior and posterior margins of the valve look to be less than 100 degrees. Several papers I've read state that these angles are usually closer 120 in Canadaspis. Any thoughts on what this might be?
  21. The authors have just informed me, that a tiny Phyllocarid I sent them for study, was included in a recent publication of the Journal of Paleontology. (Collette and Plotnick, 2020 JP Gonatocaris) Part of growing from hobbyist to citizen paleontologist is helping our knowledge of fossils grow. It is always fun finding a fossil and then finding exactly what you found. The picture I included is one I took soon after finding it at Ridgemount Quarry. It is Late Silurian in age and found in the very same layers that Eurypterids are found.
  22. Nautiloid

    Echinocaris phyllocarid

    From the album: Middle Devonian in Central New York

    Echinocaris punctuata partial carapace Middle Devonian Hamilton Gr. Marcellus Shale? Delphi Falls, New York Collected 5/16/20
  23. Yesterday I was able to get out to Onondaga County in central NY. While I was there I got a chance to do some fossil hunting at two locations. The first was in Pompey Center, NY near Pratt’s Falls. The second location was a creek in Delphi Falls. The rock at both of these locations was the Skaneateles formation. I was able to get into a different formation at the second spot that was more shaly and had better preservation. This was my first time fossil hunting in the middle Devonian and I was amazed with the number of bivalves I found. (I’ve never found one in the lower Devonian near me). As w
  24. Hey everyone! Back at it again. This time I’ll keep it a little shorter and get to the fossils. I made it back out into the field last weekend and visited DSR and Cole Hill on Sunday 3/29/20 with fellow forum goer @DrDave. Usually we shake hands on our hellos and goodbyes like any two people would. It was odd not giving the usual greetings with a friend and keeping distance during social interaction. Almost feels rude it’s a weird feeling. You almost have to say “sorry I can’t touch you” so you don’t seem rude lol. Unusual times we must adjust to. Anyway. At DSR I have be
  25. Hello awesome people! Im finally out of hibernation . I don’t mind fossil hunting in the winter...as long as the snow isn’t deep. It’s been deep lately lol. So the winter hunts have been non existent pretty much. We finally had a good enough thaw and a warm enough weekend to make collecting possible! I went fossil collecting and fossil prospecting this past Saturday and Sunday (March 7th and 8th 2020). It was great getting back out in the field. what a sight!! The snow didn’t bother me I was happy it was well above freezing for once. South cen
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