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Showing results for tags 'Oatkacreek Formation'.
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From the album: Middle Devonian
Gosselettia triqueter (pteriomorphia bivalves) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Hamilton Group Morrisville, NY. -
Loxonematoid Gastropods from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Palaeozygopleura hamiltoniae (loxonematoid gastropods) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Hamilton Group Morrisville, NY.-
- Devonian
- gastropods
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Euomphaloidea Gastropods from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Bembexia sulcomarginata (euomphaloidea gastropods) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Hamilton Group Morrisville, NY.-
- Devonian
- gastropods
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Spinocyrtia (single valves} from the Marcellus Shale, Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Spinocyrtia granulosa (single valve spiriferid brachiopods) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Hamilton Group Morrisville, NY.-
- brachiopods
- Devonian
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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
- brachiopods
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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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- Devonian
- gastropods
- (and 4 more)
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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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- brachiopods
- Devonian
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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. -
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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- bivalves
- brachiopods
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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.-
- brachiopods
- Devonian
- (and 4 more)
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From the album: Middle Devonian
Spinocyrtia granulosa (brachiopod) Middle Devonian Oatkacreek Formation Marcellus Shale member Hamilton Group Morrisville, NY.-
- brachiopods
- Devonian
- (and 4 more)
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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
- Devonian
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Middle Devonian Bivalve ( Nuculoidea) from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Nuculoidea deceptriformis (bivalve) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Subgroup Hamilton Group Swamp Road Cut Morrisville, NY. -
From the album: Middle Devonian
Gosseletia triquetra (open bivalve- both valves, partly intact) Middle Devonian Oatkacreek Formation Marcellus Shale subgroup Hamilton Group Swamp Road Morrisville, NY -
On Monday I visited a site north of Morrisville, Madison County, NY. It is a roadcut exposure of the Marcellus Shale, the lowest part of the Hamilton Group. The bottom part is an exposure of the Bridgewater Member and the top is the Oatkacreek Formation. It was my third time there and each visit has presented a different experience: In the spring of 2013 my companion and I explored the talus slopes that cover most of the exposure and found a number of specimens of the top-shaped gastropod, Bembexia subcomarginata along with brachiopods and bivalves. I returned in the spring of 2014, this time exploring the shale outcrops above the talus slope and picked a number of Bembexia right from the shale wall. On Monday I climbed the steep talus slope again and dug into the shale exposure at the top and discovered a thin bed that was rich in well preserved examples of the tiny corkscrew-shaped gastropod, Paleozygopleura. Also found a number of Bembexia, plus bivalves and brachiopods including Grammysia bisculata and Spinocyrtia granulosa, and one pretty large bivalve with both valves preserved that I first thought was a concretion, and the smooth-shelled nautiloid, Michelinoceras.. This is a photo of the road cut with my vehicle in the foreground for scale.
- 20 replies
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- bivalves
- brachiopods
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It was a long harsh winter in Upstate New York. So when spring finally arrived, it was reason to celebrate. I took five day trips up there n April and May to collect from Middle Devonian sites. One was with the Mid-Hudson Gem and Mineral Society and my girlfriend, Valerie. The rest were solo ventures. It is a long three and a half hour trip from the Hudson Valley, but incredibally scenic through forested hills and gorgeous farm country. Time to crank up the tunes on the old Ipod. Three of the sites are near Hamilton. One is near Morrisville and one is near North Brookfield. All are in Madison County. Four different formations were collected from; the Skaneateles, the Moscow, the Upper Ludlowville, and the Oatkacreek Formation which is a member of the Marcellus Shale. All are part of the Hamilton Group. Biodiversity of the fossil assemblage is one of the chief attractions, as well as the remarkable preservation. Though each site had species in common with other sites, abundance of particular species would vary considerably. Here is a sample of what was found. These are partial Phacops rana trilobites including thorax/pygidiums and cephalons: Here is a cephalon of Dipleura dekayi, a large burrowing trilobite over three inches across: These are Greenops trilobites: These are Bembexia sulcomarginata, a gastropod: These are Retispira leta, a Bellerophron gastropod: This is a Spyroceras, a straight-shelled nautiloid: These are Grammysia arculata, a bivalve: These are Grammysia bisculata, another bivalve:
- 12 replies
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- Devonian
- Hamilton Group
- (and 5 more)