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Showing results for tags 'brachiopods'.
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From the album: Fossil in Matchboxes
These are clearly Brachiopods with a penned clue “Filey Brigg “but why, when and how have they come to be at present I do not know.© D&E
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From the album: Fossil in Matchboxes
These are clearly Brachiopods with a penned clue “Filey Brigg “but why, when and how have they come to be at present I do not know.© D&E
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While researching what caused the current invertebrate fossil of the month to have such a wonderful iridescence (www.thefossilforum.com), I came across some interesting info on preservation of color patterns in fossil shells. In Northern California where I live, most of the color of a fossil shell disappears after a few thousand years. The pattern of color is gone in a couple million years. While in Texas, I collected Texigryphea from the early Cretaceous that still had color patterns of dark radial bands. Finding a paper about Devonian brachiopods with color patterns surprised me. See: http://www.bioone.org/doi/full/10.4202/app.2010.0066 “First Colour-Patterned Strophomenide Brachiopod from the Earliest Devonian of Podolia, Ukraine” by Andrzej Baliński, found in Acta Palaeontologica Polonica 55(4):695-700. 2010. The first figure below shows the spotted pattern found on the convex shell of a strophomenid brachiopod from Ukraine. Wow, what a camouflage! The brachiopods blended right in against the light-colored rock with dark spots. I am reminded of well camouflaged modern mottled and spotted moths that are hard to see when they are on certain trees and rocks. The second figure shows a variety of color patterns found in fossil brachiopods. The paper suggests that brachiopods with colors and patterns occur in shallow water in the photic zone and in areas with warmer water. Few are found in cold polar waters. A similar distribution of colored shells and mollusks exists today. Shallow tropical species are very colorful while polar and deep water species are not. Show us some of your older fossil shells with colored patterns: Cretaceous and older.
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From the album: Ordovician Fossils from Tennessee
Brachiopods - Chickamauga Group / Ordovician - from East Tennessee -
From the album: Ordovician Fossils from Tennessee
Various Brachiopods, Gastropods, Bryozoans - Chickamauga Group / Ordovician - from East Tennessee -
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Rhynchonellid Brachiopod from Madison Co., NY
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Camarotoechia congregata (Rhynchonellid brachiopod) Middle Devonian Skaneateles Formation Delphi Member Hamilton Group Cole Hill Rd. North Brookfield, NY. -
sLast weekend I took a four day trip to Kentucky to see family; parents, sister, brother-in-law, and nephew. While there arranged to get together with Herb from the Forum to collect Mississippian Age fossils which I hadn't done before. There are no fossiliferous Mississippian Age deposits in New York and the nearest are in Western Pennsylvania hours away, so this looked like a good opportunity to add some marine fossils from that age to my collection. Fortunately where my family lives is in an area of marine Mississippian deposits. On the way to our rendezvous with Herb in E-Town (Elizabethtown) my nephew and I stopped at a road cut in Leitchfield that he knew about and had seen other collectors collecting at. Fossils were eroding out of the hillside by the score and could be picked up right off the ground free of the matrix. Collected a number crinoid stems, bryozoans, and small brachiopods. After an hour, we continued on to our meet up with Herb. My nephew had already met Herb at a collecting site. We continued on to another road cut collecting site about forty minutes away. Again, fossils were eroding out of the hillside and could be picked right up free of the matrix. Prior to this I had no blastoids in my collection but in just an hour and a half I'd collected fifteen plus more brachiopods, crinoid stems, and some more bryozoan specimens. We then returned to the first place in Leitchfield where my nephew and I visited earlier. Found more specimens including a number of crinoid calyxes, a couple blastoids, and a few more brachiopods and bryozoans. I'll have to study to learn the IDs of these specimens. All in all a great day and Herb was wonderful to collect with and very generous and knowledgeable besides. Hope we get to do this again next year. Oh, and by the way, the family visit went well too.
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Hey all, I haven't found my trilobite source yet, but I did find this neat hashplate. It comes from a creek in White Sulphur Springs, WV and is probably Devonian. I haven't seen shells this small before. I'm guessing they're brachiopods, but otherwise I have no idea what they might be. I couldn't get a clear picture with a scale included, but the largest shell is a little under 1/4". This photo is the closest I can get to the piece and still be in focus. Any ideas? Thanks
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New project I'm working on prepping. I grabbed this plate from Penn Dixie earlier in the season, and it's just loaded with bits of all different things. I've taken it on as a long term projects to prep out this section as best as possible exposing as much as possible. I don't have an actual before photo, because I didn't think it was worth photographing until I started playing with it. I will keep updates as I go!
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Strophomenid Brachiopod from the Marcellus Shale, Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Protoleptostrophia perplana (brachiopod shell) Middle Devonian Oatkacreek Formation Mottville Member Marcellus Shale Hamilton Group Morrisville, NY. -
I traveled to check out the very first outcrop that I collected at a young age. The Nancy Member of the Borden Formation, lower Mississippian in age adjacent to Cave Run lake in Rowan County, KY. These are VERY large outcrops that when I was younger I climbed around like a mountain goat. Now I just look in the float. As typical of other trips I found abundant straight nautiloids (Michelinoceras). A few coiled nautiloids, two nice brachiopods and two nice gastropods including a rare left coiled gastropod (Only the third one I have ever found.)
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From the album: Penn Dixie Site - Upper Wanakah Member
Mucrospirifer sp. from the upper Wanakah Shale Member, Penn Dixie Site, Hamburg, NY.© 2016 Jay A. Wollin
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Orthid Brachiopod Preserved in Pyrite from Penn Dixie
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Tropidoleptus carinatus (Orthid brachiopod preserved in pyrite) Middle Devonian Moscow Formation Windom Shale Pyrite Layer Hamilton Group Penn Dixie Quarry Blasdell, NY. -
Spiriferid Braciopods Preservd in Pyrite from Penn Dixie
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Ambocoelia umbonata (brachiopods preserved in pyrite) Middle Devonian Moscow Formation Windom Shale Pyrite Layer Hamilton Group Penn Dixie Quarry Blasdell, NY. -
Devonian Spiriferid Preservd in Pyrite from Penn Dixie
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Cyrtina hamiltonensis (Spiriferid brachiopod preserved in pyrite) Middle Devonian Moscow Formation Windom Shale Pyrite Layer Hamilton Group Penn Dixie Quarry Blasdell, NY. -
Strophomenid Brachiopod from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Eoschuchertella arctostriata (Strophomenid brachiopod) Middle Devonian Moscow Formation Windom Shale Hamilton Group Deep Springs Road Quarry Lebanon, NY.-
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Devonian Spiriferid Brachiopod from Madison Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Spinocyrtia granulosa (Spiriferid brachiopod-both valves) Middle Devonian Moscow Formation Windom Shale Hamilton Group Deep Springs Road Quarry Lebanon, NY. -
Terabratulid Brachiopod from the Oriskany Sandstone, Helderberg Plateau, NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Lower Devonian
Rensselaria elongata (Terabratulid brachiopod) Oriskany Sandstone Tristates Group Helderberg Plateau Knox, NY.-
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Tim (sTamprockcoin) and I went to Deep Springs Road Quarry just west of Hamilton, NY in Madison Co. This was on Monday. I didn't have very high expectations. It was Tim's first time there, but I've been going there foir the past three years, over a dozen times. I've lost count. It is the eastern most exposure of the Windom Shale (Moscow Formation) Middle Devonian Hamilton Group. I especially like it because of the abundant well preserved fossils and biodiversity. Most of my collection of Middle Devonian fossils from Central New York are from there. I've introduced a number of Forum members to the site and I was confident that Tim would love it, but I had doubts I would find much that was noteworthy. My last time there- the planned Forum meet up on May 15th I didn't do so great. Also, I had just gotten back from a spectacular trip to Buffalo and a very productive outing in Morrisville. I figured I was overdue for a letdown. In addition, the weather report wasn't good- predicting showers and thunderstorms. The possibility of getting completely rained out was a possibility. That plus, I was coming from four and a half hours away, an hour more than my usual trip. I figured I'd be tired and not my best. We met at the Dunkin Donuts in Hamilton and Tim followed me out to the site. To my surprise, the couple who were previously camped at the quarry had vacated. That immediately improved the parking situation, but more importantly, it opened up another section of the quarry the Forum members weren't able to explore the last time. That's where I spent my efforts. Within a few minutes I found a tiny goniatite. DSR has produced the largest number of goniatites in my collection. It rained lightly much of the morning but that didn't effect our collecting. In fact the wetness helped me spot the smooth shell of another, larger goniatite that was lying out in the open. Tornoceras uniangulare
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Two Spiny Strophomenid Brachiopods from the Marcellus Shale, Madison Co., NY
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Spinulicosta spinulicosta (Spiny Strophomenid Brachiopods) Middle Devonian Oatkacreek Formation Mottville Sandstone Marcellus Shale Hamilton Group Morrisville, NY. -
From the album: Middle Devonian
Athyris spiriferoides (left) Pseudotrypa devoniana (right) Middle Devonian Lower Ludlowville Formation Wanakah Shale Hamilton Group Penn Dixie Quarry Blasdell, NY. -
From the album: Middle Devonian
Camarotoechia congregata (Rhynchonelid brachiopod) Middle Devonian Lower Ludlowville Formation Wanakah Shale Hamilton Group Penn Dixie Quarry Blasdell, NY. -
From the album: Middle Devonian
Brachiopods Upper Mediospirifer audaculus Lower Pseudotrypa devonaria Left Tropidodoleptus carinatus Right Rhipidomella Penelope Middle Devonian Lower Ludlowville Formation Wanakah Shale Hamilton Group Penn Dixie Quarry Blasdell NY.- 2 comments
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Tiny Brachiopod Preserved in Pyrite from Erie Co., NY.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Ambocoelia umbonata (brachiopod preserved in pyrite) Middle Devonian Lower Ludlowville Formation Ledyard Shale Hamilton Group Spring Creek Alden, NY. -
From the album: Middle Devonian
Spinotrypa spinosa (spiny brachiopod) Middle Devonian Upper Ludlowville Formation Wanakah Shale Hamilton Group Penn Dixie Quarry Blasdel, NY.
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