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Showing results for tags 'nautiloid'.
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From the album: Texas Cretaceous Fossils: Ammonites and Nautiloids
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Nautiloid Eutrophoceras campbelli Walnut Creek Austin Chalk
JamieLynn posted a gallery image in Members Gallery
From the album: Texas Cretaceous Fossils: Ammonites and Nautiloids
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The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
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- pentremitidea archiaci
- cordillera cantabrica
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I'll start with images I've already posted on the forum. All are from the Kansas City metropolitan area. Winterset Limestone.... Metacoceras: Liroceras: Stenodomatoceras: Undetermined: Domatoceras umbilicatum: Wea Shale.... Metacoceras: Westerville Limestone.... Domatoceras: Chanute Shale.... Mooreoceras or Pseudorthoceras:
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- kansas city
- missouri
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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 bo
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From the album: Pennsylvanian fossils
Phylum: Mollusca Class: Cephalopoda Order: Nautilida Family: Tainoceratidae Genus: Metacoceras?-
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- cephalopod
- pennsylvanian
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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 repre
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Nautiloid Eutrophoceras planoventer Corsicana Formation
JamieLynn posted a gallery image in Members Gallery
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From the album: Texas Cretaceous Fossils: Ammonites and Nautiloids
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- texas
- 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 Form
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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
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- pennsylvanian
- texas
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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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Found these in a limestone formation near Bocairent, Spain. From some quick research it seems to me like these might be from the upper devonian, and some look like nautiloids? One of them looks like a coral. Perhaps crinoid also? Would love some help on IDing these if anyone has any ideas!
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Here's a find from last summer. I originally classified this as a nautiloid, though I think it could be a horn coral too. Unfortunately I'm not very familiar with the inner workings of either and I can't see much that could point one way or another. I do think it's a nautiloid judging by how straight it is, but I would appreciate feedback from anyone with more experience.
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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 Skelg
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- leptostophiidae
- eostrophodonta mullochensis
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Hello, Could I get some help identifying these two nautiloid steinkerns? Unfortunately no precise age/locality info on them but I think they might be from the Pennsylvanian or Permian of Kansas or Texas. They are both around 8-9cm wide. 1. 2. Referring to this: http://inyo2.coffeecup.com/kansasfossils/kansasfossils.html I think #1. might be Metacoceras and #2. might be Liroceras. @Missourian I believe you are referenced in that post and you seem to be experienced in this fauna? Thanks
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Hello, found what I think are nautiloids and brachiopods. I found the rock in a stream and I can't say what limestone (maybe brush creek or pine creek), but the area is Glenshaw Formation in northern Allegheny County, Pennsylvania. It's quite difficult for me to get good pictures, let alone good pictures with scale, so I'll tell you that the first two pictures are 2 cm (same organism), the second is 5.5 cm and the largest Nautilus in the last pictures is about 6 cm. All information is appreciated, thanks!
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- nautiloid
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Hello all! Recently I have been obsessed with cephalopods and realized there is a real lack of reconstructions of the color patterns on extinct nautiloids and ammonites! This led me to compile a list of known fossil color patterns on cephalopods. After a year of on and off research, I found about 90 species of cephalopods retaining official or undescribed, original patterning on their shells. These are the first 15 species on my list. The color markings are based both on descriptions and photographs of the fossil material. The shades of the markings are based on the fossils, bu
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Last weekend we made a fieldtrip with the “CGH” ( Cercle geologique du Hainaut ) to the quarry “La Couvinoise” , the quarry happens to be in Couvin :p Here the deposits are middle Devonian: Eifelian and Givetian, so a bit older than the locations we usually prospect. The best part for the fossils are the Eifelian deposits, but sadly those layers are no longer in exploitation. However, due to the drought and the low water level we had access to a small but promising scree pile. Here we found a fragmented nautiloid, but the centre of the specimen seemed to be still in the matrix.
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- nautiloid
- cephalopod
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Here is a reconstruction of the orthocerid Striacoceras typum, eating one of the last surviving Eldredgeops rana trilobites. Two Botryocrinus crinoids wave in the current, and a colony of Pleurodictyum feeds on planctonic organisms.
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- mahantango
- givetian
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I recently bought this on online with no provenance, from a buyer with 1 feedback and some rubbish photos. To be honest I figured either nothing would turn up or itd be concrete, which is what I was hoping for (needed a doorstop) 'Unfortunately', it appears to be real, and now I'm interested. I'd appreciate any input. I've tried to show the shell patterns in some of the photos, as well as other fossils in the matrix base.
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A few weeks ago my brother and I took a weekend trip to do some sightseeing in the Dallas-Fort Worth area. I had been meaning to check out an area of interest in the Late Cretaceous Period, Early Cenomanian Grayson Marl, so early Sunday morning before the museums in Dallas opened I made a quick stop to the site to at least cross it off my list. The outcrop itself was small but I was able to find the usual suspects- Ilymatogyra oysters and Neithea scallops, partial Mariella bosquensis heteromorph ammonites, and a Stoliczkaia conlini ammonite that is sadly missing its juvenile whorls. The real h
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New Identification Posters for Common Hamilton Group Cephalopods
Bringing Fossils to Life posted a topic in General Fossil Discussion
I just made new ID posters for Hamilton Group Cephaloods - one for Nautiloids and Bactritoids, and one for ammonoids. The reconstructions are either new or updated for accuracy. Color patterns on the first picture are based on close relatives. If anyone has any suggestions, please let me know - I want these to be as useful as possible. -
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Impromptu Construction Site Hunt. Grayson Marl and Pawpaw Formation
EPIKLULSXDDDDD posted a topic in Fossil ID
Following a refreshing swim at the lake with a few friends over the weekend, I decided to take a spur-of-the-moment stop at a construction site I happened to be driving by. The sun was setting, cooling the area and finally making it hospitable despite the recent heat wave. I was not familiar with the exact geology of where I was, but with only an hour and a half of daylight left I decided to not waste too much time and immediately began scouring the dirt. I quickly noticed that the ground was composed of two distinct formations. The higher layer was a grey limestone while the layer- 7 replies
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