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Showing results for tags 'Maine'.
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I return once again to the Forum. Recently I was asked about something which someone on Discord found in Maine. Honestly, I'm not quite sure what to think of it as I'm not entirely familiar with the geology surrounding Maine: What my Discord companion does know is the area which they found it in, right around Caribou by the local river, which appears to be underlain by Silurian strata (based on Rockd) I'd love to get to the bottom of this mystery!
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My wife and I are planning a trip to Vermont, new Hampshire and Maine this fall. Does anyone know where to fossil hunt or somewhere to rock hunt. We love it all? Thank you in advance -
These were found in a boulder used as rip rap along a rail bed here in Maine. I've never seen rock like it exposed in cuts along the route, so it may have been transported some distance. These are old photos, but I've donated the best examples to a local museum (Bates Museum, Hinkley, Maine) and the label on it was destroyed. Unfortunately I can't find the post, but I'm quite sure it was identified as a calcareous algae known from the Ordovician. Can anyone help me identify it so that I can inform the folks at the museum. It's a small museum and they don't really have a paleontologis
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I couldn't quite bring myself to toss this out without checking. Is this something good ? I think it's from the Silurian Hardwood Mountain formation, but honestly I hadn't been treating it as very important.
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Found at low tide on the Maine Coast (an unlikely place to find fossils, apparently). Approximately 3 inches longest side. Looks a bit like the dinosaur bone I've seen from Utah, except there aren't any dinosaur fossils in Maine. Any thoughts are appreciated. Thanks!
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This specimen was from my most recent collecting trip. It is from the Leighton Formation, which is Pridoli, Silurian. It was suggested by @Tidgy's Dad that it is likely a cryptosome, but I was hoping for a third opinion. The following pictures show the specimen. I have already posted some of these pictures, but have added scale (finally). The first two are of the two pieces of the specimen - I refer to the top image as the "external mold" in reference to the Nuculites bivalve next to it, and the second as the "cast". The last is a close up of the "feathery" section on the end.
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I finished this prep of a trilo-cephalon a week ago. I kept forgetting to post it, but I finally remembered today. This is an Acaste zerinae cephalon. It is from Leighton Formation, pre usual. It is missing a small chip of the right eye - I unfortunately didn’t notice its absence till I returned home. It’s a shame, this guy would have been completely whole if I had found it. On the plus side, this guy’s a very nice color in the sun - a kind of bluish. The other trilo-bits - including another cephalon - all were a brownish color. Makes this one a bit more special. The
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Fossil forum, I recently found an interesting fossil. I was thinking coral or bryozoan, but was unable to identify it correctly. It is from the Leighton Fm Maine (again), which is Silurian. Any help would be greatly appreciated. Here are some pictures of it:
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- maine
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I was able to take another trip to the Leighton Formation today! It's been a while since I've been able to visit (months and months), but I've finally been able to. Unfortunately, during the winter the place is completely covered in snow and ice. Not really the best collecting conditions... My last trip there was in August of last year, and the spring has been very busy. Today it was time. It was supposed to be overcast with a chance of rain, but it came out sunny and bright. Absolutely beautiful day out. The collecting was very g
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Silurian ostracod species of the Leighton Formation
Mainefossils posted a topic in Member Collections
In this thread, I hope to share numerous examples of the ostracods of the Leighton Formation. As I identify them to at least genus level, if not species, I hope to post them here. If anyone has a better suggestion for the id, please let me know. First up is a cast of a left valve, female, Hemsiella maccoyianna sulcata. Length is approximately 900 microns. Literature on the subspecies: Copeland, M. J. (1964) Canadian Fossil Ostracoda, Some Silurian Species. Geological Society of Canada 117. https://emrlibrary.gov.yk.ca/gsc/bulletins/117.pdf Martinsson,- 24 replies
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Charred Fossils Provide Clues about Early Terrestrialization
Oxytropidoceras posted a topic in Fossil News
Charred Fossils Provide Clues about Early Terrestrialization Paleobotanist Ian Glasspool investigates wildfires to elucidate Earth’s ancient history, Colby University News Pertica quadrifaria: Maine's State Fossil Yours, Paul H. -
I am really puzzled on this new one, I have explored phyllocarids, trilobites, and many others, and can't seem to find a good match for it. I am not absolutely positive it is a fossil though, just the surface texture and way it prepped makes me think it is. It is from the Leighton Fm, which is Silurian, Pridoli. When I first started prepping this, I was under the impression that this was the internal mold of a Chonetes bastini, which is why I started on it. I soon discovered though that it couldn't be from a brachiopod, and now I am stumped on it. The first specimen is completely
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This morning I split this shale (technically it fell apart on me), and found this interesting little fossil. I was thinking that there was a possibility of it being a phyllocarid valve, but I have never seen one. This also raises a question that I have been wondering - how do you differentiate between a phyllocarid and a bivalve valve when the tail is absent? What raised my suspicions on this specimen are the raised bumps on the external mold and the depressions on the cast. The pictures below are of the specimen. The first shows the cast/internal mold, and the second the externa
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I have a nice little gastropod in my collection, from my most recent trip to the Leighton formation. I am pretty certain that this is a Platyceras sp, such as the one shown in the plate below, figures 23 - 24. Boucot, A. J., Yochelson, E. L. (1966) Paleozoic Gastropoda from the Moose River Synclinorium, Northern Maine. Geological Survey Professional Paper, 503(A). https://pubs.usgs.gov/pp/0503a/report.pdf I do not believe that specimens such as these have been assigned to species as of yet, and would greatly appreciate to hear any
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This is another fossil from the Silurian Leighton Fm, Maine. It is an excellently preserved internal and external mold of a brachiopod. It is similar to the Salopina species that I am constantly finding in this formation, but this brachiopod's valve is more strongly curved, instead of almost flat. It also has less numerous striae, and they almost reach the median process. As well as this, the dental plate is thinner and curves inward more strongly, and the ctenophoridium is wider. Any help on its identification would be greatly appreciated. Here are some pictures of it (internal mold on the le
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I have just finished preparing this nice pair of brachiopods. I am pretty certain that they are of the genus Salopina, but am not totally positive. The genus is marked as one of the most common brachiopods found in the Leighton Fm, as well as being considered a defining characteristic of this formation. Even though they are so common, I really never tire of them. The way these brachiopods were preserved, though, is rather interesting. @DPS Ammonite kindly acquainted me with the fact that these specimens are not internal molds, as I (pretty sillily) first thought. It s
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I check this website from time to time and always learn something new. I am a bedrock geologist for many years - although I had a good training in paleontology, I still have to work hard to try to figure out a fossil. I recently and currently map rocks in northern Maine. The pictures show below are from a recently discovered greenbed basin (probably aged middle-late Early Devonian and deposited in a continental or sea-land transitional environment). My question is what are the dark-colored pieces? They don't look like burrows because they don't occur across layers. They don't look like tracks
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I was packing up to call it a day searching crushed rock out by the old rail siding when I noticed this. Could it be ? The finds there are Ordovician I think.
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This is a another specimen from the Leighton Fm, Maine, Silurian. I uncovered it a while ago, and at first thought that it was a crinoid stem. On second look, though, I realized that the segments on the "stem" were curving inwards, instead of outwards. Furthermore, what I first that was the stem fading into the rock was actually the width and depth decreasing. I am torn between a Tentaculites sp., which is not known specifically from this formation but shows superficial resemblance to this specimen; and a small orthocone nautiloid, which is known from this formation. Any help on its id would b
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I took advantage of a cold day to sneak into the quarry. It's mud season and this road is one that has the potential to be a walk back from. I think it is most likely in the Emsian, Tomhegan formation. There is actually a fairly good representation of typical finds in the shot taken for scale. There appears to be a crinoid stem, or feeding arm near by, but what is the other shape/object ?
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These are more trilobite segments, and one cephalon, from the Leighton Formation, Maine, silurian. I believe them to be the new species of Calymene trilobite that I found earlier, but am unsure. The first pictures are of the first specimen, numbers 1 and 2 being of the cephalon, and the third of a thorax segment that was underneath the cephalon (you can see the edges of it in picture 2): The next pictures are of new specimens. Number one and two are of a cephalon. Unfortunately, I was unaware of its existence until after it came out in multiple piece
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This is my first almost complete internal mold of an orthocone nautiloid. It is from the Leighton Fm, Maine. From the little I can see of the external mold, I believe it to have the same grooves as in the Possible Fossil Coral post, but I am unsure. Help on the general id of it would be greatly appreciated. Here are some pictures of it:
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Chonetes bastini was first described from the Leighton Fm, also called the Pembroke Fm. It is differentiated from other species by the number of spines and its finer more numerous striae. Most specimens are missing the hinge spines. The above pictures show the pedicle valve. A poorly preserved original or cast of the shell exterior is in the left side photo. Some of the exterior of the shell may be missing since there is a horizontal groove above the shell where shell may have once filled it. The right photo shows an exterior impression or mold. Williams, Henry Sha
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Actinopteria bella is a species of bivalve found in the Leighton/Pembroke Fm, and first described by Henry S. Williams. It is differentiated from A. fornicata by less convexity in its shell and a wider beak. It is differentiated from A. dispar by its shorter shell. The above pictures are of the left valve. A poorly preserved original or cast of the shell exterior is on the left side. Some of the exterior of the shell may be missing since the exterior ribs have less than normal height. The right photo is an exterior impression or mold. Some of the shell may be present on
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This is another fossil from the Leighton Fm, Maine. It is an Actinopteria bella, a bivalve that was first described at this formation (here, https://repository.si.edu/bitstream/handle/10088/14399/1/USNMP-45_1985_1913.pdf). I have had multiple specimens of it, but this is the first one that came out in one piece. The pictures below are of the internal and external mold (top to bottom).
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