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Showing results for tags 'crinoid'.
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From the album: My Collection
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Quick fieldwork in the devonian before the storm
Manticocerasman posted a topic in Fossil Hunting Trips
Saturday we went back to the south of Belgium to check out the quarry where I like to hunt for goniatites. The last 6 months there was litlle activity in the quarry and I was hoping that things had changed by now and the would have dug further, but alas there stil was no change. Still the bad weather and the storms of this winter cleaned out a lot of debris, we did find some nice fossils. At 1 pm we had to give up searching and ran back to the car due to heavy downpour and wind. Start of the day, gray and windy , but still dry: ptospecting the rubble , the first fossils apear: A big goniatite in the mud: Carinoceras sp. some parts of the shell missing. peeking out of the dirt: A little game for the TFF members, find the goniatite: the 2 best finds of the day: From Natalie a cute piece of placoderm: For me, I picked up a crinoid calix, I still have to remove some of the sediment around it: And we brought this one home to show to@Tidgy's Dad a large brachiopod
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A couple of our more unusual finds in the Whitby area today, can anyone identify the first couple of items? The larger one has the striped (pyrite?) effect on both sides. Also, is anyone seeing crinoid or similar in the last two pictures? Same side of rock from different angles.
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What is the difference between a crinoid and a blastoid
Manticocerasman posted a topic in Questions & Answers
I was wondering if there are ways to make out the difference between an isolatad crinoid and blastoid calix, what are the indicators? -
I'm not sure if folks would like to do this or not, but I thought it might be fun to have a run of "I Spy" with a large fossil-rich rock that I recently found in our yard. Experts and newbies both welcome! This rock weighs 4 pounds and measures about 6 inches by 5 inches. These are macro images - all from the same rock. Check them out and see what you can "Spy" in each image! Look closely - very closely! And think in 3-D format! ;-) A bit of background - this rock was found in Huntsville, Alabama and is likely mostly limestone. I mostly find fenestellan bryozoan, crinoid, and coral fossils, with a few bivalves. So, surprise me with what YOU see in these photos!
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Is this a crinoid stem? If so, what is the exterior? Thx! From Kosciusko Co, IN.
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Along with being a newly avid fossil student, I am also a stock photographer. I would like to submit these images for stock images, but I want to make sure that I am identifying them correctly. You guys have helped me learn EVERYTHING you see here! All of the names and labels, I learned here! Please let me know if I am missing any thing or have mislabeled any of these? I have numbered them to help with the identification. Thanks so much! Ramona
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These were found in the same place, in black shale, in West Virginia. Are these both crinoid stem? Thank you for your help!
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Here are a few small bits from the Cincinnatian (Upper Ordovician) roadcut near St Leon, IN, that I’m not sure of the IDs. They were all collected from the butter shale trilobite layer of the Liberty Formation. First is what I think may be part of a crinoid? Not positive. Next, I have no idea. Maybe part of a crinoid. A fragment of a conulariid also crossed my mind. Here is a small brachiopod that I picked up thinking it was Zygospira but is definitely not. I’m guessing this trilobit is Flexicalymene, but I know a few other species of trilobites are found here so I wanted to check.
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Got to visit one of the Pennsylvanian era sites outside of Brownwood TX with the Paleontological Society of Austin (FIELD TRIP!) and was astounded by the variety of fauna and the COLOR! Rocks in green, burgundy, purple and golds. Consequently, so were the crinoid stems! A rainbow of Crinoids! I was happy to find one little piece of an arm, also. Was hoping to find a bulb, but did not...one of the other field trippers did though! Also, lots of beautiful horn corals, bryzoans, horn corals, a big and a little Belerophon gastropod, big and little brachiopods, some neat crinoid "spikes" and what I think are Echinoid mouthplates? Aristotle's Lantern parts? Confirmation or correction please! My best find of the day was a little hash plate of echinoid spines and tiny tiny plates. I was also happy to find a cidarid plate and spine. Still looking for that whole one!! My other "big find" of the day was a Petalodus shark tooth...sadly, just the root. But it would have been a BIG one! I spent 5 hours hunting and could have easily stayed another 3 but it was a bit of a long drive home. I look forward to going out again! Rainbow crinoids: Echinoid Hash Plate: tiny piece of Crinoid arm Echinoid Mouthplates? Or Crinoid parts? Crinoid Spines: Not sure if this is another crinoid spine or something else? Petalodus tooth Root: Belerophon Gastropods Bryzoans Neospirifer Horn Corals Punctospriferer Brachiopods Fusilids?
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Met a very nice man this evening that finds a lot of fossils in his quest for arrowheads. He gave me this fantastic piece and well as some other nice things I’ll post later. I have several triobites and Ptychodus shark teeth and other stuff all have to me. He told me this Crinoid came from a creek in green county Alabama and that’s all the info I have on it. He said when he didn’t have anything else to do he would work on trying to reveal this a little each time.
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Went to a beach in the Whitby area today, it was very slim pickings until my daughter saw the first of these items shining amongst the rocks. I’m guessing some kind of pyrite bivalves? The second item is something I saw on our way off the beach, am I right in thinking they’re crinoid stem sections? Thanks in advance
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I went back to my very productive Devonian Martin Formation and Mississippian Escabrosa Formation near Superior, Arizona to retrieve my large single crinoid head fossil. Amazing Arizona Adventure original post link After some acid prep four crinoids and one blastoid were clustered together. Currents probably sorted them by size and shape. Several more hours of acid prep made the remaining four best ones stand out. I had to carefully break away pieces of shell that adhered and covered the crinoids and blastoid. Careful monitoring of their progress prevented any of them falling off the matrix. The resulting piece is probably the finest crinoid and blastoid assemblage ever found in Arizona. Finding one crinoid or blastoid cast in Arizona is very hard let alone four or five together. The two largest crinoids in the center and left are likely Physetocrinus lobatus. The upper right is an Orophocrinus saltensis blastoid. The lower right is an unknown crinoid. (Any idea what it is?) The field of view is about 7.5 cm wide. Keep looking for updates as I prep and post more fossils. I found several loose crinoid heads.
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Hi All, I picked up this rock in my back yard a couple of days ago. I picked it up because I saw a couple cross sections of rugose coral and some fenestrate bryozoan fossil pieces. When looking at it later, I noticed this feature. I haven't found anything like this before. Is this just a different type of bryozoa? These little marks also look like some tiny Platycrinite crinoid pieces. This was found in Howell County, Missouri, USA. It came from the Ordovician Period. These lines measure approximately 23mm in length and measure approximately 0.79mm wide. The individual spots are oval in shape and measure approximately 0.38x0.79mm. I don't know if it shows well in the first image, but this feature appears to be in a fracture in the host rock. There is still some rock covering the feature in the fracture. Any assistance or direction that you can give me is greatly appreciated. Thanks for your time, Doug
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I continue to be amazed at the plethora of fossils in our yard, so I tried an experiment. I raked up some rocks that were around a tree in our front yard and half filled a five gallon bucket with them. I figure that some of them were brought in as decorative rocks, but to test that theory I grabbed two from the top at random. I cleaned them with vinegar and water and then photographed them with my macro lens. They are at least a different type of rock than I am used to seeing (not all of these are different, but those two were). I mostly see limestone, but I will post photos of these in the comments. They look like quartz to me? Or are they a different type of limestone? And maybe I am imaging it, but I think I am seeing some crinoids and bryozoans in them? If no one else sees them I will circle what I THINK are fossils for further verification. Is it odd to find an area so rich in fossils? Or am I odd in that I am looking so closely for them, LOL? I guess since this area was once covered in water, it is likely "normal" to find bryozoans and crinoids everywhere I look, right? Thanks for all input! I learn so much here! (And I won't be surprised to hear that the following photos really ARE rocks that were likely brought in as decorative, LOL!) Ramona
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I am considering buying a floating crinoid fossil, and the seller claims they’re “rare.” Is this true or is he just trying to make a sale?
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I love finding multiple fossils. I don't just mean multiple specimens in a single rock, I mean fossils that show evidence of more than one life-form. Shells with burrow traces, for one example. Dung beetle balls. Predation marks. And particularly, epibionts. Here I have a fairly ordinary specimen of the brachiopod Tropidoleptus carinatus. Ordinary, that is, until a closer look is taken.... This specimen supported an variety of other critters on its pedicle valve. Whether the epibionts took hold while the brachiopod was alive, or colonized the dead shell, I don't know; I would speculate the former, as the brachiopod is articulated. I think it is likely that the whole living community was buried together by mud. So who's here? Let's take a closer look. We have several examples of Cornulites hamiltoniae. Some are (relatively) large, while others are very small: Two more Cornulites pictures, then we'll see who else lived here!
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I am really trying to learn my common invertebrate fossils. Can someone, once again, confirm my tenative identification, or correct me? I really appreciate it. The fossil in question is this oval fossil. After doing some research my guess is it is a crinoid of some sort. I am guessing that the little "nipple" in the center of the oval is where the normal hole is, but why does it have a line disecting the oval into two distinct parts? If it is not a crinoid, can someone please tell me what I am looking at, and where I went wrong on my identification? Thanks, Doug
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This is not a fossil that I am familiar with, but I have done some research and it looks a bit like a crinoid stem? The segments seem fatter than the stems I saw online, but that was as close as I came... Could it be a bryozoan segment? I didn't see any of those online that matched it, either... Found in Huntsville, AL, where I usually find fossiliferous limestone with crinoids and fenestellen bryozoan fossils. Thanks! Ramona
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Below is an example of a Box Crinoid I was lucky to find in 2017 with the Cedar Valley Rock and Mineral Society in 2017. This quarry can produce Devonian Phacops, Greenops, Crinoids and Fish parts, besides lots of brachiopods . Been going here and the Conklin quarries for close to a decade. Finally found a complete Crinoid. This one is a Camerate Crinoid, more common name Box Crinoid.
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Have you ever wondered what the holdfast root system looked like? I did. So I prepped one of my least costly duplicates to see the whole picture. Here are the before photos.
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I have been able to identify (with your help) a few of the fossils we found while hunting at Beltzville state park. This is something that may be something. I tried to get the six-sided pics as recommended. What might this be (if anything)? Beltzville State Park in Pennsylvania, USA. I believe these come the Upper Devonian Mahantango Formation. Thank you.
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Any idea what these silicified possible crinoids are? Are they even crinoids? They are from the Pennsylvanian Naco Formation from near Payson. The ones in the photos (both sides are shown) are from 0.8 to 1.5 cm wide. @crinus These two references might be of help. Anyone have access to the photos from these? Webster, G., & Olson, T. (1998). Nacocrinus elliotti, a New Pachylocrinid from the Naco Formation (Pennsylvanian, Desmoinesian) of Central Arizona. Journal of Paleontology, 72(3), 510-512. Webster, Gary; Elliott, David. (2004). New information on crinoids (Echinodermata) from the Pennsylvanian Naco Formation of central Arizona. The Mountain Geologist. 41. 77-86.
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Hi all, Another couple of mysteries that I found at an old quarry near Mapleton, PA and are from the Keyser formation which is thought to straddle the boundary between the Silurian and Devonian periods. The layers they were found in were close to layers of the Tonoloway formation which is Upper Silurian in age. I found one item that I believe is a Mariacrinus pachydactylus based on the Paleontology of New York, Part 3, Vol 2, Plate 3. It's been preserved by a black colored Chert but I don't want to acid etch it any more that I have (about an hour in vinegar). The other oddball is this UFO shaped specimen. I've found similar examples before but I ruined any chance of seeing detail on the surface by soaking them in vinegar. This is the first example I've found since then. Close examination with a lens and microscope does not show any detail so it may need to be cleaned a bit more. The "Bottom" has a nick in it or maybe it was where a stalk attached? Any thoughts? Thanks for looking!
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