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From the album: Fossildude's Middle Devonian Fossils
Tornoceras mesopleuron Middle Devonian Mount Marion Formation - Dave Elliot Bed Hamilton Group Route 209 Roadcut Kingston, NY© ©2021 Tim Jones
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A Four Course Meal: Bivalves, a Gastropod, a Brachiopod, and a Bryozoan
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Bivalves, a gastropod, a bryozoan (Fenestella sp.), and a brachiopod (Mediospirifer) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. -
Partial Bivalve Shell with (worm?) borings from Sullivan CO., Southeastern N.Y.
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Pseudoaviculopecten princeps (partial bivalve shell with (worm?) borings) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. -
Middle Devonian Bivalve from Sullivan CO., N.Y.
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Modiomorpha mytiloides (palaeoheterodont bivalve) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. -
Middle Devonian Nautiloid and Bivalve from Sullivan Co., N.Y.
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Michelinoceras (nautiloid) Goniophora hamiltonensis (bivalve) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. -
Middle Devonian Bivalve from Sullivan CO., Southeastern N.Y.
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Goniophora hamiltonensis (palaeoheterodon bivalve) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. Goniophora is an uncommon bivalve in Central New York, but shares dominance with Modiomorpha here. -
Middle Devonian Nautiloid from Sullivan CO., Southeastern N.Y.
Jeffrey P posted a gallery image in Member Collections
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From the album: Middle Devonian
Michelinoceras telamon (straight-shelled nautiloid) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 road cut Wurtsboro, N.Y. -
Most of these are coming from a recently found 2' thick bed near Rose's point. The first (wetted) is from where Peenpack Trail ( a road) and gas pipeline cross; looks like roots as they and their path through the rock are in three dimensions. Gordon
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From the album: Middle Devonian
Tornoceras mosopleuron (goniatite) Middle Devonian Mount Marion Formation Dave Elliot Bed Marcellus Shale Hamilton Group Hannacroix Ravine Clarksville, NY. -
From the album: Middle Devonian
Tornoceras mosopleuron (goniatite) Middle Devonian Mount Marion Formation Dave Elliot Bed Marcellus Shale Hamilton Group Hannacroix Ravine Clarksville, NY. -
Hunting Devonian Cephalopods in Hannacroix Ravine, Albany Co., NY.
Jeffrey P posted a topic in Fossil Hunting Trips
Today I returned to Hannacroix Ravine, a site in Southern Albany County, NY. (Helderberg Plateau) I last visited over three years ago. It is a beautiful site along a narrow cliff lined ravine, however it is tough to get to requiring a steep decent from the road and making one's way through thick prickly bushes and downed trees. No wonder why I've avoided this place in favor of road cuts and quarries. The stream itself was barely flowing, more just a series of shallow pools and mud. It was a cool, sunny day (temperatures in the 40s and later low 50s), but perpetually shady in the deep ravine. I was collecting from deep water strata in the Dave Elliot Bed, part of the Mount Marion Formation which is part of the Marcellus Shale which forms the lowest part of the Middle Devonian Hamilton Group. The rock was primarily siltstone, not terribly hard to remove decent sized pieces from the wall which hung precariously overhead. I was forever fearful a bunch of it would collapse and land on me. Some pieces did come down on their own, but none came close to hitting me. Biodiversity is very limited here: some small bivalve shells and goniatites and straight-shelled nautiloids. There appears to be even less diversity than the Dave Elliot deep water site near Kingston. Spent about six hours- the first four were mostly a dud, but in the last two found some nice goniatite and nautiloid specimens. Did even better than I did the last time I was there. The prize was this goniatite, Tornoceras mosopleuron, the best one I've collected from this site and better than any of the ones I've found at the Kingston site.
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A few days ago searched for a quarry north of Cuddybackville but not found. On the way home stopped near Rose's Point where a very large rock pile did indicate a quarrying operation. These from loose rock at the cut. FOV 6-8" Gordon
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From the album: Middle Devonian
Pseudoaviculopecten princeps (bivalve shell) Middle Devonian Mount Marion Formation Marcellus Shale Hamilton Group Route 209 Wurtsboro, NY. Though tiny, this is the largest, most detailed specimen I've found so far. -
Many thanks to Stingray and Jeffrey P. for the opportunity to collect; they have wonderful finds from this trip. Gordon ID's are on a "looks like" basis. Goniafora hamiltonensis Mytilarca pyramidata Paleoneilo filosal See ID section "Middle Devonian Shell" Paleoneilo emarginata ID?
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This from the Mount Marion Formation in south eastern NY. Most other finds are ID and will be posted in the trips section. Thanks, Gordon
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A good time to check out a notch cut by a waterfall, now dry, near Cuddybackville NY. Looks like Mucrospirifer mucronatus (see Linsley Pl. 100 no. 15) or Mediospirifer angusta (see Linsley Pl. 104) 2" across Looks like Platyorthis peloris (see Linsley Pl. 64) or Strophiodonta demisssa (see Linsley Pl. 67 with the straight hinge line distinguishing it from Rhipidomella sp. 7" plate Tropidoleptus carinatus FOV 2" Looks like Prothyris lanceolata 2" long
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Our final fossil outing before the snow blanketed the region: lower middle Devonian Hamilton Group Mount Marcy Formation. From Elks Memorial Park Skyline Drive, the fossil bed itself has a spirifer type corroded out leaving a punky rock full of casts but above and below the bed the hard rock yielded these two, FOV 3" . Near Huguenot pic 1:a plant bit and 1/4" Chonetes? (right edge near apex of rock)], pic 2 plate with clams.9"x6" and pic 3 , 1/2" Tentaculites? cast. The assortment of fossils common to The Hamilton Group from Guide To The Geology of John Boyd Thatcher Park, Winifred Goldring NYS Paleontologist 1933, 1997 reprint available from NYS Museum Pubs.
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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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From the album: Middle Devonian
Tree Branch Cast (possible lycopod?) Middle Devonian Mount Marion Formation Hamilton Group Huguenot, NY. -
From the album: Middle Devonian
Tornoceras mosopleuron (goniatite) Middle Devonian Mount Marion Formation Dave Elliot Bed Hamilton Group Route 209 road cut Kingston, NY. -
From the album: Middle Devonian
Possible Psilophyton rhizome Middle Devonian Dave Elliot Bed Mount Marion Formation Hamilton Group Route 209 road cut Kingston, NY Found in marine sediments -
From the album: Middle Devonian
Eleusoceras sp. (nautiloid) Middle Devonian Dave Elliot Bed Mount Marion Formation Hamilton Group Route 209 road cut Kingston, NY. -
From the album: Middle Devonian
Tornoceras mesopleuron (goniatite) Middle Devonian Dave Elliot Bed Mount Marion Formation Hannacroix Ravine Albany Co., NY -
From the album: Middle Devonian
Mediospirifer sp. (brachiopod internal molds) Middle Devonian Mount Marion Formation Hamilton Group Jockey Hill Road Kingston, NY -
From the album: Middle Devonian
Nyassa dorsata (bivalve) Middle Devonian Mount Marion Formation Hamilton Group Route 32 Saugerties, NY
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