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Showing results for tags 'ordovician'.
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Arthropod resting trace
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I pulled this one out of a creek bed a couple weeks ago but cant narrow it down. Any ideas? Its from the Georgian Bay fm (Upper Ordovician) Forgot to add: the specimen is ~5cm/2 inches in length
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From the album: Trilobites
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- asaphid
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I am finally getting most of my trilobite parts identified but still need some schooling on this pygidium: It was found in the Platteville/ Ordovician in SW Wisconsin. It is 4cm by 4.5 cm In addition, these two plates contain what I thought were just pieces of Isotelus, but the more I looked, the more I questioned my thoughts. Agree or change the ID? These plates are 12 inches by 6 inches. The asterisk's mark where the specimens are.
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posting this for a friend. Found in Charlotte, TN. Middle of state. Could be Ord, Sil, Dev, but my guess would be Silurian from the color of the matrix. Any ideas, it's got me stumped. LOOKS LIKE THE AGE IS MISSISSIPPIAN
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I have two brachiopods that need IDs. The lighter one was found in the Galena/ Ordovician rock outcrop of NE Iowa. The darker one from Decorah Shale/ Ordovician. I am sure @Herb will have an answer!! Can anyone else beat him to the solution? Thanks, Mike
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As monthes passed in 2017, i wasnt under the impression the year was that good fossilwise. But now it's over and after rewieing what i found during my different trips, i must say it has been a hell of a year. So here come most of my 2017 best finds. This is a trip in some french hunting place, mostly nothern half, From west to east, from ordovician to cretaceous. I hope you will enjoy the diversity
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From the album: Best of 2017 finds - a year in review
Block of 2 Neseuretus tristani La Dominelais - Brittany - France - Ordovician - Landeilien (-460 MA) - found on february 2017 -
From the album: Best of 2017 finds - a year in review
Block of 2 Neseuretus tristani - close up of the better preserved one. La Dominelais - Brittany - France - Ordovician - Landeilien (-460 MA) - found on february 2017 -
From the album: Best of 2017 finds - a year in review
Neseuretus Tristani and Colpocoryphe Rouaulti , 2 trilobites from the ordovician shales - La Noe Blanche - South of Rennes - Brittany - France - collected in november 2017 -
From the album: Best of 2017 finds - a year in review
Ectillaneus giganteus from the ordovician shales South of Rennes - la Dominelais - Brittany - France - collected in december 2017 -
From the album: Trilobites
Pseudogygites latimarginatus- 1 comment
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Here are my finds from the Verulam fm in Brechin Ontario. I had never been to an active quarry before so it was cool to see some of the machinery in addition to the unending supply of rocks to split. The temperature was amazing for December and we didn't get any rain. The very bottom of the quarry exposes the Bobcaygeon fm but it was flooded this time. @Malcolmt thanks for taking me to your spot! I remember what you said most of these are but will need reminding on a couple... 1. Pleurocystite - sadly missing the stalk and one of the arms but great to find one (Didn't know they existed until Saturday) A few of the plates fell off so I got a better look at the structure underneath before gluing it back together 2. Ceraurus trilobites 3. Isotelus trilobite 4. (forgot the name) partial trilobite Needs some cleaning but I'm afraid to damage it 5. Crinoid calyx (forgot the name) 6. Unknown cephalopod
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Its not often that I find something unrecognizable from the Cincinnatian. This was found last month in the southern extension of the arch that outcrops around Nashville. Any ideas?
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I have found a straight shelled Cephalopod in the ordovician of Russia. Middle ordovician asery level of the Leningrad area. Its different from the usual cephalopods found there. The septa are closely spaced and the siphuncle is small and close to one side of the couch. (Not the centre) From what I can tell it's neither orthoceras nor endoceras. The shell has ribbing on the bodychamber it which is also atypical. I would really appreciate any further insight!!
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I am wondering if someone can identify this Bryozoan that I found at the road cut in St. Leon, Indiana- I have not found a another one like it. @Peat Burns / @Herb possibly you could help.
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Just putting away my trilobite finds for the winter and decided to try to place a name with a face to a few, well a dozen , of my unknowns. Most of these were found in SW Wisconsin in the Mifflin of the Platteville Formation, Ordovician. It seems very difficult to ID trilobites when they present themselves as partials. These are not beautiful specimens, but knowing their ID can help me with future hunts. Thanks for any help. 1. Are these Thaleops or Illaenus cephalons? I can not figure out how to differentiate. 2. Is this a pygidium? If so, it is quite large. Any thoughts on how to label this? 3. What is the ID for the two partial cephalons with what looks like an eye on each one? 4. Is this a hypostome from Basiliella barrandi? 5. Can't place these pygidiums . Kinda isotoleus but kind of bumastus. Actually I have no idea!!! These actually came from the Maquoketa, not Platteville.
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Hello, I want to put together some pics of some of the reef material that I have found in Streetsville, Mississauga, Ontario on the banks of the Credit River. It is now winter and I am missing the warm days in which I can go and wade in the warm waters of the river for fun. I just want to compile and share some specimens that whose photos I have not shared with. All the fossils belong to the Georgian Bay formation, Upper Member, which is late Ordovician in age. First is the common coral that displays an enormity of growth forms, Favistella alveolata (Goldfuss, 1826).
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I'm curious how one can determine whether a cephalopod fossil is an adult or juvenile? I seem to recall hearing from somewhere that if there is a double suture line in the middle of the phragmocone indicates it is an adult. Here are three Beloitoceras specimens I found at different localities. The specimen in the middle has double suture rings. Thanks for any insight.
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Well I got a new phone (Samsung Galaxy Note 8) on Black Friday and was playing with it snapping some pictures. Those of you that have been to my house know that I am totally disorganized and definitely need to organize my fossils. Thought I would share some of the disorganized chaos that is my basement fossil dumping area. This tends to be where fossils go to rest if they do not make it to the glass display cases (3) upstairs where I put the good stuff. But then that is a step up from the ones that never get out of the map drawers and boxes in the garage. One of these days I will get around to organizing things, just never happens to be today....... I suspect my kids will end up having to organize it someday......... (That's a scary thought)
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The story of the fossil meteorites What four small pieces of rock can teach us about the history of the solar system. By David Boehnlein, Astronomy, November 29, 2017 http://www.astronomy.com/news/2017/11/the-story-of-the-fossil-meteorites Yours, Paul H.
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Well the realm of my future fossils is just as chaotic. I suspect I have years worth of unprepped material here. Need to get my moving ...... I also have a garage full and several shelving units in another room As you can see they don't look that spectacular prior to getting some love and care.
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Just recently finished doing these for a few Fossil Forum members (Kane and Shamalama) Likely wont be seeing them for a bit so I thought they would like to see their bugs and knew neither would mind me posting them. None were pristine but a little prep helped.... First are a pair that belong to Kane and Debbie The second belongs to Shamalama
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Hello, bug lovers! I found some pretty cool trilobites this last Sunday at my favorite road cut in Wisconsin. Since I'm a bit of a noob with bugs I'd appreicate some help on IDs and a confirmation on the formation. I think this is the Platteville formation. But it could be Decorah.....? @piranha Sorry for the pics in advance. Lol Found as is. After a bit of prep. Gabriceraurus mifflinensis? Ceraurinella scofieldi (possibly more thorax)? Continued..........
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From the album: MY FOSSIL Collection - Dpaul7
Platystrophia ponderosa Brachiopod Trimble County, Kentucky TIME PERIOD: Ordovician Period (445-485 Million Years ago) Platystrophia is an extinct genus of brachiopods that lived from the Ordovician to the Silurian in Asia, Europe, North America, and South America. It has a prominent sulcus and fold. It usually lived in marine lime mud and sands. Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major groups are recognized, articulate and inarticulate. The word "articulate" is used to describe the tooth-and-groove features of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic feature (fossilizable), by which the two main groups can be readily distinguished. Articulate brachiopods have toothed hinges and simple opening and closing muscles, while inarticulate brachiopods have untoothed hinges and a more complex system of muscles used to keep the two halves aligned. In a typical brachiopod a stalk-like pedicle projects from an opening in one of the valves near the hinges, known as the pedicle valve, keeping the animal anchored to the seabed but clear of silt that would obstruct the opening. Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: †Orthida Family: †Plectorthidae Genus: †Platystrophia Species: †ponderosa
