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Showing results for tags 'Devonian'.
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From the album: Invertebrates
Regulaecystis pleurocystoides DEHM, 1932 Early Devonian Emsian Kaub Formation Bundenbach Germany Length 8cm /3" -
Hi, I was driving along the NY State Thruway recently and stopped at several roadcuts in Devonian limestones. I picked up a big chunk of chert that had interesting fossils in it. I think they are crinoid column segments seen edge-on and end-on, but I'm not sure. They are all encased in chert and they are not CaCO3 (they don't fizz in HCl). Does anyone have any other ideas? Thanks for any help, Bob
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Taxonomy from Fossilworks.org. Description (Südkamp 2017, p. 100): "The flattened theca is angular and trapezoidal in outline. The large angular anal field is positioned in the centre of one side of the theca (the anal), allowing it to be distinguished from the other (the abanal). The delicate plates are organized in large arcs across the abanal side. The peripheral rim is flat. The stem is very long. The body-oriented part consists of alternating simple and large collar ring-like elements. The more elongate distal elements are barrel-shaped. The long and slender uniserial brachiales are in the exothecal projections for food-gathering. Name meaning: Regula = Leiste, pleuro = to the side, lateral. Identified by oilshale. References: Dehm, R. (1934) Untersuchungen an Cystoideen des rheinischen Unterdevons. Sitzungsberichte der mathematisch-naturwissenschaftlichen Abteilung der Bayerischen Akademie der Wissenschaften zu München. 1934 Heft 1, p 19-43, 2 Tab. Nardin, E. and Bohatý, J. (2013) A new pleurocystitid blastozoan from the Middle Devonian of the Eifel (Germany) and its phylogenetic importance. Acta Palaeontologica Polonica 58 (3): 533–544. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
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I’ve been doing a lot of river collecting this year and found some a couple of items have really stumped me. I’m hoping you all can help me identify them. The river I collected them from is in Middle Tennessee and is a mix of Ordovician and Devonian (from Chattanooga Shale) As always, thank you for your assistance! Note: Some of these pics were taken through my 10x BelOMO.
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My wife and I made our 2nd trip up to Deep Springs Rd on Saturday. Nothing spectacular but figured I would share our finds. Also posted a couple items in the identification forum. Grids are quarter inch. Starting with a mortality plate. I like this one because its a nice flat plate and easy display piece with several different shell types represented:
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Got up to DSR for the 2nd time yesterday. Didn't have anything spectacular but will post some finds over in the trip forum. (Deep Springs Rd, Devonian, NY) Had 2 items I can't identify. First up is a 3/4 inch long piece: Second is a rather undefined semi-oval blob. I have both dry and wet views:
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I found this thing when I was sorting through the haul from a recent trip to Paulding (Silica Shale, Devonian). I have no idea what it is. Only thing I thought of is some kind of fish bit, really just because it doesn't look like anything else from Paulding that I'm familiar with. Any ideas?
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I had the pleasure of attending the recent Penn Dixie Dig With The Experts and had the opportunity to catch up with some old collecting friends and make some new ones. As one of the people helping out collectors and cutting a heck of a lot of bugs out of rock for people I had the opportunity to see most of the really awesome bugs found that weekend. Without a doubt this one found by Scylla's son was one of the best and one of the rarest finds to be had a Penn. Gus and his son were kind enough to trust me with their prize find. The bug was damaged a bit and split between two sides of the matrix. I will look at repairing some of this at the end of the prep. Regardless this is a huge bela and has remarkable preservation. This is being prepped with relatively low PSI dolomite / sodium bicarbonate mix with some minimal scribing using a Pferd MST-31 with fine stylus. At the point of this picture I have already trimmed down the counter part to make it ready for reassembly. Reassembly was by super thin cyano acrylate clamped for 24 hours
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I collected today in an exposure of the Helderberg Group in NY. The Helderberg Group is Lower Devonian, and rich in marine fossils. We found this in the mine and could not come up with any kind of ID. It is possibly part of a horned coral? Or a brachiopod? Please let me know your thoughts. I can also provide more photos if necessary, I tried to capture the different angles. It is an interesting thing.
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I have been collecting fossils for a long time but am fairly new to preparation beyond scrubbing and light picking. I had the opportunity to collect at the Bob Carroll quarry near Clarita, Oklahoma last month. We got chased out by rain after just a few hours and when I left I wasn't sure whether I really had any decent trilobites or not. I knew I found some nice brachiopods and some cool trilo-bits (even the tails of the Huntoniatonias are pretty neat) but beyond that nothing else was obvious. I'm still working through the material I collected but I wanted to solicit some advice on two that I am working on as I have never really done this much prep on any specimens. The first one is a Paciphacops campbelli that was just a glimmer of hope: After working on it for a while with an air scribe and air abrasive (dolomite) I have gotten it to this stage:
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I am wondering if this hash plate from Penn Dixie has the cephalon imprint from a large trilobite, or is it from something else?
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I Love Devonian Corals Favosities, Moscow formation, Livingston County, NY.
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While cleaning the brachiopods which I found on my recent trip to Penn Dixie, I noticed something that I cannot identify. I initially thought it was a shell fragment due to the white color. Upon closer inspection, I thought it might be a bryozoan? Now I’m wondering if it could be a tiny crab?
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Do I see beekites on my coral sample?
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Taxonomy from Fossilworks.org. Description from Südkamp 2017, p. 132: " Medusaster is a small ophiuroid with generally 11 to 15 arms. They are slender, taper in the distal part and end in blunt extremities. The disc has the same size as the mouth frame, which included the robust mouth-angle plates together with the large triangular second ambulacrals. The ambulacrals are fused into half vertebrae which are mostly aligned with their opposites. The laterals are sickle-shaped and bear some slender spines." Identified by oilshale. References: Stürtz, B. (1890) Neuer Beitrag zur Kenntniss paläozoischer Seesterne. Palaeontographica 36: 203-247. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
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From the album: Invertebrates
Medusaster rhenanus Stuertz, 1890 Lower Devonian Lower Emsian Bundenbach Germany -
Platystoma ventricosa with Leptocoelia flabellites
Bguild posted a gallery image in Member Collections
From the album: Eastern NY Fossil Hunts
Platystoma ventricosa Leptocoelia flabellites Devonian Found in 2018 from Glenerie, NY -
From the album: Eastern NY Fossil Hunts
Tentaculites Devonian Found in 2018 from Glenerie, NY -
From the album: Eastern NY Fossil Hunts
Acrospirifer arrectus Devonian Found in 2018 from Glenerie, NY -
From the album: Eastern NY Fossil Hunts
Discomyorthis oblata Devonian Found in 2018 from Glenerie, NY -
From the album: Eastern NY Fossil Hunts
Chonetes hudsonica Devonian Found in 2018 from Glenerie, NY-
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From the album: Eastern NY Fossil Hunts
Leptocoelia flabellites Devonian Found in 2018 from Glenerie, NY -
From the album: Eastern NY Fossil Hunts
Platystoma ventricosa Devonian Found in 2018 from Glenerie, NY -
Acrospirifer arrectus, Chonetes hudsonica, Platystoma ventricosa
Bguild posted a gallery image in Member Collections
From the album: Eastern NY Fossil Hunts
Acrospirifer arrectus Chonetes hudsonica Platystoma ventricosa Devonian Found in 2019 from Glenerie, NY. -
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From the album: Eastern NY Fossil Hunts
Acrospirifer arrectus Devonian Found in 2018 from Glenerie, NY.-
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