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  1. Tidgy's Dad

    ADAM'S SILURIAN

    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.
  2. Most people yawn at the mention of graptolites (myself included), but as far as they go these ones are quite cool! We recently set out in search of a site we visited years ago, but had since lost. The site was a roadside in the vicinity of Mt. Canobolas in central western NSW with road base that yielded nice graptolites and one weathered trilobite. On the way to where we thought our original site was, we stopped in at a large roadside quarry with similar looking yellowish shale. After breaking just a couple of rocks we were already finding the same dendroid graptolites as the original spot, so it seemed to be the source of the road base we were looking for. Unfortunately, we only found one trilobite pygidium, they seem to be very rare at this site. Additionally, we found sponges with soft tissue preservation and plentiful large conulariids. The dendroid graptolites from this unit are described here for anyone interested. Photos of some of the graptolites for now, more to come!
  3. I found this specimen in Kenosha, WI on the shores of Lake Michigan in 1969 and have never been able to identify it. The backside contains what I believe to be Dichograptidae graptolites. Has anyone ever seen a similar specimen?
  4. Missourian

    Pennsylvanian Graptolite

    Ok, this one was a surprise. Back in the 90's, I was hammering through limestone looking for productid brachiopods, shark teeth, and whatever, and out popped this: Close up: I had seen pictures of Dictyonema before, but I didn't know they lived into the Pennsylvanian. I then returned to regularly scheduled programming. I haven't seen a graptolite since. (Found in Kansas City, MO)
  5. Hello again, here are another two fossils (or not) that I'm unable to place. They come from llandovery formation locality Hýskov from a shallow sea rich with trilobites, graptolites, brachiopods, bryozoans and crinoids. All other llandovery formation localities in Czech republic are deep sea shales with only graptolite fauna and very few brachiopod species. 1) Hýskov is very rich with beautiful graptolite fauna, like this dendroid Dictyonema graptolites. This fossil (if it is fossil) is preserved in a very much same way as the graptolites, while other fauna there is more plastic. 2) This one is probably a cephalopod of some sort, probably related to Cyrtoceras? However I can't see any segmentation. The white structures are probably only some sort of secondary minerals? Thanks in advance for your opinions Ondrej
  6. Hi all, I haven’t been here in a while, but I still wanted to share some fantastic finds from this summer. As soon as I returned from Newfoundland, I hit the ground running, and now I finally have a chance to relax with a hectic semester coming to a close. For some background, my undergraduate thesis looks at the structures and stratigraphy of a small peninsula off the western coast of Newfoundland called Cow Head. On our long trek up there, we stopped at Green Point, a global geologic benchmark for the boundary between the Cambrian and Ordovician. The geologic features here were unmatched. After our time in Green Point, we drove to Cow Head and quickly began conducting our research. Part of the fieldwork on the stratigraphy side included fossil hunting. Cow Head was full of different fossils, including graptolites, brachiopods, gastropods, and even trilobites. Unfortunately, like the trilobites in Pennsylvania, these too have eluded me. I did, however, find a copious amount of graptolites and even two gastropods! The graptolites included species such as Monograptus, Didymograptus, Phyllograptus, and the Dictyonema. There was none more important than the Tetragraptus Approximatus. This little guy is Floian in age, found within the Ordovician Period, and you can only see this fossil in Ordovician rocks. This made finding it crucial because the Cambrian/Ordovician boundary has been questionable on the peninsula for quite some time. If we saw Tetragraptus, we knew precisely what age of rock we were working in and could even possibly pinpoint the contact with further interpretation of other data collected. (Tetragraptus is the guy that looks like " >< " it is a little small, so you'll have to bare with me) Other fossils found were not nearly as important but just as exciting to discover. A common fossil that we saw often was the Monograptus; fun fact, Monograptus was one of the last stages of graptoloid evolution before their inevitable extinction. Monograptus is known for its single, uniserial stipes with intricate thecae. Another graptolite we saw was the Dictyonema, which can be seen in the image below on the lower portion of the rock. Unfortunately, I wasn’t able to find an outstanding samples of the Dictyonema. Maybe that will be a mini goal when I return this summer. Moving on from the graptolites to the gastropods, there is something exciting about these fossils. At the time of deposition, Cow Head was on the shelf edge of the Iapetus Ocean, which is why we see the laminated shale and limestone beds. Since it was on the shelf edge, there were a lot of clastic flows that produced the conglomerates that we see today. The complicated thing about these gastropods is that they were found within a conglomerate, just like where the trilobites have been seen. That implies that the gastropods and trilobites are not in their original locality of deposition and that they began to fossilize before being deposited in a clastic flow. The left gastropod is a little harder to see than the right one, but they are still impeccable finds on the peninsula nonetheless. We will collect them this upcoming summer and bring them back for further analysis. (Yes, they are still up there. It was a hefty rock in the thick of the peninsula.) I managed to find a nice sample with a bunch of Phyllograptus. The only issue was it was a large sample, and it couldn’t fit in our bags (it was an hour into fieldwork, so we didn’t want to carry it all day), so we broke it up and will be gluing it back together soon. This is what happens when you’re doing a geologic project with three other geologist, and you’re the only one who cares about fossils! The last possible fossil I would like to mention is this (image below, referring to a dark object in the middle of the rock). I am stumped to identify it, I have done reading and haven’t been able to figure it out, and I don’t even know what we did with it! I will have to check my lab as soon as possible because I forgot this guy existed. I would love to get the dimensions to anyone who may have an idea… if it is even a fossil. Any insight is greatly appreciated! The figure below is a diagram showcasing all the graptolites that can be seen in the area. It is difficult to capture a good enough image, so diagrams are very helpful for untrained eyes. Those were all the fossils I managed to find during my time on Cow Head. There is still a long way to go with my thesis work, so if anyone is interested in how it’s going, please reach out! I would love to discuss it with anyone interested! I will be returning to Cow Head and exploring more of Newfoundland this upcoming summer, there are some remarkable fossils to be seen, and I am super excited to share them with you! Thank you for taking the time to read this hefty post, I hope you enjoyed it! I have one more planned for my time out in North Dakota and that’ll be the end of my novels as posts. Happy Fossil Hunting, Dawson
  7. minnbuckeye

    Graptolite?

    Locally, graptolites are very common in the Maquoketa/ Ordovician rock. They present themselves as 2 dimensional creatures on certain bedding planes. Below the Maquoketa is our Galena. It has graptolites but uncommon. Again, they present themselves as 2 dimensional. The "unknown" specimen from the Galena, presented today, is obviously 3 dimensional and I venture a guess that it is a Graptolite. But I thought I would seek opinions in that I have seen thousands of local graptolites but never one that is 3 dimensional. Could it be something else??
  8. Alexthefossilfinder

    Graptolite or lucky scratch?

    Here's a rock I found on my trip yesterday. The texture looks like just another scratch, but the shaping of it likes too precise and symmetrical to be a coincidence. Is it actually something or am I seeing things?
  9. Tales From the Shale

    Graptolite Preservation

    These are graptolites I dug out of an Athens Shale outcrop. They're fragile, so I am questioning whether it is better to leave them be, or seal them somehow? And if so, the best substance to get the job done. Thanks in advance. I have trilobites in shale too, so im hoping I can extrapolate from the answer here.
  10. At the end of August this year I travelled to Larvik in southern Norway to visit "Norges stein og mineralmesse". On my drive from Nässjö in Småland to Strömstad in Bohuslän i took a short detour to visit Taberg. Taberg is a huge iron ore mountain consisting of Titanomagnetite-Ovlivinite which is only found in Taberg, Sweden and Rhode island, U.S.A. The ore body was created 1.2 billion years ago and has survived both a number of ice ages as well as several attempts of mining. Today the mountain is protected by law and during winter the old mine shafts house hundreds of bats. Being Smålands fifth highest peak it makes for a great view of lake Vättern. Further up north I made a short stop at Femstenaberg. This rest area is found just before the exit to Skee and is only accessible if travelling north on the E6 towards Oslo. Right next to the toilets are the subfossil remains of a Balaena mysticetus that was found 72 metres above today's sea level, during the construction of the new E6 highway. The remains are dated through the C14 method to be around 14000 years old. Subfossil vertebrates are quite rare in Sweden, as far as i know you won't find one exhibited outside of a museum anywhere in Sweden except here. As the day was nearing its end I took the ferry from Strömstad to Sandefjord and got to enjoy the sun setting over the Oslo fields Syenites and Monzonites.
  11. This past weekend I had to cancel a collecting trip due to ominous weather, so I instead made an impromptu trip to northern Kentucky to do some Ordovician collecting for a couple days. I really love this area and would spend a week down there if I could. This trip I decided to focus on the Kope and Fairview formations, two of the older formations in the greater Cincinnati area. The first day was mostly driving and not much collecting due to rain. But I did briefly stop at a spot where I found a pocket of Ectenocrinus crinoids on my last trip. I checked to see if any more had weathered out and found a few small calyxes. I also collected a neat trace fossil and a small brachiopod plate (Zygospira modesta maybe?).
  12. I’m probably getting close to my question limit for today, yet I can’t stop thinking about the pattern on the rocks. Are they trace fossils or just pretty iron staining? I’m headed back to where I collected these (Crane Hill, AL) tomorrow & it would be nice to be able to explain to my nieces. I was thinking about Graptolites, though I can’t match up the patterns to those I see in my books. Google search of pic 1/2 pulls up Stromatolites. Pic 3 is the back of pic 1/2 pic 4 includes more examples Thanks for looking.
  13. From the Atrasado Formation in San Diego Canyon, New Mexico. Took a couple of younger friends fossil hunting, and we found a good bed. This one's a real beauty. My photographic equipment is primitive and doesn't do it justice. Graptolites and something else. Not sure what the circular structures are; I don't have the equipment for proper microphotography. There is a very clear echinoderm plate elsewhere in the sample so I'm wondering if these are some kind of echinoderm. They're very clear under the loupe and obviously fossils, not sedimentary structures. Bryozoans. This particular bed was thick with the stem bryozoans in the second photograph, as well as scads of brachiopods and a few crinoid stems.
  14. kgbudge

    Graptolites, or something else?

    A fossil buddy sent me these photos. His thought was trace fossils, but looking more closely, it seems to me these might be graptolites. I confess I've mostly hunted in beds well past the geological peak of graptolites and are not as familiar as I might like.
  15. Is this a graptolite ? It's my first one.........maybe
  16. Imagine working for a year in a small college science department and there was a room you vaguely knew was there but didn’t have the keys to and never saw anyone going in or out. Then one day, campus grounds workers open the door, and you inquire what is going on. You discover it is an old earth science storage room (earth science hadn’t been taught there in many years) and everything is to be discarded the next day into the dumpster to make room for some new purpose. It’s a room about 15 feet by 20feet packed with boxes on shelves filling the space up to the ceiling. It is a dusty disordered mess. You don’t have the authority to put off the clean out. What would you do? Exactly, cancel all plans and stay up all night sorting out the room and triaging the best stuff. So that’s what I did. Not heroic like running into a burning building to save children, but someone had to do it. Even with several trips I could only take a small percentage of the material but most of the fossils. Most were labeled, some had numbers on them but there was no accompanying key, and many had no identification at all. Perhaps 2% of the material was fossils, and it was scattered throughout the room, like some sinister easter egg hunt with every minute ticking down until the morning workers showed up. Here then, are some of the unlabeled and unidentified fossils I recovered. Some are obvious, others less so. I thought TFF members might have some fun with this. # 1
  17. PaleoOrdo

    Nautiloid or graptolite?

    I wonder if this fossile in a shale is a graptolite or a nautiloid. The length is about 3cm, age middle ordovician, in the Elnes formation. The place has many graptolites. Pict. 1 Pict. 2 I also found this 1,5 cm long specimen, which seems to be a nautiloid?
  18. Dimitar

    Solved: Graptolite

    Hello guys! Initially I was thinking about roots of some plants, then I realized there are no plants during this time period. It's Ordovician. Found between Montreal and Laval, Lac du Preries. Could this be Hallucigenia ? N.2 N.4 N.6 N.7 N.8
  19. rew

    What graptolite is this?

    This graptolite is of Silurian age and is from the Rochester Shale, near Buffalo, NY. I hope someone knowledgeable about Paleozoic sea floor bric-a-brac can tell me what species this is. The main cucumber shaped colony is about 12 cm long. I'm guessing that this is in the genus Dictyonema, maybe Dictyonema crassibasale. but I'm no expert on this.
  20. connorp

    Possible Ordovician Graptolite?

    I found this small specimen in the Platteville Formation (Middle Ordovician) in Wisconsin. My first reaction was that it might be a graptolite fragment, especially as it looks to be preserved as a carbonaceous impression. However, I would appreciate a second opinion. Thanks!
  21. James Ryan

    Graptolite from Texas Pennsylvanian

    Yesterday I hunted for about 6 hours in Breckenridge Texas on my way back to Lubbock. Although I found no trilobites, I’m certainly glad I went. I found this graptolite and was wondering if anyone could help with further identifying, identified as graptolite because of the small “hieroglyphics” on the shell. Love this thing!!
  22. Noah Loiselle

    Graptolite fossil

    Hello all. I was wondering if anyone would perhaps known enough about graptolites to possibly be able to tell me a little bit more about the specimen pictured (if the picture allows, what species perhaps)? I found it years ago when collecting fossils on Manitoulin Island (about 1.30h from where I live in Northern Ontario) if this helps at all.
  23. I enjoyed an autumn drive through the rusty-red-colored oak forests that blanket the scenic mountains of northeast West Virginia. Two inactive quarries enticed me to prospect a bit. In the first quarry of Ordovician age shaly limestone was this graptolites plate .... perhaps Climacograptus? In the second quarry of early Devonian age massive limestone was this crinoid column base with the attached holdfast. Both specimen photos are as found.
  24. I was recently reorganizing my fossil collection and thought I would share some pieces I collected during Paleontology field trips in undergrad at Alabama. I'm glad I took thorough notes at the time! The demopolis chalk is a popular formation for finding Exogyra/ostrea/pycnodonte shells and shark teeth. We visited a site in Tupelo, MS many times for surface collecting. Some of the cool pieces I found were many fragments of a mosasaur jaw (top pic, top 2 slots), a Squalicorax kaupi tooth, a scyliorhinus(?) tooth, bony fish vertebrae, and bony fish teeth. I was told the dark fossils at the right of the third picture might be ray plates, but I'm not sure. Turritella in pic 1 are from a different formation.
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