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Showing results for tags 'crinoid'.
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From the album: Missourian Series
Ulocrinus convexus, North TX Placid Shale Feb, 2023-
- crinoid
- missourian
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Delocrinus subhemisphericus, Winchell Limestone
Mikrogeophagus posted a gallery image in Member Collections
From the album: Missourian Series
Delocrinus subhemisphericus, North TX Winchell Limestone Feb, 2023-
- crinoid
- delocrinus
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From the album: Missourian Series
Ulocrinus convexus, North TX Palo Pinto Fm Feb, 2023-
- crinoid
- missourian
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Paragassizocrinus tarri, Mineral Wells Fm
Mikrogeophagus posted a gallery image in Member Collections
From the album: Desmoinesian Series
Paragassizocrinus tarri., North TX Mineral Wells Fm Feb, 2023 A stemless floating crinoid.-
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- desmoinesian
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I found the fossil attached a while ago in Tyrol, Austria. More preciselly, in the valley of Brandenberg in which many beautiful fossils can be found (mainly gastropods and ammonits). I am having a hard time to identify the fossil below and I am also not so experienced. Could i be a crown of a crinoid? The size of the fossil is around 8cm. Unfortunately, the stone is very porous and it almost falls apart.
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Crows Feet? I’ve seen these in limestones but not in dolostones. Plenty of bits and pieces. I think Favosites and molds of crinoid columinals. More crinoid molds and both brachiopod molds and bits and pieces. Very very crystalized. But fun challenge.
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This mold seems large to be from a Crinoid stem. It’s almost 1 cm in diameter. But I can see faint horizontal lines that the camera is not picking up. Any help or guidance appreciated.
- 28 replies
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From the album: Mahantango Formation
Crinoid calyx, Schuylkill County, Pennsylvania- 5 comments
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- 3
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- crinoid
- crinoid calyx
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From the album: Mississippian fossils
A beautiful Dorycrinus crinoid calyx I found while out setting fish lines. This specimen will be very nice after preparation.-
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- burlington formation
- crinoid
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What is the difference between crinoid and blastoid columnals. I know the difference between the calyx of a crinoid and the theca of a blastoid. I have a site I visit that has a mash up of both calyxes and thecas, but not with attached columnals. It is a Mississippian site, Warsaw formation.
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From the album: Mahantango Formation
Crinoid arms with pinnules Perry County, Pennsylvania -
From the album: Mahantango Formation
Megistocrinus depressus (left) and an unidentified calyx Perry County, Pennsylvania -
From the album: Lower Carboniferous fossils of Ireland
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- carboniferous
- crinoid
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In my Secret Santa gift last Christmas from @connorp I received (among other nice items) a very nice little hash plate from the Mifflin Member of the Platteville Formation (U/M Ordovician, Blackriverian, ~453 MY) from SW Wisconsin. The picture below is the plate as it was received and in my 12/20/22 post about getting it I said: “A great hash plate. I already see two or maybe three different trilobite types with a couple of them tantalizingly partially buried and an interesting gastropod that I am not familiar with. I think a little prep work will make this even more spectacular. As an added plus, it represents my first fossils from the state of Wisconsin.” I finally got around to doing the prep I talked about and spent a little time exposing some of the more prominent fossils and giving it a gentle going over with air abrasion to bring out some of the features. I think it looks even better than it already did and I was even more impressed with the wide variety of fossils on the small section of rock. Below is the cleaned up plate: Here is a collage of the plate just turned at different angles to the sunlight in case it helps to bring out any features: There are hundreds of fossil fragments on this one small piece of rock, but I want to highlight the top couple dozen specimens. With the help of some TFF members via previous posts and replies in a couple of ID threads I put out (thanks @Tidgy's Dad, @connorp, @piranha, @minnbuckeye and others), I have identified several trilobites, brachiopods, gastropods, ostracods, bryozoans, and a crinoid and want to show you this wonderful diversity in such a small space. If anyone sees changes to my ID's please feel free to chime in. Some will be very specific ID's and some will be a bit more general. The picture below is the key to where each of the numbered specimens is on the slab (see number in upper left of each specific picture). We will start with the trilobites. Although each is only a partial, there is enough present to get a pretty specific ID on most of them. All are new genera or species in my collection. Here are the brachiopods: Here are a couple of specimens of a really neat gastropod which was new to me. So often it seems Paleozoic gastropods are just internal molds or rather plain forms, but this first one is very nice. Here are a few bryozoans and one very small horn coral. There were several of these small corals, I'm not really sure of the ID, I didn't research them much yet. Just a couple of small crinoid columnals were found. And last but not least are the ostracods. I am used to small ostracods (which some of these are) but there is also this one form that is huge (by ostracod standards) coming in at about a centimeter long. At first I thought they were brachiopod fragments until I looked at them closer. These things are the size of a kidney bean! Note the scale difference between the Eoleperditia and all the others. Most of my ID's are questionable as I was using a reference that is for the immediately overlying Decorah Formation until I can find a listing for the Mifflin Member. OK that is everything for now. I hope you have enjoyed the wonderful diversity of this small slice in time. With a little more investigation, I may yet tease out a few more specimens worthy of an ID. Thanks for looking. Mike
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- brachiopod
- brozoan
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From the album: Mississippian fossils
An intriguing crinoid calyx from the Chouteau Formation of central Missouri, likely Aacocrinus boonensis . I'll clean and ID this specimen properly later this year.-
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- boone county
- calyx
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A recent fossil exploration trip in North MIssissippi resulted in a new Mississippi Fossils YouTube "How to" playlist. I believe I found a horn coral (top) and a crinoid stalk piece (bottom). A small quartz rock is also pictured in the middle. I also think I spotted an embedded oyster shell. darrell barnes
- 1 reply
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- crinoid
- horn coral
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From the album: Lower Carboniferous fossils of Ireland
© BJM
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- crinoid
- east coast ireland
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Today I went through some piles of weathering Fern Glen limestone I have outside, and I found the cutest little calyx. First thought was it was a chunk of stem, but after chipping it out of the rock that was definitely not the case. I compared it to some literature I had on hand, and believe it is small Agaricocrinus pracursor crinoid calyx. I Would like some second opinions. Unfortunately I don't have an air abbraider to clean this calyx further and it being so small as well as ironstained makes it tough to photograph well with my old phone, so I will add a couple more photos than usual. Thanks as always. -Jay
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Hi TFF. I hope you can help me with this mystery. I found this unusual fossil at a rock shop in Northern California for only $15, so I figured I would grab it for that price and figure out what it is later. How hard could it be? I had the label and everything. Well, now it is home in New York and I think the label must have gotten switched because it looks like a mispelling of a trilobite. The fossil gives off crinoid or rhinocarid/phyllocarid vibes, but I just can't tell. Any ideas?
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Found this in a cliff side in Colorado I am not sure but it looks like a mollusk or Crinoid bulb, DINOSAUR EGG!😆 Thanks!
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From the album: New York Devonian Micro Matrix
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From the album: New York Devonian Micro Matrix
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From the album: New York Devonian Micro Matrix
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From the album: New York Devonian Micro Matrix
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From the album: New York Devonian Micro Matrix