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Pentamerid Brachiopods from the Kalkberg Formation
Jeffrey P posted a gallery image in Member Collections
From the album: Lower Devonian
Machaeraria formosa (Pentamerid brachiopods, both valves) Lower Devonian Kalkberg Formation Helderberg Group Leesville, NY.- 1 comment
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Driving west on Route 20 towards my favorite Middle Devonian Hamilton sites in Madison County I always pass this limestone road cut on the west side of Schoharie County just outside the tiny hamlet of Leesville, NY. It is an exposure of the Lower Devonian Kalkberg Formation, part of the Helderberg Group amd it's richly fossiliferous. I have collected from there in the past and there's a nice-sized Favosites (tabulate coral) that I've been trying to release from the wall for the past few years now. Each time I stop there I give it a few more whacks from my sledge, but so far it won't budge. This spring on yet another foray to Central NY, I was in no rush and decided to give that Favosites a few more whacks. Again, no luck, but I noticed a nice Machaeraria formosa (brachiopod) lying free from the matrix, a nice consolation prize. I decided to spend a few more minutes checking out the site to see what else had weathered free and did pick up a number of specimens. The next day, on my way home I stopped again and checked out the road cut on the other side of the highway and collected a few more things. In addition to what I picked up there were scores of crinoid stem discs scattered about, bryozoans, and of course brachiopods. Maybe some day I'll spend a bit more time there. A pair of Machaeraria Formosa, a Pentamerid brachiopod. My only previous one has just a single valve. Both of these have two. Not sure on the ID of this single valve specimen. I'm guessing Uncinulus campbellanus, a Rhynchonellid brachiopod.
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Exploring the Devonian Marcellus Shale in Central NY
Jeffrey P posted a topic in Fossil Hunting Trips
Three Mondays in April and May, 4/25, 5/9, and 5/16/16 this writer explored a small privately owned quarry north of Morrisville, NY., Madison County. Exposed was the Mottsville Member of the Oatkacreek Formation which represents the uppermost part of the Marcellus Shale which is the lowermost part of the Hamilton Group (Middle Devonian). A pic of the site showing an area excavated by this writer:- 90 replies
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- bivalves
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From the album: Middle Devonian
Bembexia sulcomarginata (gastropod) Middle Devonian Oatkacreek Formation Marcellus Shale Hamilton Group Morrisville, NY.- 1 comment
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From the album: Middle Devonian
Eoschuchertella arctostriata (brachiopod- single valve) Middle Devonian Oatkacreek Formation Marcellus Shale Member Hamilton Group Morrisville, NY.-
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Devonian Crinoid Root Base from Madison Co., NY
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Crinoid Root Base Middle Devonian Oatkacreek Formation Marcellus Shale Member Hamilton Group Morrisville, NY. -
5 inch Partial Dipleura (trilobite) from Madison Co., NY
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Dipleura dekayi (pygidium and partial thorax) Middle Devonian Windom Shale Moscow Formation Hamilton Group Deep Springs Road quarry Lebanon, NY. Found by local resident and generously donated to this writer.-
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Spinocyrtia brachiopod partially enclosed by open bivalve shell from Madison, Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Spinocyrtia granulosa (brachiopod- partially enclosed within open bivalve shell) Middle Devonian Oatkacreek Formation Marcellus Shale Hamilton Group Morrisville , NY.- 1 comment
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From the album: Middle Devonian
Atactotoechus fruticosus (branching bryozoan) Middle Devonian Oatkacreek Formation Marcellus Shale member Hamilton Group Morrisville, NY. -
Inarticulate Brachiopod from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Orbiculoidea sp.(inarticulate brachiopod) Middle Devonian Oatkacreek Formation Marcellus Shale member Hamilton Group Morrisville, N.Y.-
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From the album: Middle Devonian
Spinocyrtia granulosa (brachiopod) Middle Devonian Oatkacreek Formation Marcellus Shale member Hamilton Group Morrisville, NY.-
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- Devonian
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I have here what I suspect may be a squished conularid, but I'm not certain. It is from the Middle Devonian Oatkacreek Formation, a Marcellus Shale member, Hamilton Group, from near Morrisville, NY. Thank you for your help.
- 13 replies
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- conularids
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From the album: Middle Devonian
Cupulorostrum sp. (brachiopod) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Cole Hill Quarry North Brookfield, NY.-
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Associated Remains of Juvenile Dipleura Trilobite from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Dipleura dekayi (associated remains of juvenile individual) (includes cephalon, thorax segments, and pygidium) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Coal Hill Quarry North Brookfield, NY.-
- Delphi Member
- Devonian
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From the album: Middle Devonian
Peracyclas sp. (bivalve) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Cole Hill North Brookfield, NY.-
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- Delphi Member
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From the album: Middle Devonian
Cornellites fasciculate (bivalve) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Cole Hill North Brookfield, NY.- 1 comment
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Dipleura dekayi juvenile from Madison Co., NY
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Dipleura dekayi (juvenile trilobite) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Cole Hill North Brookfield, NY.- 1 comment
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- Delphi Member
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Ordovician Brachiopods from the Hudson Valley, NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Ordovician
Dalmanella sp. (left) Paucicrura rogata (right) Upper Ordovician Ulster Park Formation (proposed) Normanskill Group Port Ewen , NY.-
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- New York
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Ordovician Brachiopods from the Hudson Valley, NY
Jeffrey P posted a gallery image in Member Collections
From the album: Ordovician
Sowerbyella sp. (left) Dalmanella sp. (right) Upper Ordovician Ulster Park Formation (proposed) Normanskill Group Port Ewen, NY.-
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- New York
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Ordovician Brachiopods from the Hudson Valley, NY.
Jeffrey P posted a topic in General Fossil Discussion
In September 2014, this writer collected a number of specimens of Ordovician Age brachiopods from a site just south of Kingston, NY. Ordovician brachiopods and other shelly fauna are pretty rare in the Hudson Valley despite widespread exposures of Ordovician Age shales, quartzites and slates that occasionally produce graptolites. These tiny casts and imprints found in crumbly shale and siltstone of the proposed Ulster Park Formation, from the top of the Normanskill Group is one of the few exceptions and deserves more extensive exploration. Sowerbyella and Dalmanella Dalmanella and Paucicrura rogata- 11 replies
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From the album: Ordovician
Graptolites (sp.?) Middle Ordovician Canajoharie Shale Canajoharie Gorge Canajoharie, N.Y.- 2 comments
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From the album: Middle Devonian
Plant twig/stem (unidentified species) Middle Devonian Mount Marion Formation Hamilton Group Huguenot, NY.-
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- Devonian
- Hamilton Group
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From the album: Middle Devonian
Tree Branch Cast (possible lycopod?) Middle Devonian Mount Marion Formation Hamilton Group Huguenot, NY.- 1 comment
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- Hamilton Group
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Compared to 2014, this season has been a bit of a disappointment as far as finding complete trilobites. True, I found a couple nice Greenops at Deep Springs Road, including one at the TFF gathering last spring. Figuring I had one last chance to make good before winter snows hit, I traveled up to eastern Madison County in Central Upstate New York to an exposure of the Middle Devonian Skaneateles Formation, part of the Hamilton Group. It was my second time there this year and the last time produced one of my best Dipleura dekayi cephalons. I hoped to do at least as well on this, what is likely, my final trip there of the season. I arrived before ten in the morning. Day was crisp- high thirties to low forties, sunny. There were a number of sandstone blocks lying at the foot of the exposure I didn't recall seeing the last time I was there. I proceeded to split these and the second block yielded this: the thorax and pygidium of a Dipleura, the best Dipleura thorax/pygidium I've found so far this year. Soon after I found a partially exposed cephalon of another Dipleura. A little careful chiseling and repair work I was able to expose the whole thing:
- 30 replies
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- Devonian
- Hamilton group
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My Silurian eurypterid watercolor from Japanese artist Tasashi Ito, based on a New York specimen. Unfortunatly the fossil is a model.
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- eurypterid
- fossil
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