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Showing results for tags 'tabulate'.
Found 25 results
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I found this specimen in the bed of Stonelick Creek in Batavia Ohio. This heavily tumbled specimen was very unlike all of the other Ordovician limestone shale rocks in the bed. Presumably it arrived there through one of three modes: 1) the creek carried it from a more distant source, 2) it could possibly have been carried by a glacier, or 3) Native Americans formerly lived there and it could be a manuport. At first I thought it might have been a meteorite but alas it I concluded it was a fossil due to the low iron content, the relatively low density and the bubbly nature of the specimen. The specimen is about 6 inches long and images coral1 and coral2 display the side and top of the specimen respectively. From the Atlas of Ordovician Life I suspect it is a tabulate coral of the syringophyllidae family and the Calapoecia genus. Is this reasonable? I would appreciate any comments.
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I want to call this coral but doesn't look like any I've seen from Texas, maybe it's the size and being agatized that I don't recognize it. Tabulate coral or rudist maybe? Found in mostly Cretateous Eagle Ford creek.
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From the album: Ordovician Fossils
Amsassia algae? Taxonomy Phylum: ? Class: ? Subclass: ? Order: ? Family: ? Genus: ? Species: ? Author: ? Geology Eon: Phanerozoic Era: Paleozoic Period: Ordovician Epoch: Late Stratigraphy Series: Upper Ordovician Stage: Katian Series: Cincinnatian Stage: Richmondian Sequence: C5 Unit: ? Provenance Collector: mtz Date: 07/07/023 Location: SW Ohio -
From the album: Ordovician Fossils
Amsassia algae? Taxonomy Phylum: ? Class: ? Subclass: ? Order: ? Family: ? Genus: ? Species: ? Author: ? Geology Eon: Phanerozoic Era: Paleozoic Period: Ordovician Epoch: Late Stratigraphy Series: Upper Ordovician Stage: Katian Series: Cincinnatian Stage: Richmondian Sequence: C5 Unit: ? Provenance Collector: mtz Date: 07/07/023 Location: SW Ohio -
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Palaeacis aequcrescente, Mineral Wells Fm
Mikrogeophagus posted a gallery image in Member Collections
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From the album: Missourian Series
Palaeacis aequcrescente, Palo Pinto Co. Mineral Wells Fm Feb, 2023 -
I found this Favosites turbinatus today while fossil hunting in Louisville, Kentucky. The problem is it was mixed in with Ordovician age fossils such as Hebertella occidentalis and Platystrophia ponderosa. The area was very eroded and it could have just been jumbled up with the other fossils. Do you think this is what it is?
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I found this in an abandoned fish nest in a human-made lake. One of my favorite finds!
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I drive 8 hours with a friend to a location he remembers from his childhood as yielding a lot. Oh boy it did. 100% worth the drive. Lake Huron, among the agates, pyrite, yooperlite, has some extraordinary Devonian fossils. All fossils were collected from the beach of his family’s property except for the fenestelid bryozoan, which was found at a gas station on the way there. please enjoy this collection of gastropods, petoskey stones, various tabulate corals, crinoids, stromatoporoids, bivalves, Brachiopods, tenteculites, horn corals, an unidentified agatized fossil in jasper matrix, and a pudding stone I felt like showing off too. Thanks! I highly recommend the area.
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Found two of these fossils now. Both on beaches that are probably Devonian in age. One is from SW Wisconsin on Lake Michigan and the other is in the Lower peninsula of Michigan from the shores of Lake Huron. Organ pipe coral or some sort of burrow trace fossil? Thanks!
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A few years ago, I found a fossilized something on the Beach at Cape Henlopen. It was embedded in quartz. It looked kinda like a belemnite, but the wrong material. I was told by Plax that it was much older than our cretaceous belemnites. I tucked it into a spot on the shelf and wondered about it. Since then I have seen a few posts here and there from folks in NJ finding nice little paleozoic pieces on their side of the bay as well. This summer, I made it a mission to explore the Delaware beaches and see what I could find and how far north they went. I began at the cape and worked my way north, one beach to a trip. Cape Henlopen's beach is rather lacking in pebbles this season, so not much to find, but I know they turn up! I have spotted them here and there in the intervening years. The next few trips were Bowers Beach. Oh, yeah! Some are impressions of brachiopods and crinoids are so tiny in big pebbles that is just isn't worth it to take them home and wonder where on that pitted rock I found something recognizable. Others are very distinct chunks of coral replaced with chert, some with crystal quartz in the gaps between structural elements. Each time, I came home with a couple of fistfuls of nice little pieces, mostly about 1" across. The next stop was the beach in Battery Park, in New Castle. This is not a nice bathing beach. It is on a heavily-industrialized section of the Delaware River. The beach is littered with slag, brick, glass and bits of other man-made "rock." But, the black slag definitely allows the brown chert to stand out more. Bingo! The prettiest horn coral I've found yet, plus a few other nice goodies. All told, I came home with about as much as I usually find at Bowers, but cutting my travel time from over an hour to just 20 minutes. *Insert Happy Dance Here!* The last stop was a rare little stretch of river bank in Claymont, a mile or so from the northern border. The stretch was pretty narrow and short. There were plenty of pebbles, but not much chert. Nothing distinctly fossilized. Oh, yeah, and on the way BACK, I found, facing into the woods and hidden by the vegetation, a "No Trespassing" sign. Now they tell me. Ah, well, now I know it isn't worth the trouble anyway. The Delaware Geological Survey, as far as I can find, has no public record of fossils at the beach. They note the Cretaceous at the C&D Canal, the Miocene in a farm field that got bulldozed for a highway, Pleistocene silicified wood in the fields and streams just south of the canal, and plant impressions from the canal down to the southern border. The corals and other marine impressions in the chert are Paleozoic, possibly Devonian or Silurian, but no one seems quite sure. They were part of the ancient sea bed when the Cretaceous stuff at the canal was still alive and can be found in the pebbles there, too, occasionally. I find it really neat and kind of surreal to think about all those fossils that were ancient when my ancient sea shells were still alive.
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Happy new year to all members! Today I would like to present some of my finds of tabulate corals. I am grateful if anyone can help to identify the family, genus or species. First I will present corals from the Kalvsjøen formation, late Ordovician in Hadeland, Norway. I think rock 3-8 have the same species. Rock 1 and 2 are most puzzling so I present those first. I see several kinds of corals in them and not only corals. Can you also see the nautiloid? Next, some rocks which I believe have the same kind of coral: Rock 3 - the biggest coral I found in the area, more than 50 cm broad (still in situ), worthy to be in a museum: Rock 4, very smooth surface, maybe rounded by the glacier or river: Rock 5 - size is same for the diameter of the coralittes: Rock 6 - same size of coralites Rock 7: Rock 7 Rock 8- in situ:
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I would like to start present some of my coral finds, or what I believe are corals. The first are from Tyrifjord lake area in Norway, I am uncertain of the formation, but I believe it is Ordovician of age. Although one paleontologist told me that the area has Silurian sandstones of Early Silurian age, a geological map I found also includes some Ordovician outcrops. These I presume are favosite corals. Is it possible ID their order, genus or species? Their sizes are about 10-12 cm long. I am not sure these are sandstones or limestones. First rock: Second rock: Thrid rock (this I left in situ): Finally, from same location:
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I found a strange little critter in a chunk of Tabulate coral from the Nashville area when I was cleaning it. Most fossils from the area are 438-458 million years old. Any idea what would inhabit tabulate coral? I also included some other areas of the 20 pound chunk of silicified Tabulate corals. They vary in direction and over lay each other in various directions. I added more addition pieces to show high silicification and types in the area. The little critter is about 5mm across the dome.
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The fossils in this stone are probably Thamnopora sp., a tabulate coral common in the Verde Valley of Arizona. Normally it appears in dolomite from the late Devonian (Frasnian), This specimen was picked up way outside the normal range, in an ancient riverbed, where rocks generally come from the Martin and Redwall limestone beds to the west. What's weird (to me) is that this stone matrix is impervious to HCl. No reaction at all, as if it's chalcedony, but it doesn't look or feel like chert or any other chalcedony I'm familiar with. Does anyone have an idea what this stone may be and what that might say about its age?
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Hello, everyone, I could use some help with this odd little tabulate coral I found yesterday in an old gravel pit in southwest Michigan. I can't guess at a formation or age since it's glacial debris, but the things I find range from possible Ordovician (rarely) all the way to lower Mississippian. I think it must be either Devonian or lower Carboniferous. When I first picked it up, I thought it was just another type of Favosites, given the corallite shapes and what turned out to be large mural pores (towards the left) when enlarged: (EDIT: TqB has suggested parasite traces for these holes I was calling 'mural pores!') But on the other end, the corallites are showing what I thought were curved, incomplete tabulae like Michelinia, but found out after talking with @TqB that they may be funnel-shaped. I forgot to include a size scale, but the corallite diameters range from about 2 mm to just under 4 mm. We're having trouble coming up with cerioid infundibuliform tabulate corals that might be possible for Michigan, and Tarquin suggested that the coral experts here might have some ideas. Many thanks! Lisa
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The attached photo is a group of Thamnopora corals found in the Devonian Martin formation - dolomites of central Arizona's Verde Valley. There is also a group of tabulate corals that I suspect are Syringopora sp.. but some collection notes by others don't show this genus, but they do show Aulopora sp. as found in the same location. See the small worm-like cluster near the center of the image. Can any of you confirm which genus is in the image?
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From the album: Lower Devonian Helderberg Group in Eastern NY
Favosites helderbergiae from the Kalkberg formation. -
A few days ago after searching our creek for fossil specimens I came across this sticking out of the leaves. It turned out to be larger than I expected, but it was getting dark so without a second thought I hastily yanked it from the ground and ran home with it. I cleaned it up a bit - all smug and pleased with my find. Then that evening I had the good fortune to read Robert Boessenecker’s excellent post about field notes. I’ve always thought fossils were awesome, and have collected them casually since I was little. I never put any real effort into learning more though. In the last few weeks I’ve only just scratched the surface and found myself among you good people because I couldn’t stop wondering what a certain fossil I had found was. You all helped me ID it, and it really started me on this whole fossil thing. Back to the fossil. I slapped myself upside the head and vowed to return to the site the following day. Luckily I knew exactly where it was located and there was the hole from where I had found the fossil so the lesson learned was much less painful than it could have been. 20 inches from the first hole I found this: Then things got interesting... After a few days of careful notes, digging, pictures, and some light prep: In the above picture they are arranged exactly as found. With north straight left of the picture and south straight right. North is also downhill and south is uphill. They were about 7 yards from the creek and I think pieces 1 and 2 were originally exposed by flooding. After some attempts at fitting them together here is the main base: The following picture is what I believe goes on top of the base. However I can’t get it to line up perfectly yet. All the pieces that have fit together fit very well, but since piece 5 was found uphill and behind/south of piece 4 it makes me think pieces 1 and 2 were originally above the base pieces and erosion caused them to be downhill from the buried pieces. Pieces 1, 2, and 5 fit together exactly. 7 could fit on top of 6 but not as perfectly as I can get the others to fit together. A few more detail shots. The only other thing in the excavation that was interesting so far was this specimen which I think may be a piece of Echinoid spine. It was underneath piece 4. I think it may be a species of Favosites, but further research on my part is needed. I’m still working on the stratigraphy of my area. I got lucky because the creek that I found it at is currently about to break its banks and flood the site. Hopefully I’ll be able to find some more pieces of the top section. I know it's a common fossil but I can’t wait to get back out there. I will update as I dig more!
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Hello, is this a tabulate coral? Found in Manitoba. Thanks for your help.
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Monday morning was dreary here in Central Kentucky. The sky was cloudy grey, and the rain was sputtering off and on. I didn't let that dampen my spirits though. I had planned to go fossil hunting and nothing was going to ruin my day! I grabbed my hunting gear, a cup of coffee, dropped my daughter off at daycare, and headed out. I arrived at the Upper Ordovician (Drakes Formation) spot that I had found this year. The last time I visited this place I didn't have time to really enjoy myself. It was more of a smash and grab. A rush to see if anything was actually there and to grab what I could. This time I was determined to spend more time at my new found hunting grounds. Not even a little wind and rain would stop me. After about a 45 minute drive I arrived at the road cut. The last time I visited, I looked through the scree at the base of the cut and found items that, over time, had washed down from the rain. Many of these pieces didn't fair well with the 5-6 meter drop. After a few minutes of looking at the strata of the cut, I determined that the most fossiliferous layers were at the top 2 meters or so. I decided that I needed to check out the top instead of the bottom. I'm glad I did! After a short walk and hike up the gentlest slope I could find, I made it to the top. This is what I found. A loose layer of dirt (well mud since it was raining...) with coral heads and fragments everywhere! All different shapes and sizes. whole specimens just a few cm across to ones that where half a meter or more.
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I found this in rail road ballast, so I do not know original state. I believe more western USA. any ideas on possible location and other comments?
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Beach Combing for Ancient Corals on the Delaware Bay
I_gotta_rock posted a topic in Fossil Hunting Trips
Just a short video of a quick trip to the beach last week to enjoy the spring sunshine! -
I found this in the NSR yesterday, and it is very similar to a Tabulate coral I found in the NSR a while back. Here’s the discussion on the forum about that specimen: http://www.thefossilforum.com/index.php?/topic/78070-mosaic-of-crystal-north-sulphur-river/ This one is worn a bit more, so I’m confused as to whether it is also a Tabulate coral or Rudist, but they have very similar characteristics. The sections don’t seem to be as square as Rudist. Any help is appreciated!
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From the album: Delaware Fossils
Tabulate coral Paleozoic Bowers Beach, Kent County, Delaware -
I am pretty sure this is coral of some sort but not certain. Almost looks like the tentacles of an anenome but I am sure anenome is too soft for preservation. Found in the Pennsylvanian oolitic Winterset limestone. I will post a few pictures and will certainly take more if needed for an ID! pic1 and pic4 were brushed with a bit of water to enhance the contrast a bit. Thanks for taking a look! pic1 pic2 pic3 pic4
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