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Showing results for tags 'Nautiloid'.
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Found in Southeast Kentucky, Laurel County.
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From the album: Missouri Ammonoids, Nautiloids and Gastropods
Found this beautiful specimen the other day while searching in the rock pile attributed to the Iola Formation. More specifically, this one was most likely found in the Paola limestone member.- 3 comments
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- cephalopod
- cephalopods
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I had to stop by a work clients construction site today (he builds houses), a mere 3-4 miles from where I live. They had just dug trenches for the waterlines, so I glanced around..Lo and behold, I found the biggest Cymatoceras nautiloid I’ve ever found. Fat Albert must have eaten everything else on the surrounding acre, because I barely found anything else..LOL! I was pretty thrilled. It’s over 11.5 pounds. A friend asked me if it was an Eopachydiscus..nope, it’s a Tarrant county Grayson formation nautiloid!
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- big fossil
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From the album: Lower Carboniferous fossils of Ireland
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I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
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- acanthopyge
- acanthopyge contusa
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From the album: Lower Carboniferous fossils of Ireland
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From the album: Lower Carboniferous fossils of Ireland
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Here’s the before and after with the nautiloid that realized was crystallized inside, so I decided to slice it. The polishing process made a difference in bringing out the features inside. I’m not sure if this came from the Fort Worth formation (I think it is) or Grayson. Johnson County TX. Cymatoceras sp. outdoor pics are before polishing (I’m not sure if it shows up in order of my upload, doesn’t look like it initially).
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- crystalized
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From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
I previously posted my woodbine ammonite collection (calycoceras/conlinoceras). I’ve since sliced 2-3 that were without hope of reflecting external beauty, for lack of a better description as to why. Haha..I find a lot of nautiloids where I live due to proximity to Fort Worth/Grayson formations. Oftentimes, the spots that have mortoniceras ammonites also have occasional nautiloids. I exposed a small amount of crystallization while removing this nautilus, so I experimented with slicing this one. I’m glad I did! What a beauty. I have plenty of whole specimens (some QUITE large) that will stay whole, but this one is unique!
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- cymatoceras
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Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much!
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Mortoniceras+macraster near Downtown Fort Worth
Shaun-DFW Fossils posted a topic in Fossil Hunting Trips
My favorite “homeless creek” with all of its dangers (I’ve been pursued by a guy with a rifle, watched suspected drug dealers meeting, etc) yields the biggest and best macrasters and clean mortoniceras ammonites, rarely do I have to bust out the hammer and chisel. It doesn’t hurt to have a concealed carry permit..I’m looking for fossils, not to become a candidate for fossilization personally. Occasional nautiloids too. Here are a few lunch break finds from yesterday. This is near downtown Fort Worth TX. Still the Wild West! The denture clam/devils toenail brownie (lol) was interesting to me.
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Psittacosaur9's Cabinet Renovation Fossil Identification - Palaeozoic Thread
Psittacosaur9 posted a topic in Fossil ID
Hello everyone! Hope you have all had a good day. I have just finished a long day of work; clearing out my old display case and bookcase, photographing my specimens, carrying my new cabinet and bookcase up from the garage. Now, I am going to post some photographs of Palaeozoic fossils I would like identification of. I will send the other fossil photos later. For any of these I would like the most specific identification possible, as I am creating labels for my fossil display. Sorry if the lighting is poor. If any of you want them, I can take more photos tomorrow. Specimen 1: Calymenid I obtained this Calymenid Trilobite from a museum. I do not know the location, although due to the large volume of commercially available fossils from the country I would suspect Morocco. I initially believed it to be a specimen of Calymene celebra, due to the shape of the cephalon and the bulging eyes, but found out that in Morocco the closely related Felxicalymene is more common. Are there any noticeable distinguishing features between different types of Calymenids one of you or I could identify on the fossil specimen? If anyone has a guide, it would be very helpful. Specimen 2: Goniatite I obtained this Goniatite from a museum. Seeing as the museum described it as coming from the Jurassic, I wanted to double check their identification, as Gonitaites were only present in the Palaeozoic, and after cross-referencing the specimen with online images, I am pretty sure it is a Goniatite. The museum's labels stated the specimen came from Madagascar, but the fossil seems to be most similar to Goniatites from Morocco. What are all of your opinions on the fossil's identity? Specimen 3: Orthocone I do not remember where I obtained this Orthocone from, but I do know it came from Morocco and that I bought it as 'Orthoceras. However, the exact taxonomy of Moroccan Orthocones seem to be in a bit of a mess, as Orthoceras was a wastebasket taxon, and is now considered to only be found in Europe. Different sources have identified Moroccan Orthocones such as this one as 'Arionoceras' or 'Orthocycloceras' (the latter name in particular was used in the 2021 DK Fossil Handbook). Which one would be the more appropriate name? Or is another name more valid? Thank you all for your support! Tomorrow, when I find the time, I will post some Mesozoic and Cenozoic animal fossils, Triassic plant fossils and some fossils I am concerned might be fake.
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From the album: Pennsylvanian fossils
Phylum: Mollusca Class: Cephalopoda Order: Nautilida Family: Tainoceratidae Genus: Metacoceras?-
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- cephalopod
- deer creek formation
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Hello all. I have these two ammonite halves in my and they are two different specimens, Can anyone confirm the are authentic. The one with blue background looks normal but the other looks odd and I'm concerned they are fake. Thank you
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Hey everyone, I wanted to show this fossil I found back in November as I think it's pretty cool. On my first trip that involved splitting shale, I found this Triarthrus cephalon, which is cool on it's own but it was only later that I looked back to it and realized the particular shape that resides on top of and below the cephalon. This trilobite appears to have been buried with the shell of a nautiloid! Please excuse if it's hard to see, the first few pictures were really difficult to get and my phone isn't the best at taking close up shots as it is. The 1st and second pictures represent the two halves of the piece, while the 3rd and 4th pictures are the same thing with a rough tracing of where the shell is. The 5th picture is an older picture I came across while making this post that while blurry shows the shaping somewhat decently. So yeah, there's a pretty cool find in my collection, I don't know how rare this kind of thing is or how they ended up together but I think it's really fascinating anyway!
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Took advantage of the great weather yesterday to drive over to Western Maryland to explore some well-known sites for the first time and had a successful day! Our first stop was at an apparent Late Devonian locality outside of Flintstone where we found nothing except an interesting trackway, which I believe is Pteridichnites biseriatus, made by a brittle star. Otherwise we found absolutely no fossiliferous rock at the site, which is Locality 33 in Fossil Collecting in the Mid-Atlantic States. It's possible the site has been altered/destroyed by roadwork in the ~30 years since the book was written, but if anyone else has given it a try and has had more luck, please let me know! Always possible we were simply in the wrong spot since the directions are bit difficult. Our second stop was a Middle Silurian locality outside of Cumberland, MD where we had vastly more success and that also happens to be about as scenic as roadcuts get with the blooming dogwood trees. We found numerous nautiloid fragments, including one fairly massive one that was also very well preserved and that I managed to get out the rock in good shape (it only broke 4 times!). We also found some lovely brachiopods preserved in a silvery black color and a few large, round corals that are well preserved. We only spent about an hour, but will certainly return.
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- mckenzie formation
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Nautiloid Eutrophoceras planoventer Corsicana Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils: Ammonites and Nautiloids
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- corsicana formation
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I found several remains of an orthoconic nautiloid yesterday while hunting in the Drakes Formation. I was showing it to @FossilNerd and he was unsure if it could be from the Ordovician Drakes Formation, or if I found it where the Drakes overlaps with another younger formation. Is there anyone who knows of such a formation or if this is indeed an Ordovician nautiloid? If it is Ordovician, that would most likely make it Endoceras, as this is the only nautiloid that I have found to have some kind of record in this area. The area in particular of the Drakes Formation is the Bardstown Reef. Here's some websites I frequently use to identify things from the Drakes. https://www.mindat.org/paleo_loc.php?id=19139 https://www.uky.edu/KGS/fossils/fossil-kinds-found-in-ky.php
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I found this cephalopod at the Lost Creek spillway site neat Jacksboro Texas. It's from the Finis Shale, Graham Formation, Upper Pennsylvanian. The largest dimension is 16 mm. It seems to be a replacement fossil so no sutures are showing and I don't know of any similar goniatites so that suggests a coiling nautiloid. The only thing I know of with a trapezoidal whorl cross-section like this is a Titanooceras and T. ponderosum has been found there but of course they are huge so it would have to be close to the protoconch. There is an off-center ridge going along the venter and the shell thickens greatly at the ventrolateral margins. I can check for any other features that might help with an ID. edit: It occurred to me that this may not be a cephalopod at all but a gastropod, Amphiscapha subrugosa but I haven't seen one with the ventral ridge. Ventral view Dorsal View
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- cephalopod
- finis shale
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A friend found this fossil and gave it to me as a gift. Found in a deposit west of the Missouri in SD. I've narrowed it down to some sort of Ordovician nautiloid, but haven't been able to find any closer matches. Thanks in advance!
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