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Showing results for tags 'middle silurian'.
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Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.
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- atrypa
- atrypid
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- atrypa
- atrypid
- ayrshire
- brachiopod
- brassfield farm
- browgill beds
- bryozoan
- calymene
- cenerville
- crinoid
- cumbria
- cystid
- cystiphyllum
- dalmanites
- dimerocrinites
- dudley
- eostrophodonta
- eostrophodonta mullochensis
- favositella
- favosites
- gastropod
- girvan
- graptolite
- hallopora
- heliolites
- horn coral
- howellella
- idwian
- inarticulate brachiopod
- kirkidium
- leptaena
- leptostophiidae
- leurocycloceras
- llandovery
- lower silurian
- ludlow
- malvern hills
- microsphaerirhynchus
- middle silurian
- monograptus
- nautiloid
- newlands
- ohio
- oriostoma
- orthid
- orthocerid
- palaeofavosites
- palaeofavosites mullochensosis
- palaeofavositinae
- pentamerus grits
- platyceras
- protochonetes
- resserella
- rhynchonellid
- rugose coral
- salopina
- schizotreta
- silurian
- skelghyll
- skelgill
- sphaerirhynchia
- spiriferid
- spoiler alert
- strophomenid
- tabulata
- tabulate coral
- telychian
- thecia
- trilobite
- tryplasma
- upper silurian
- wenlock
- wenlock limestone
- wenlock shale
- worcestershire
- wrens nest
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From the album: Fossil Collection: DC Area and Beyond
Brachiopoda Cumberland, MD Rochester and McKenzie Formations Middle Silurian- 2 comments
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- brachiopoda
- id needed
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From the album: Fossil Collection: DC Area and Beyond
Holocystites sp. Napolean, IN Osgood Shale Middle Silurian-
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From the album: Fossil Collection: DC Area and Beyond
Cephalopoda Cumberland, MD Rochester and McKenzie Formations Middle Silurian-
- cephalopoda
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These are all of my unidentified fossils from my trip to the Ross Formation in Sugar Tree, Tennessee. Most of the fossils found were Brachiopods, Crinoids, Trilobites, and Horn Corals. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
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- lower devonian period
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The locality of this fossil was 5 minutes from the Ross Formation in Tennessee. My professors believe that this is a trilobite that has undergone replacement. Specifically the Shepard's Hook Trilobite.
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- lower devonian
- middle silurian
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From the album: Fossildude's Purchased/Gift Fossils
Aulacopleura konincki, Wenlockian Liten Formation, Lodenice locality, Middle Silurian, Czech Republic.© 2023 Tim Jones
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- aulacopleura konincki
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Hello, everybody! I have been sorting through my wenlock limestone material, Middle Silurian and have a couple of personal problematica. I am wondering if any of you brilliant folks could help me out. Here is an object which seems to be an epibiont on a Favosites coral. 5 mm long and about 1.5 mm diameter at the widest. Is it a cornulitid ? Or a single corallite of Aulopora? Something else, maybe? And another one? On a solitary rugose coral. 3 mm x 1 mm. And an example of Aulopora from Wiki to compare : And a cornulitid that looks a bit similar : I would be very grateful for any help. Then there is this. Is it the worm Keilorites? Length 1.9 cm, width 2.5 mm max.
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- aulopora
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These are two fossils of the same species collected at the Long Pond Road Site along the Erie Canal in Greece, New York. They are from the middle Silurian Rochester shale. These were collected last winter, and I have since been unable to identify them. Both are no greater than 3cm in length. Some interesting fine detail is visible on the first specimen. The American dime is 1.8cm in diameter.
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- invertebrate
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Have been under the radar a bit here on the forum, but plan to get more involved. Talk about involved!...the specimen featured here has been sitting in my shop for a number of years. As I prepared numerous Waldron specimens from my huge stock of unprepared material, I kept thinking and planning the preparation of this piece. This specimen was collected from the Middle Silurian Waldron Shale Shelby County, Indiana. The crinoid was found on the floor of a bench of Waldron Shale with only the very top of the crown exposed. So, the crinoid was in situ. From what was exposed I could see that the inner arms were missing. I could see two support arms with no inner arms. Being quite familiar with the Waldron, this is to be expected in many cases. The high energy of the Waldron environment caused the toppled specimen to be "re-worked" by currents thus uncovering the crown and allowing for the inner arms to disarticulate from the specimen. So, I cut the piece out with my rock saw from the exposure floor and brought it back to my lab. The specimen broke prior to removal about 2/3 of the way down from the crown so I could see the cross section of stem so knew approximately how long the stem was. The stems get smaller diameter as they move away from the crown. Firstly I glued the two pieces back together with 5 minute Epoxy. I then pulled a thin piece of Waldron Shale from my stock (I keep nice thin, clean pieces of shale I come across when collected to back specimen), carved out a depression the size of the exposed calyx andf then glued the thin piece of shale right over the crinoid slab. I then cut the piece I glued on to the same dimension as the original slab...still with me? Lol. Now comes the INVOLVED part I was referring to at the beginning! I had already marked on the back side of the now sandwiched crinoid approximately where the crown was. I then proceeded to prepare the specimen from the other side, which was the downside of the original toppled specimen. This side would likely have remained buried and thus fully articulated...I hoped!...Once I carefully found the crown, I prepared it first and as predicted it was wonderfully intact save for half of one inner arm...Hey, I'll take it. What followed can only be imagined by looking at the picture featured below. Hours and hours of work exposing the crown and stem with an ever watchful eye for additional taxa, very often associated with stems of the Waldron Crinoids as secondary tier inhabitants. The most common are the Rhynchonellid Brachiopods, note how the pedicle of the brachs are facing the stem. A couple of small gastropods and bryozoans round out the additional taxa exposed thus far. Specimen measures just shy of 12 inches long with the stem (rule is 15 cm.) Note the multiple scribe marks. The specimen was exposed initially over 1.5 cm below the surface. The marks are where I'm leveling out the surrounding matrix so the specimen doesn't sit in a trench. This will all be painstakingly smoothed out and contoured. Also, note the crack line through the stem towards the bottom. Close up view of the business end of the crinoid. Despite what it looks like now, this will be a beautiful specimen once completed. I will keep you updated on the progress.
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- crinoid
- middle silurian
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Earlier I posted a specimen that was sent to me from the Upper Peninsula of Michigan that turned out to be a non-calcareous alga from a Middle Silurian Lagerstätte: Late this summer I travelled to the site to search for more. After about a half hour of searching and splitting rock, I discovered that the algae and other fossils were concentrated in huge nodules. I collected some tonnage to bring back to "dissect" with a 3 lb sledge and a tile saw. Here's most of what I brought back: Here's most of what remained as "keepers" after much splitting and cutting: I was very pleased to have found more algae including what are likely multiple taxa.
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- michigan
- middle silurian
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- 3 replies
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- encrinurus
- michigan
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I think this one is a conodont (see tags for formation, location). Scale in mm. No conodonts were reported by Ehlers (1973) thorough study on these formations, so I am guessing if this is a conodont, it's a somewhat rare find.
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I think this is a stromatoporoid but would like additional opinions before I label it. It comes from dolomitized middle Silurian limestone of northern Michigan. I thought it might be coral that had undergone diagenesis, but there are well-preserved Favosites present, so I'm pretty sure it's Stromatoporoid. They were abundant, as were the corals. Here's one in the matrix: Here's my specimen (cut with saw): Here's a "thin" section and an acetate peel:
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- michigan
- middle silurian
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