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Showing results for tags 'Cephalopod'.
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Yesterday I finally made it out to one of my favorite hunting spots after (almost exactly) a year away. This road cut in La Salle County Illinois had been visited earlier this year (I believe) by @Nimravis, @aek and @connorp, but I really wanted a crack at it before summer fully kicked in. As I had been warned, it was already heavily overgrown, with poison ivy located intermittently across the slope. There were also mosquitoes in the shady areas and wasps in the sunny ones. However, with some delicate maneuvering I was able to avoid most of the hazards, with only some mosquito bites to show for it. I was at the site from 11:30 to 5:30 and the sun shone bright nearly the entire time, although thankfully an occasional breeze kicked up and cooled things off. Here is a sequence of the path up to the head wall, as you can see it quite brushy at the base of the cut. All in all, I would call it a successful day. I was able to find quite a few interesting mollusks, both gastropod, cephalopod, and bivalve, that I had not encountered before from this site, and a few trilobite bits as well. The real reason I keep coming back to this location, however, is the high-quality and diverse chondrichthyan fauna found here, and it did not disappoint. In addition to many tiny shark bits which may or may not prove to be worth prepping, I found a few larger specimens which I am hoping are all or mostly complete. The trip-maker was this beautiful Deltoptychius: I also shared the site for part of the afternoon with @TheSandStorm, who was making his first visit to the locale- it was a pleasure meeting him. I love seeing new folks getting out to explore and discover the wonders of the fossil world! I will share more pictures of my finds in the next post.
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Hi everyone! I just got back from a trip to Penn Dixie Fossil Park near Buffalo, New York, and found some pyritized cephalopod fossils. Penn Dixie has rocks form the Givetian of the Devonian from the Hamilton Group. A young ammonoid is easily identified as Tornoceras uniangulare, but the other orthoconic fossils are harder to ID. I am pretty sure the small but more complete one is a Bactrites, because the siphuncle appears to be almost ventral, the distance between the septa, and the slightly slanted suture (after looking at Ludwigia's). The preserved shell is very smooth and couldn't be from a Spyroceras that are also found at Penn Dixie. Similar fossils to mine are pictured on their website, unidentified. If any more pictures are needed, I will try to take them. I wanted some expert advice before concluding it is a Bactrites. Can anyone help?
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Found this fossil in an agate of unknown age from a gravel pit ...
SilurianSalamander posted a topic in Fossil ID
I think it looks shockingly similar to charnia. Maybe a cephalopod, snail, or plant? What could it be?
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What is the stratigraphic and paleogeographic range of Whitfieldoceras?
siteseer posted a topic in Questions & Answers
One of my friends has a Whitfieldoceras specimen from the Ordovician of Wisconsin. He asked me if I knew anything more about it. I didn't and didn't see much online. Does it have a record outside the Ordovician? Is it found elsewhere in the U.S./the world? I have the same question about Beloitoceras. He has one of those from the same site. I think I have one from a Minnesota site somewhere but couldn't find it. Is it known from elsewhere and did it survive beyond the Ordovician? Thanks, Jess -
From the album: Westphalian cretaceous fossils
In southern munsterland basin it is sometimes possible to dig in cenomanian sediments. Fossils are rare, but sometimes real beauties like this fine, 4 cm "big" Nautiloide Pseudocenoceras-
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Hi guys, I bought this ammonite at antique store, It measures 25 CM. Could anyone help me ID the fossil? Baja California, México. It could be pachydiscus? Thank you! Best regards!
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Went on a little "Easter Egg Hunt" with my folks, found some excellent fossils. day was hot but I enjoyed it. I have provided my best ID, but please feel free to correct if you can identify it further! it helps with my labeling system for sure. this lizard was good luck right next to where my mom was standing i noticed this beauty sticking out of the rock further excavation revealed this possible horn coral? eldredgeops rana heads trilobite glabellar fold ( possibly Odontocephalus?) Dipleura rib impression (Very exciting to have found 3 species in one trip!) amonoid Cephalopod Agoniatites vaxunemi (note the preservation of the sutre lines). and here is a conularid i found as well Possible pelecypod? brachiopods and lastly a couple of crinoid buttons dug out of the rock
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From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022 The fossil offers a bit of an interior view of the cephalopod.© Camille Martin
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Hello, would appreciate help with a fossil ID. Location found - Fergus Falls, MN. All rock pieces are from one larger piece that I broke apart. I removed some matrix with a Dremel tool to reveal more detail, but the "body" of these creatures were left untouched and are smooth in texture. The first six images of larger specimen has unique features on both sides. The smaller additional specimen along with the separate unfinished rocks seem to be the same creature, just more of them.
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What is white deposit on this orthoconic cephalopod? Should I attempt to remove it?
Rogue Embryo posted a topic in Fossil Preparation
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This is from Duck Creek formation in Tarrant county, not familiar with fossils from there so not sure what this is, looks very similar to a bacculite to me except for ridge running the length of it. Half cm long.
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Example of soft body preservation and earlier evolution of octopuses
Ossicle posted a topic in Fossil News
This is about a 330 mya vampyropod, with soft body preservation, and an ancestor of octopuses. LINK TO ARTICLE- 3 replies
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From the album: Mahantango Formation
Spyroceras-
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It took some time, but thanks to Covid-19 (!! - see acknowledgements) its out now: A Systematic Study of upper Silurian (Ludfordian) Nautiloid Cephalopods from the Eggenfeld Section (Graz Palaeozoic, Styria, Austria) (pdf, external site) Here is my last visit to that site: Visiting some of the oldest fossils of Styria, Austria (Silurian orthocerids and brachiopods) - Fossil Hunting Trips - The Fossil Forum Best of all, some of my former specimens are pictured in that paper, especially some polished sections (see acknowledgements). Franz Bernhard- 9 replies
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Oxford clay, Peterborough Member, Jurassic, Callovian, Whittlesey in Cambridgeshire I collected this a few years ago, and I'm unclear whether it's a large cephalopod hook, or part of a fish, or something else entirely. Any assistance would be greatly appreciated.
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Looking for some info on this specimen from Eastern MO. Is this perhaps some sort of cephalopod impression partially replaced by calcite crystals? Thanks!
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Hi folks! I’m kind of stuck on this one. I presume this is a gastropod and not a cephalopod because of its small size (diameter around 2 cm). But what order, family, genus and species? Its found at Mt Billingen in Sweden, in a layer from middle Ordovician (middle to upper Darriwilian).
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Hi everyone! I was going through my Swatara Gap fossils when I came across this specimen, which I had originally thought to be coral. However, it looks similar to pictures of Spyroceras I've seen. Can anyone help? The first picture shows the texture, the second picture is a cross section, and the third picture is an imprint on the other side of the rock that looks cephalopody.
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From the album: Delaware Fossils
Belemnitella americana showing internal molds. Upper Cretaceous Mt. Laurel Formation Delaware, USA It's not often one finds an internal mold of the guard where the internal texture is clearly visible. Although internal molds of other animals are common at this locality, any internal molds of belemnites are few and far between. Broken though it is, the lower specimen is one of my favorite belemnites.© c. 2022 Heather JM Siple
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I've been cleaning up a few boxes with devonian fossils from the past few months and came around this nice little fellow. I cleaned him up and gave him a paraloid treatment to preserve the pyrite. It is a complete specimen of a Bactrites sp. from the Matagne shales ( Frasnian, late Devonian ) from Belgium, both phragmocone and body chamber are preserved. They are a little unusual, as the do not belong to the nautiloids as his first appearance might suggest but they have their own subclass and are considered to be the ancestors of the ammonids ( they have a ventral syphuncle like all the ammonoids ) Fragments of them often pop up from the shales, but I rarely find them complete. This one is going in the display cabinets
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From the album: C&D Canal Micro Fossils
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Hi, all. I collected this specimen in the New Point Stone quarry, near Napoleon, Ind. It's Silurian, and was found in the Massie Shale. But I can't seem to find any information about it, specifically, the genus or species. The experts to whom I reached out were stumped. Any ideas, ladies and gentlemen?
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I found this on one of my hash plate, is it what I think it is, a very small cephalopod ?
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I was collecting isorthoceras cephalopods at Graf Iowa (Elgin Member of the Maquoketa Formation, upper Ordovician). I found one partial specimen that in cross-section is about 8-9 times larger than any other I’ve found there. This first pic is from the field. (Don’t worry, the next photos have a scale cube in them!) The large specimen is about 8.9 cm by 5 cm. You can see cross sections of the usual-size isorthoceras in the rock (filled and infilled), and they’re closer to 1 cm across. Unfortunately, the specimen is fairly fragile. I’ve already had to glue together six pieces it fell apart into, and I haven’t been able to remove it from the matrix any further to get a better look at its sides. I’m wondering whether it’s an unusually large isorthoceras or a different animal altogether. Thoughts?
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I found this partial curved cephalopod at the famous cephalopod beds (Maquoketa Fm, Upper Ordovician) at Graf, Iowa last year. It is the only non-Isorthoceras cephalopod I have found from here in my several trips. The only other cephalopod I have seen described from this site is Beloitoceras, but I don't believe that is what my specimen is. Has anyone come across anything similar? Thanks for your thoughts.
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