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Showing results for tags 'graptolite'.
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Last week I visited a silurian site and found this stone. I wonder which kind of animals this is? And which kind of stone, which is blue inside with a relative thin layer of white material on the surface. The animals are "printed" on the surface. Martin
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Hello Found some I believe to be Graptolites and would like to be able to ID them better in the field. Is there a guide available or even a good book anyone might recommend for this. Attached pictures are what I think are graptolites but would like to verify. Surface finds Thank you all for the help Tom
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This was found in Maine, but was likely brought in as crushed rock from Quebec by a Canadian railroad company. Dendroid graptolite is my opening guess.
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I have two items on which I am requesting opinions. These are from a dolomitic nodule from the Schoolcraft Fm. in the upper peninsula of Michigan. The first one I think is a pygidium of the trilobite Scutellum. (note there appear to be some other trilo"bits" surrounding it). @piranha, what do you think? Here is an image from Ehlers (1973) Stratigraphy of the Niagaran Series of the Northern Peninsula of Michigan that he has as Scutellum laphami.
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From the album: Silurian Graptolite
Silurian graptolite Monograptus Elton Beds Wenlock Edge Shropshire UK -
Hello there! Well, I tried to take Viola out for a little fossil hunt by Mimico Creek in Etobicoke, Ontario (Georgian Bay Formation, Upper Ordovician) this afternoon because when I checked the forecast this morning it looked like it was going to be ideal fossil-hunting weather - a mix of sun and cloud with temperatures in the mid-20s Celsius. When we arrived, however, it began to rain - we toughed it out and came away with one piece before it began to pour and we called it a day. I was disappointed since I was hoping to spend a few hours there, but the one piece we took home looks like it might have a graptolite on it, which is quite exciting since I have yet to find one in my local haunts. Please check out the photo below and let me know what you think: Thanks in advance for your help! Monica
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I had a chance to stop for a half hour at a roadcut near wax, ky to look for blastoids. While i didnt find any of those, i did find a cool bryazoan, another creature that may be a kind of graptolite, and a silicified section of crinoid. Thanks to those of you who helped me find the area... it is pretty cool. Sometime i'll be able to spend more time there, and i'm already looking forward to it.
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I had a chance to stop for a half hour at a roadcut near wax, ky to look for blastoids. While i didnt find any of those, i did find a cool bryazoan, another creature that may be a kind of graptolite, and a silicified section of crinoid. Thanks to those of you who helped me find the area... it is pretty cool. Sometime i'll be able to spend more time there, and i'm already looking forward to it.
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G'day everyone! I have recently returned from a trip to NSW where I did a bit of collecting in exposures from the Gunningbland Formation (450 Million Years Old). I found this fossil on the last day of the trip and at first thought it was a bryozoa. Though, after a bit of observing and some comments from members of the forum, I believe this could be a dendritic graptolite? Graptolites have been recorded from the formation but I have not found any information on dendritic graptolites from Gunningbland. Any help would be much appreciated. Thanks, Dan
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From the album: Invertebrates
Graptolites non det. Silurian Vogtland Saxony Germany -
From the album: Invertebrates
Graptolites non det. Silurian Vogtland Saxony Germany -
From the album: Invertebrates
Graptolite non det. Silurian Vogtland Saxony Germany -
From the album: Invertebrates
Graptolite non det "Pneumatocyst" Silurian Altmannsgrün Saxonia Germany The pneumatocyst was interpreted by Ruedemann, 1895 as a flotation device and indication of a planktic life style of the graptolites. -
Dear all, I recently went for a trip to Wrens Nest and found this small, what I believe Dendroid Graptolite. It measures ~2cm (apologies for the poor quality of the image). If anyone could suggest a Sp. ID, or even if it is a Graptolite that would be very much appreciated. Thanks, Tom
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Was digging around in some boxes and found this specimen... it has a decent number of species on it! Although its nothing compared to another plate found at the site by some friends. We were going to split it but decided not to. Ended up having a couple hundred individual graptolites inside... but anyway! Sorry about the horrible pic as per usual. Early Ordovician (Bendigonian Stage) Bendigonian Formation, near Bendigo, VIC Australia.
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Graptolite collected from Spring Gully, Bendigo, Victoria.
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Hello Everyone Today my dad and I visited Bullengarook slate quarry to hunt for some graptolites. The site is aged middle Ordovician and was originally used for slate and gold mining in the 1800s I believe. There was many mine shafts still present and accessible at the site but I decided not to explore them. (Too creepy!). We arrived at the site at 1:00pm and spent the next three hours digging into the spoil heaps and splitting rocks. We came out with many beautiful examples of graptolites. Unlike Bendigo which has red graptolites, the graptolites at Bullengarook were the typical white carbon colour. Hope everyone enjoyed, Daniel
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SE Minnesota, USA Ordovician Galena Formation I'm sorry I do not have a better pic but it went home with the guy who found it. I just hosted a Father's Day hunt and this was found. I would say graptolites but NO SAWTOOTH EDGES! It did not, in the field, to me appear to be crinoid. I have honestly not seen anything like it before. Maybe it is just how it fossilized, but this was a wow to me! He was pretty thrilled! I would be too! :-D Thoughts anyone?
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Hello all! I was lucky enough to spend the afternoon today in the warm-but-not-too-hot sunshine at Mimico Creek in Toronto, ON (Georgian Bay Formation, Upper Ordovician), and I have a couple of things that I'd like you to have a look at: Picture #1: A view of Mimico Creek Pictures #2 and #3: A bivalve and a possible graptolite - what do you think? Pictures #4 and #5: An ichnofossil - do you think it could be Cruziana, or is it something else? Thanks so much for your help!!! Monica
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Graptolite collected from Spring Gully, Bendigo, Victoria. Believe it is P. typhus but not sure. P. anna maybe?
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Graptolite collected from Spring Gully, Bendigo, Victoria.
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The thecae are more closely packed and shorter than in the similar Paradelograptus. Useful paper, with graptolite illustrations (Fig. 5), here: The Lower Ordovician Fezouata Konservat-Lagerstätte from Morocco
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This rather tasty, large graptolite just arrived after a surprise auction win. It's labelled Clonograptus rigidus Hall which seems reasonable though I'm always being caught out by these. The location is given as 25km north of Zagora (should be OK?) but the age is given as Floian stage when I'm pretty sure it should be Tremadocian, probably Murrayi Zone. ( @Spongy Joe - I guess you've seen a lot like this... )
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Multi-branched graptolite, Morocco Ordovician, Paradelograptus tenuis
TqB posted a topic in Member Collections
After missing out on a superb one of these when the bidding went a bit crazy, I was pleased to pick this up for very much less . The plate contains a large piece of Paradelograptus tenuis, mixed up with broken bits of the same and also Kiaerograptus. Lower Ordovician, Fezouata Formation, Zagora region, Morocco. (I think the seller's ID is OK - graptolites can be very tricky and I haven't checked it in depth but it matches one (fig 5B) in this paper on Reseachgate: Ordovician Fezouata) I've roughly photoshopped it in photo 2 to show the single specimen and added a mirror image in photo 3 to reconstruct its other half (which was present in the one I couldn't afford - I wonder if anyone here has it? ). Other graptolites brushed out: Doubled up:
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Here's a mystery fossil from the Lower Ordovician Fillmore Formation of Utah. My initial impression is it must be a graptolite, but I've never seen any graptolites from this formation with this structure and I can't find any graptolites in my research that look like this. The other thing that's throwing me off is the "rod" running down the middle is preserved actually fairly 3d where every graptolite I've seen is preserved as just a flat film. For reference the specimen is about 2" tall including the middle section still covered in matrix. Any ideas?
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