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Found 12 results

  1. A couple of summers ago I found what is maybe my favorite Mississippian/Lower Carboniferous Visean shark fossil in Fife, Scotland and with some time off over the holiday season and pretty grim weather I've finally got round to prepping it When I found it there were three damaged but very near complete large Saivodus striatus teeth, the root minus the central cusp of either a smaller S. saivodus or possibly a Cladodus mirabilis and a partial unidentified spine. I've exposed and restored the three big teeth to make them look complete again as best I can for now and exposed the rest of the root of the smaller one but will leave it as is along with the spine. Unfortunately I cant find the original pic of it as found but originally the tooth on the far left was missing the tips of the lateral cusps and the central cusp from about half way, the middle tooth was missing about half its root and one lateral cusp, and the tooth on the far right was missing a chunk out of one side including the lateral cusp and the opposite lateral cusp. I used resin for the restoration which I carved and then painted with water color and acrylic paints and finished the cusps with a coat of gloss varnish and the roots with matt varnish. I'm fairly happy with the restoration, it does seem to look quite a bit better in real life as photos seem to show up the restoration a lot more. The teeth are on a nice big block I've cut a base on in a thin layer around what seems to be a ball of clay with calcite infilled septarian cracks again, there's a few different types of invertebrate such as bryozoans, crinoids, brachiopods and a nice coral which I love finding teeth with as it gives them context. The block is 14cm tall and the teeth are all 2cm x 2cm.
  2. My fossil hunting friend came across this object in a creek in eastern Missouri. At first glance this ~1 cm diameter ball with stout spikes would seem to be some sort of camerate crinoid, but the spikes cover the entire surface, with no apparent place to put arms, column, mouth, or anus. (Side note: That must be the crinoid folksong community's version of "Head, Shoulders, Knees, and Toes.") From there my fallback would be coral, or perhaps sponge, but the complete coverage around the whole sphere (see attached video) has me a bit baffled. The creek flows through mostly Meramecian (Visean) Mississippian bedrock, in particular the Salem Limestone. There is abundant chert, with common silicified fossils, which is what I believe this to be, though I have not examined it myself. Perhaps this is the internal mold of something? The chert bits I have seen from this creek, and from this region in general, are by and large not internal molds, but rather proper replacement fossils. I guess this oddity just has me reaching. Any thoughts with regard to identification would be most appreciated. video-1562025086_u3dNmuqY_sDVP.mp4
  3. Not had a chance to get out hunting much for a while but had a trip out to a new site the other day and found some brand new stuff I wanted to share! Just outside of the little coastal town where I stay in Fife, Scotland there's a Lower Carboniferous stromatolite bed known for its beautiful stromalolite formations in a hard cream colored limestone which can be cut and polished for use in jewelry. This stromatolite bed lies on top of Lower Carboniferous lava's and has been correlated with another, 30m above a bed called the Burdiehouse Limestone which I do a lot of my collecting from. This puts its age somewhere in the late Asbian. These stromatolites grew in a freshwater lake that had formed on cooled lava flows. Its a challenging and dangerous site to collect from on an extremely steep and crumbly wooded slope below cliffs, very quickly though I started to find beautiful fragments of the stromatolite bed as well as a completely weathered out example and lots of split-able limestone with the occasional fish scales, freshwater bivalves and microconchids. The real prize of the day though was a beautiful and perfectly intact Petalodont shark tooth just lying on the surface of a massive block of the stromatolite bed, this stuff is so hard and not bedded at all so the luck involved in this being broken out like this is staggering! Not sure of the ID of the tooth but think it may be a Petalorynchus sp. Its 19mm from the tip of the crown to the end of the extremely long root. This was the first thing I picked up, a small stromatolite that had weathered out of the formation almost perfectly intact.
  4. Mississippian limestone unusual find

    Hello all, I found this during the summer. It is from the Mississippian (Visean - Asbian/Brigantian) limestone of the Aran Islands off the west coast of Ireland. It is 2cm along the long axis. I Couldn't extract it so this is the only picture. Would love to hear your thoughts.
  5. Could use some help on these 0.5cm - 1cm invertebrate(?) conical spines in the well known Salem Limestone, a marine limestone of the American Midcontinent. They appear to be solid calcite but do not quite match up with the shapes of crinoid spines and echinoid spines that I know from the Mississippian. I have looked at umpteen Salem Limestone samples but have seen these spines at only one small locality. Any insights appreciated! but please provide your reasoning or evidence.
  6. Lithostrotion decipiens

    From the album Upper Visean fossils of Ireland

    Massive, colonial Lithostrotion decipiens. Tabularium + - 2.5 mm. 16 to 18 septa of both orders. Galway, West Ireland.
  7. Siphonodendron junceum

    From the album Upper Visean fossils of Ireland

    Fasciculate colonial Siphonodendron junceum. Corallites diameter up to 3 mm. No dissepiments. Galway , Ireland.
  8. Gigantoproductus latissimus

    From the album Upper Visean fossils of Ireland

    Gigantoproductus latissimus found in Menlough quarry, Galway. 108 mm by 51mm
  9. Scarce bryozoan. Dyscritella?

    Hi. Last month i've found this one on the Renmore Beach in Galway,Ireland. Early Carboniferous limestone from late Visean it's common all around Co Galway. I search for fossils in this county for 15 years and thats first fossil of this kind i got. Main specimens here are Siphonodendrons, Lithostrotions, Productids and many more brachiopods, corals, crinoids and gastropods. This one here I hope is bryozoan Dyscritella sp. I didn't look to my Mc Coy book yet but the species is described in Geological Survey of Ireland catalogue.
  10. Trace fossil or jellyfish

    Hi, I'd appreciate some help with this one, it's got me completely foxed and I can't find anything similar online. The matrix is a mudstone, it was a loose rock in a stream, the rocks in the area are all Brigantian (Upper Visean) - Carboniferous Cyclothem deposits (Northumberland, UK). There were 3 of these, all about an inch long, oval shaped, but fairly irregular, with faint radial lines/corrugations from a central 'spine'. They are three dimensional about a quarter of an inch thick. Small spiriferid brachiopod shell fragments in the same rock are undeformed, so I think the irregular shape is original. They remind me of small jellyfish but I think that's highly unlikely to have fossilised so I'm guessing some sort of trace fossil. All three are similar in shape and size so I'm wondering if there's a specific name for these, and whether it's known sort of creature made them? Cheers Steve
  11. ID suggestions please

    A recent post from joshyoowy reminded me of something I found a few years ago. It is about 20cm (7 3/4 inches) across. Carboniferous (Visean). Looking forward to your input.
  12. Strange monoplacophoran

    I'm having difficulty identifying this specimen. I found it in Osagean, probably Visean limestone in Lawrence County, Missouri, associated with various other monoplacophorans, which I believe to be kirengellids or something similar. The last picture is an example of an associated fossil of a similar size, being about 3.2cm from foot to apex. I also found in the same piece of stone a smaller, more rounded specimen, as well as fragments of a third. Stinchcomb and Angeli describe two species that share some characteristics with the fossil in question[1]. Kirengella oregonensis, which is found in cherts from the Roubidoux Formation (Lower Ordovician) in Oregon County, Missouri, is described as "strongly laterally compressed" with "aperture oval" (p. 971). And a new species, Wildernessia inexpecatans, from the same area, is described as having "apical curvature; aperture sub-elliptical forming cone; apex centrally located" (p. 973). Neither of these, of course, is what I have, since I am pretty certain my object came from a nearby quarry and is therefore Visean. But could it be another, later type of Kirengellid? 1. Stinchcomb, B. L., & Angeli, N. A.. (2002). New Cambrian and Lower Ordovician Monoplacophorans from the Ozark Uplift, Missouri. Journal of Paleontology, 76(6), 965–974. Retrieved from http://www.jstor.org/stable/1307116
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