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Showing results for tags 'coral'.
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I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. They look to my untrained eye like Honeycomb Coral (Favosites sp.). Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2:
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I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. I have several different rugose coral species, and I would love to know if anyone can refine that identification further. I thought the colonial rugose coral might be an Eridophyllum species, but I would not bet much on my identification. The third is truthfully in terrible condition and I doubt there is much to say about it, but I thought I would see. Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2: Specimen #3:
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Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Trying to learn, but am confused. I tentatively identified the below specimen as a Honeycomb coral, based on info from the below and input from local “experts”. None are Paleontologists, but one is a Natural History Museum Director. Begin quote: Favositid tabulates: Honeycomb corals The favositid corals are quite common. They usually formed large colonies. The corallite is prismatic in shape, resembling honeycombs. Favositids have mural pores, tiny holes in the wall of the skeleton, which connect different corallites. These pores are distributed in characteristic patterns and numbers, which are useful for distinguishing the various types of favositids. Favositids lived from the Ordovician to the Permian, at which time they became extinct. They are most abundant in middle Silurian to lower Devonian rock. Favosites is the most common fossil coral in Wisconsin. https://wgnhs.uwex.edu/wisconsin-geology/fossils-of-wisconsin/coral-gallery/corals/ Wisconsin Geological and Natural History Survey, UW Extension The confusing part is that some surfaces of this specimen show no pattern or regular form. Just like most of my finds. Are there any clues to indicate a rock of this structure may be a coral? Other than cutting it open? I have about 50 like this, but only two others show the typical pattern. The rest just have the “circles” on all sides. All are basically the same composition of material, but colors vary. All have inclusions of crystals. My vision is limited, so I only know what I have found after I wash it and look under a lighted magnifier with a loop. Photographing helps a lot as well. I just go on shape and colors when picking up. Then use a small hand held magnifying glass to examine. Sometimes wash off with a little water first. My son in law, who has (almost) a geology minor from local University, is amazed at what the glaciers “dumped” on my land. Note that a large part of the classes were related to local fossils, due to the abundance of them. Please let me know if my ID is correct, and any pointers for identifying specimens which do not show the structure, only the “circles” or “cavities”. Thank you. 1 2 3 4 5 6 7
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Hey all, I am working on a project within the Glen Rose Formation of Spring Branch, Texas. Could somebody take a look at these giant forams (Orbitolina texana) and see what the binding organism is. I originally thought they were oysters but now my professor suggests that they make be barnacles instead... These forams are roughly half a centimeter in diameter
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Hi all, During my trip to Resteigne, I namely found this coral. Here is the location info: Resteigne quarry, Belgium Jemelle Formation (mostly) Eifelian, middle Devonian; ~ 390 mya Any possibility to name the species do you think? Thanks in advance for your replies! Max
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Hi everyone! So Friday morning, after a few enjoyable days of skiing in Switzerland with my dad, we decided to leave the village because the weather was really becoming horrible for any further skiing (especially for a beginner like me!). I had done a little bit of research as to what fossil locations we could visit on the way back home, and eventually Kevin @Manticocerasman very kindly pointed me towards the site of Resteigne in Belgium! A (no-longer in use) quarry known for its Devonian brachiopods, corals, crinoids and sometimes trilobites. Which was a fantastic opportunity for me, because in my so far 7 years of fossil hunting I had never been in a quarry or hunted for trilobites!!! So seizing the opportunity, we booked a Bed & Breakfast in the small village of Resteigne. We arrived late that evening after a long and annoying road, but luckily the hosts were still up and warmly welcomed us. The man knew quite some things about the great geology of the area, and told us that apparently this region was now a Geopark of the UNESCO! (To avoid any confusion, we are allowed to collect fossils here without any problems. It is not like the national parks where it is forbidden to take things out). He sometimes found some fossils himself when he was going out on walks. After a good night sleep and a delicious breakfast, we set out to the quarry.
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From the album: Northern's inverts
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Ok location, near old limestone quarry in moni area. it is actually just a 10% of the actual visible coral there.. i think too much water or/and sun made it fragile, and my bag was full, and I was too tired to sit there and do what I had too. But here it is. Same depth, matrix and just a couple of meters away from the Strombus coronatus gastropod fossil. I included some 'thingies that could belong to the coral, or be something else. and the "thingies", I have another 1-2 of those.
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Second posting attempt. Sorry of there was a delay and this is a double topic Central Wisconsin, USA. Glacial Drift/Green Bay Glacial Lob W. Advance/Glacial Lake Oshkosh Area. Ordovician onward. Unlike anything else I have found. Trying to identify all the various corals/critters that were preserved in this. So, have possibly identified barnacles, the abdomen end of a horseshoe crab, various shells/snails, and several corals. Please let me know if my ID’s are way off. Could this have been a coral colony that was overtaken by 1 or more other colonies? Then, as the corals died, barnacles moved in, along with other marine life? So fascinating. Putting this one in the hands of the experts here. Camera will always focus on the size reference in my photos (cell phone camera), so cannot do that. Size is 10.5 cm long, by 7.5 cm wide by 6 cm thick. Hope this helps. Posted this on another forum and was told it was nothing more than a chunk of chert. Some photos have details of what I think is there. Thank you so much. 1 2 3 4 5 6 6 9 11 10 12 13 gray coral 18 gray coral 17 gray coral 16 gray coral 15 close 1 words gray coral 15 gray coral 14 close 1 words gray coral 14 A snail shell? snail Posterior end of Horseshoe Crab? HS Crab[/url A barnacle? barnacle Thanks for looking. ud 2d
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Favosite, Tabulate, Something Else? Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Size: 7.25 cm by 7.5 cm by 7 cm (edges of “triangle”) by 3 cm thick. Wondering if this is worth some refining, or if the features would be lost? It has a pretty thick coating in places of deposits. All comments welcome on ID and potential for refining. Thank you. coral 4 coral 4a coral 4b coral 4e coral 4c coral 4h coral 4i
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Rudist Coral? Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Been lurking here for a couple of years, learning everything I can. Finally decided to join. Always loved fossils, but never had access to many. That changed a couple of years ago, when I unknowingly purchased some very unique land. The age of fossils I find on my property range from Ordovician era to more “modern” times. Have found Chain Coral, Favosites and Horn Coral previously. Plus a few other marine, plant, bone and tooth specimens. There are many moraines in the area, some smaller ones are on the land I have. I posted the below specimen on another forum but was told it was “just a hunk if quartz”. Hoping all the experts here can shed some light on this. The overall feel is waxy, not like quartz around here. There are some inclusions of quartz crystals. If it is “just a hunk of quartz”, then it is an interesting quartz rock. Apologize for not being able to put a size reference in the photo, as my phone kept focusing on the size reference. The specimen is 2”, 50 mm across by 1 ¾”, 45 mm on the top. The sides are 1 5/8” 40 mm by 1 2/3” 70 mm. The formation on the top which reminds me of Rudist Coral is 3/8” 9mm, across. The colors in most photos are true. I did change them a little in some photos of the top to enhance the formations. Sorry, they are a little blurry. Taken with my phone, a portable photo tent and combo of LED and natural, North facing light. During the glitch over the past few days, I composed several posts for ID. Please let me know how many I an post right away, or if it is better to wait a few days between posts. Top: Top a top b Top c Top d Side 1: side 1a side 1b Side 2: side 2 Side 3: side 3a side 3b Side 4: side 4 side 4a[/url Bottom: bottom a bottom b bottom c Please let me know if additional photos are needed. I tried to take some of each surface, but it was tough. I can crop the other photos I have to show more detail in specific areas. Thank you.
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Hi all, On my trip to Resteigne last weekend, I namely found this thing. At first I thought it was some kind of coral, but others are having their doubts. So now me too! Here is the location info: Resteigne quarry, Belgium Jemelle Formation (mostly) Eifelian, middle Devonian; ~ 390 mya I started prepping it a little bit, and noticed that this matrix was a little bit softer than the other matrix... So maybe this is from another formation. If I remember correctly, this was one of the few finds from the second level (the levels of the quarry are ground, 1st, 2nd and 3rd level. So maybe the different levels indicate a different formation), opposed to the majority of other finds which were from the first level (and have a much harder matrix). So. What do you think it is? Looking forward to your answers! Max
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Old time Devonian coral specimen from Devonshire, UK. Frechastraea
TqB posted a topic in Member Collections
Specimens of corals from the Devonian limestones of Devonshire in England are hard to come by nowadays - this is one I've just bought and repolished. It's likely to be a 19th century sample from when the quarries and marble trade were flourishing - many such pieces were sold then as scientific specimens, and many more were used decoratively. Frechastraea sp. , Givetian/lower Frasnian, Torquay area. The brass scale bar is 1cm long.
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Hi everyone, I found those colonial corals on the upper part of a rudist-coral reef. Can anybody identify them? Limestone, Maastrichtian strata, SE of the Pyrenees. Thanks Piece 1 Piece 2
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You guys sick of my threads yet? Sorry, there’s a lot more to come. Here is an interesting surface which features may be purely natural erosion or a fossil imprint. Coral maybe? Almost looks like fossil rain drops, eh? Any clue if it’s organic in origin? From northern Illinois.
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My first attempt at thin slicing to identify rugose corals. Used a tile saw and a belt sander followed by sand paper. I think I can see enough of what I need to for identification of this specimen, but I think I'm going to invest in a flat lapidary grinder and a diamond embedded wheel. I'm tired of putting corals into the collection with only coarse identification. Here's the poor-man's version / first attempt of a thin slice (obviously needs to be a lot thinner).
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So, I vanished from the forums for several months while dealing with a new career and some health issues. While I spent most of my time focused on being a new teacher, I couldn't break the bug over the winter season. While I did no collecting of my own, I proceeded to spend a ton of money online purchasing additions to my collection. I am pretty proud of my modest, but growing collection and wanted to show off. Where better than on TFF! This is going to take more than a few posts...
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At first I thought this one was a rock, but looking at it closer it looks like it could either be a coral or a sponge, or a rock with holes in it. You guy know what it is?
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Some more coral from Lake Huron. Same genus as the Hexagonaria, or a different genus? I found two different individuals. I've got pictures of them both.
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Back again with only two items we couldn't label or didn't recognize, but were tucked away in boxes, an indication whatever it was, it was important. #1: ??? Size indication: Half an inch - around 1,5 cm. Really small. #2:??? Size indication: Each circle is only a few millimeters wide. Thanks in advance!
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Hi, I live in an area where there are plenty of upper cretaceous rudist-coral reefs to study and for the time being my interest is focused on them. I’m an amateur, not a sound paleontologist. Hope to learn a lot together.
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Yesterday it was a nice winter day here in Brown County TX, 30 degree in the morning up to 70 by early afternoon. Took the kids out for a while to a friends ranch for a little fossil and artifact hunting and some rock throwing. Found a few interesting pieces and a couple artifacts. One decent point and a "hoe" digging tool (probably) based on the usage chips on the wide edge. Also my son found a neat bryozoan ball and a brachiopod that has lolophores preserved and showing. Crinoid calix. Red stone is Fuslinids and worm tubes. And I keep a couple of horn corals that had defined growth rings just because the looked neat.
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Hi this is matt again I have 2 more fossil corals to show everyone here are the photos enjoy
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Hi this is Matt again today I went down to the creek by my house and found a fossil with 3 coral fossils in it so far this has been the best fossil I have this year so far. when I was down there most of the creek was clear of the snow and that was how I found this great fossil today. here is a photo
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