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Showing results for tags 'lower devonian'.
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I’m almost done prepping this gastropod I found a couple weeks ago at the roadcut along Rickard Hill Rd. in Schoharie, NY, but I am unsure of the species. It is from the Lower Devonian Kalkberg formation.
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I recently broke open a few slabs of rock I took home with me from Rickard Hill Road in Schoharie the last time I was there. The rock was very crystalline and hard to break and there weren’t a ton of fossils inside. I did manage to find a couple of trilo-bits that were very well preserved and very detailed. One of these bits I’m having a bit of trouble identifying. I’m almost certain it’s a trilobite pygidium but it looks like nothing I’ve ever seen before. The great preservation makes the details of the shell stand out. It is around 1cm long and wide.
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Brachiopod and bryozoan hash plate from the Kalkberg Formation
Nautiloid posted a gallery image in Member Collections
From the album: Lower Devonian Helderberg Group in Eastern NY
Plate of brachiopods including Howellella cycloptera, and bryozoans including Fenestella crebipora. Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Roadcut Schoharie, New York Collected 5/31/20 -
From the album: Lower Devonian Helderberg Group in Eastern NY
Favosites helderbergiae Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Roadcut Schoharie, New York Collected 5/31/20 -
From the album: Lower Devonian Helderberg Group in Eastern NY
Actinopteria textilis Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Roadcut Schoharie, New York Collected 5/20/20 -
I found this fossil last weekend at the road cut along Rickard Hill Road in Schoharie, New York. It is from the Lower Devonian Kalkberg formation. The surface has no texture at all. The fossil has a thickness of about 1mm. Originally I thought it was less than 2 inches long and wide but I was able to prep out the rest of the fossil due to the softness of the matrix. It is about 3 inches wide and long.
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Well detailed spiriferid brachiopod valve from the Kalkberg formation
Nautiloid posted a gallery image in Member Collections
From the album: Lower Devonian Helderberg Group in Eastern NY
Howellella cycloptera Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20 -
From the album: Lower Devonian Helderberg Group in Eastern NY
Dalmanites pleuroptyx? Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20 -
From the album: Lower Devonian Helderberg Group in Eastern NY
Tentaculites elongatus Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20 -
Unidentified bryozoan from the Kalkberg Formation
Nautiloid posted a gallery image in Member Collections
From the album: Lower Devonian Helderberg Group in Eastern NY
Unidentified large bryozoan from the Lower Devonian Kalkberg formation. Collected 5/31/20 Rickard Hill Rd. Schoharie, NY -
From the album: Lower Devonian Helderberg Group in Eastern NY
Enterolasma strictum rugose corals from the Lower Devonian Kalkberg formation. Collected 5/31/20 Rickard Hill Rd. Schoharie, NY -
From the album: Lower Devonian Helderberg Group in Eastern NY
Hindia sphaeroidalis sponges from the Lower Devonian Kalkberg formation. Collected 5/31/20 Rickard Hill Rd. Schoharie, NY -
Spiriferid brachiopod from the Kalkberg formation
Nautiloid posted a gallery image in Member Collections
From the album: Lower Devonian Helderberg Group in Eastern NY
Trematospira perforata from the Exposure of the Kalkberg formation along Rickard Hill Road in Schoharie. -
I found this brachiopod today in Schoharie, New York. Its from the Lower Devonian Kalkberg formation and it’s by far the best brachiopod I’ve ever found. It’s super detailed and it’s absolutely perfect (except for some matrix that still needs to get cleaned off). I’m unsure of the species so any help would be great.
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Hi all! Yesterday I visited Formosa Reef here in Ontario (Amherstburg Formation, Lower Devonian), and I found these weird circular imprints on a few rocks - does anyone know what they are? @Kane Thanks a bunch! Monica photo with ruler for scale: close up photos:
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Today I was able to get out to the outcrop along Rickard Hill in Schoharie, New York. I didn’t find a ton of interesting things because I was looking in a more crystalline layer of the Kalkberg formation that had less abundant fossils. I found a handful of nice orthid, spiriferid, and atrypid brachiopods and one fenestellid bryozoan. Next time I go I’m going to try and get into a different, more fossiliferous layer because the crystalline rock is hard to break and when it does it breaks randomly, often damaging the fossils.
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Today on a hunt in the lower devonian of new york, I found on of the most unusual piece and I can't decide if its bryzoan or possible placoderm.
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Hi everyone! I was just looking through some of my fossils yesterday, and I noticed the following item on one of the rocks I collected from "Formosa Reef" in Ontario, Canada back in March. These rocks are from the Amherstburg Formation and are Lower Devonian in age. Could this be a trilo-bit? Or is it something else? I'll tag @piranha and @Kane to see if they have any ideas. Thanks in advance for your help! Monica The whole rock with the unknown item circled in red: Close-ups and different views of the unknown item:
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Here a partial collected last week from the New Scotland Formation near Port Jervis NY. The list of trilobites found in this formation (in NY) is short. So will say it looks like Dalmanites pleuroptyx. Cheers, Gordon
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Acanthopyge contusa hypostome to the ROM
Monica posted a topic in Partners in Paleontology - Member Contributions to Science
Hello everyone! I wanted to share some good news with you all... On Monday, March 16, 2020, I visited "Formosa Reef" in Ontario (Amherstburg Formation, Lower Devonian) for a little fossil hunt. One of the rocks that I found at the site had a trilobite piece that @piranha identified as the hypostome belonging to the trilobite Acanthopyge contusa. When I asked him if he knew of any museum/researcher who might be interested in my specimen, he suggested that I contact the Royal Ontario Museum (ROM), and so I did. First, I emailed David Rudkin, and this is what he said: "Thank you very much for getting in touch and offering to donate your splendid little Acanthopyge hypostome! I've been retired from the ROM for 3 years now and am not permitted to act on behalf of the Invertebrate Palaeontology section, but I am copying these messages to the Curator and Collection Manager with my recommendation to accept your generous offer." "Acanthopyge contusa is indeed a relatively rare component of the Formosa trilobite fauna and the ROM collections do not hold any specimens of the elusive hypostome. Like your contact on The Fossil Forum I've not seen one from Ontario before, so your discovery is quite exciting ... at least for a self-professed trilobite geek such as myself! I'm hoping that my ROM colleagues, Dr Caron and Ms Akrami, will follow my recommendation to accept your offer, but I must leave the final decision in their hands." Just last night, I received two consecutive emails from Maryam Akrami (the current Invertebrate Paleontology Collections Manager at the ROM): "Thank you for sending the images and the information for the trilobite specimen. I am glad to let you know that we will accept your offer of donation. Just want to let you know that the ROM is closed until at least 5th April. If you would like to ship the specimen to us now, I can give you my home address. Once we have the specimen, I will send you a letter acknowledging your generous donation to the ROM." "Following up on my previous email (below), given the current situation and the advise against leaving our homes for non-essential reasons, perhaps it would be a good idea to wait till things return to normal and then ship the specimen to us. I hope that would be ok with yourself." So, once the ROM is up and running again, I'll be handing over my little Acanthopyge contusa hypostome to the ROM! I'll update this thread as soon as the donation has been completed. Here are pictures of the specimen in question: Thanks for reading, everyone! Monica
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Hi all! After reading about @Kane's autumn trip to Ontario's Formosa Reef (Amherstburg Formation, Lower Devonian), I was inspired to find it and check it out myself. With the help of Ludvigsen's 1986 paper entitled "Reef trilobites from the Formosa Limestone (Lower Devonian) of southern Ontario," along with Google Maps' Satellite View, I was able to locate the reef, so Viola and I made the 2-hour drive yesterday to search the site for some new fossils. Here's Viola standing atop the reef: This was my first find of the day - a rock with a brachiopod AND a gastropod in it - woohoo!!! This was one of Viola's first finds of the day and probably her favourite - a large and beautiful chunk of tabulate coral: Here is a photo of Viola and I just before we left the site after about 3 hours of fossil-hunting: Photos of the fossils to come...
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I had already planned on sharing this a couple days ago. With the recent posting of the Martian pseudocrinoid, the timing of this new paper is perfect! Bonus Points Question: Trombonicrinus (col.) hanshessi gen. et sp. nov. Does anyone have a suggestion for the use of the abbreviation (col.)? A colleague responded: "Odd. I imagine it is for column, but do not really know. If so, it would be as if they are regarded it as a form genus allowed in the botanical, but not the zoological code." Etymology: From the French trombone (earlier, trombon), a brass wind instrument with a slide bent in a tight U-shape (Little et al. 1983, p. 2368). The overall appearance of this crinoid stem is reminiscent of the slide of a trombone. Donovan, S.K., Waters, J.A. and Pankowski, M.S. 2018 Form and function of the strangest crinoid stem: Devonian of Morocco. Swiss Journal of Palaeontology, (ahead-of-print publication) 6 pp.
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From the album: MY FOSSIL Collection - Dpaul7
Kainops invius Trilobite Bois d’Arc Formation, Oklahoma Lower Devonian (359-383 Million Years Ago) Kainops is a genus of trilobites from the family Phacopidae, order Phacopida. It can be distinguished from Paciphacops by the greater number of facets to the eye (6–8 per row, compared to 3–4 in Paciphacops). The form of the furrow between the palpebral area and the palpebral lobe also distinguishes Kainops from the genera Paciphacops and Viaphacops. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Kainops Species: †invius -
Several weeks ago a brief break in the weather and snow cover permitted a hike in Montague where we saw a modest outcrop of the Port Jervis Formation. A similar short spell of nice weather earlier this week, it is snowing now, afforded the opportunity to check it out. The characteristic specimens Phalangocephalus dentatus, Barrett 1874, and Nanothyris subglobosa, Weller 1903. Cheers, Gordon
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From the album: MY FOSSIL Collection - Dpaul7
Discomyorthis oblata Brachiopod Bois d'Arc Formation (overlays the Haragan) of Oklahoma TIME PERIOD: Lower Devonian (359-383 Million Years Ago) Orthida is an extinct order of brachiopods which appeared during the Early Cambrian period and became very diverse by the Ordovician, living in shallow-shelf seas. Orthids are the oldest member of the subphylum Rhynchonelliformea, and is the order from which all other brachiopods of this group stem. Physically they are usually strophic, with well-developed interareas. They also commonly have radiating ribs, sulcus, and fold structures. Typically one valve, often the brachial valve, is flatter than the other. The interior structure of the brachial valves are usually simple. In shape they are sub-circular to elliptical, with typically biconvex valves. There is some debate over the forms that first appeared of this order as to how they should be classified. However, they began to differentiate themselves by the late Early Cambrian period, and by the late Cambrian period had diversified into numerous varieties and reach 2 to 5 cm in width. Specimens from the late Cambrian to the earliest Ordovician exhibit shells with rounded and pointed pedical valves, with sharp to obtuse extremities and ridges that are fine to course. Punctate shells appear during the mid-Ordovician, which establish the suborder Dalmanellidina. The Ordovician is a productive period which gives rise to numerous genera in this order. However, they started to become greatly reduced by the end of the Ordovician extinction event. Both the impunctate and punctate survived through to the early Devonian Eventually, though, only the punctate lived on, and would play a minor role in benthic ecosystems until the late Permian, when they became extinct. Kingdom: Animalia Phylum: Brachiopoda Class: †Rhynchonellata Order: †Orthida Family: †Rhipidomellidae Genus: †Discomyorthis Species: †oblata
