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Found 210 results

  1. Ordovician Cephalopod mystery

    I have found a straight shelled Cephalopod in the ordovician of Russia. Middle ordovician asery level of the Leningrad area. Its different from the usual cephalopods found there. The septa are closely spaced and the siphuncle is small and close to one side of the couch. (Not the centre) From what I can tell it's neither orthoceras nor endoceras. The shell has ribbing on the bodychamber it which is also atypical. I would really appreciate any further insight!!
  2. Cephalopod Shell Color!

    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, but also inferred. I Hope you will appreciate my work!
  3. Cen Tex Cephalopod

    I found this a couple weeks ago the same day as the Petalodus that I already posted. It was in Brown County near Lake Brownwood in the Penn deposits. These are pretty common around here but usually about half this long or smaller. Found this before to much of it had eroded away.
  4. Pseudorthoceras???

    I am again going through thing that I have in my collection and came across this little thing and I am thinking that it may be a Pennsylvanian cephalopod, maybe Pseudorthoceras. I do not know the location that it came from and I am guessing that it is Pennsylvanian. Any help would be appreciated.
  5. I'm curious how one can determine whether a cephalopod fossil is an adult or juvenile? I seem to recall hearing from somewhere that if there is a double suture line in the middle of the phragmocone indicates it is an adult. Here are three Beloitoceras specimens I found at different localities. The specimen in the middle has double suture rings. Thanks for any insight.
  6. Ammonite - unidentified.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Ammonite Fossil Location: Unknown, possibly Morocco Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs). The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder (d. 79 AD near Pompeii) called fossils of these animals ammonis cornua ("horns of Ammon") because the Egyptian god Ammon (Amun) was typically depicted wearing ram's horns. Often the name of an ammonite genus ends in -ceras, which is Greek for "horn". Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida
  7. From the album MY FOSSIL Collection - Dpaul7

    Pseudorthoceras Cephalopod in matrix Chesterian Zone of the Bangor Limestone Formation in northern Alabama Mississippian Period (ca 325,000,000 years old) An extinct species of cephalopod. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Orthocerida Family: Pseudorthoceratidae Genus: Pseudorthoceras
  8. Spyroceras in matrix b.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Spyroceras Cephalopod in Matrix Chesterian Zone of the Bangor Limestone Formation in northern Alabama Mississippian Period (ca 325,000,000 years old) Spyroceras is a genus of pseudorthocerids from the Devonian of North America and Europe, defined by Hyatt in 1884. Pseudorthocerids are a kind of orthocertaoid, a taxonomic group within the Nautiloidea. Spyroceras had annulated orthocones with straight transverse sutures, transverse or slightly oblique surface annulations, and faintly cyrtoconic apeces Surface ornamentation varies but longitudinal lirae are conspicuous from earliest stage. The siphuncle was central or slightly offset ventrally, and composed of expanded segments typical of the Pseudorthocerida. Cameral and siphonal deposits developed later than in most pseudorthocerids and are thus confined to the apical portion of the phragmocone. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Pseudorthocerida Family: Spyroceratidae Genus: Spyroceras
  9. Iowa Quarry

    Last Sunday I had the opportunity to travel to East Central Iowa to collect Devonian fossils. It was a nice foggy morning drive to the quarry. Upon approaching the quarry, there was a house burning down- a odd, surreal scene. At the bottom of the quarry could smell the smoke from the house. No pics of the quarry were permitted which is too bad as it is a geologically fascinating place. Devonian Cedar Valley formation, lower Solon exposed as well as Pennsylvanian karsts. Here are a few of my finds. Hexagonaria Trilobites. Eldredgeops peeking out from the rocks Acleistoceras sp And last, but not least, this nice crystal. Thanks for looking. Cheers
  10. I have always enjoyed collecting cephalopods from SE Minnesota. My favorites are the ones providing a little extra!! Something that occurs quite often. The example presented today was found a week ago. Didn't think much of it until I freed it from its matrix. The upper left was the part exposed. Not too impressive. I debated leaving it. Something told me to free this up and I am glad I did. Here is the pleasant surprise: !!. I assume the hollow nature of cephalopods create a perfect void for crystals to form in. correct me if I am wrong. I will clean the outer surface one day and it will end up being a keeper.
  11. I found this in the Winterset Limestone of the Pennsylvanian system, Kansas City group near Raytown, MO. The matrix was quite oolithic. You may notice from the pictures that I had some trouble reassembling and gluing it after it fell apart, and it may be missing a bit of the small end. It looks to me like an internal mold of an evolutely coiled cephalopod. It is about 2 cm x 1.5 cm. Any ID help will be appreciated.
  12. Hello again!! I visited the southern part of Humber river in Toronto, ON on Oct.15.Sun. Actually, I went there on the way to go to see new homestay(Eventually, I moved elsewhere because of the distance. My ex-landlady urged me to move out 'cause she wanted to give my room to her daughter. The result is better 'cause of food quality. Last one was really terrible). Anyway, the total distance was about 58.6km for round trip(Actually, the distance was about 32km from my last homestay to Humber river. But I took the subway after got to the downtown when I came back to ex-homestay). I went southmost part of Humber river and headed along the upper stream. But, I couldn't find exposed formation, rather I saw just rocks, which is placed on sandbanks. I found ripple marks on the way heading upper stream. After that, I found many brachiopods, gastropods, crinoids' stem, bryozoa, and ichnofossils. But I wanted to find trilobites. That's why I thought that 'this time is wasted and felt really disappoint (and tiredness) So, I was almost giving up to find fossils and just follwed upper stream with taking a closer look on sandbanks. Then, I suddenly saw something on downward inclination! There were some exposed rocks(I'm not sure which formation is)! I went down right away and looked for some fossils. There were also brachiopods, gastropods, crinoids' stem, bryozoa, and ichnofossils. But this time, I found some cephalopods, too! (Though I couldn't make to find even one parts of trilobite) I'm not sure these species are Endoceras sp. or some other thing. Please let me know if you know the name of this specimen. These two attached on big rocks that I couldn't dettach it. The part of shell(phraginocone). The rest part of shell. The whole body image. I hit it in order to make big rock into small pieces and eventually I cracked it.. I yelled and felt really sad. This is another cephalopod. Although I couldn't find any trilobites at this hunting, I found some nice cephalopods and one graptolite(I forgot to take picture. But it's small) I'm planning to go to Mimico creek before I leave for Toronto. Maybe I'll go there after Novemver 12th. (After changing homestay, my Toronto life is getting way better than before! Though my friends are still stay in old place..) I'll post TWO more fossil hunting trip on Brechin and Bowmanville quarry with Crinus(Joe) on last weekends(He took me there! Thank you! )
  13. Epworth, Iowa fossil ID

    I apologize that I didn't take a better picture. I realize that you don't have much to work with but I'm wondering if anyone can help me ID the largest fossil that's visible in this rock. I didn't put anything in for scale. The rock is sitting on a paper towel (not the best reference for size). I believe it is surrounded by straight cephalopods. I was with my cousin when she found this fossil on her private property in Epworth, Iowa. I'd like to know more about this fossil. I am a science teacher and I'd like to share this picture with my class and I'd like to know more about it to answer any questions that may arise. The actual fossil is still in Iowa at my cousin's house. I may be able to have her take additional pics.
  14. Ammonite ID

    I found this fossil kind of out of place at a hobby store and the only identification it had was "Madagascar Ammonite". I know it's no fun that I bought it and didn't dig it up myself but any further information on what kind of ammonite it was and when it lived would be much appreciated. I tried to be as detailed as possible in the picture to make up for the lack of info. Also, what's up with the iridescence? Is it special?
  15. @Raggedy Man and his "phantom" wife, Laura, came up to fossil hunt for her 31st Birthday and what a hunt it was! I was busy the first day they were here with my little Airbnb Whispering Winds checking people in and out but they had a wonderful day hunting and Paul found a Bumastis trilobite - they are trilobite hunters. He will have to post his pictures. :-) On Saturday I had invited new fossil friend, Todd, from the Twin Cities to hunt with us. He had come on a paid hunt earlier (he left with 2 5 gallon pails of fossils that very long fossil hunting day) and we had bonded and this was a good opportunity for him to get some real fossil hunting done. I had heard about the "mythical" Seven Springs down a favorite sometimes dry wash and was on a mission. So off we went to hunt Orodovician fossils and Seven Springs! It was a lovely fall day in Minnesota in the 60s with leaves slowly turning brilliant colors and falling to cover the floor of the wash. The first part of the wash was not particularly fossiliferous but we had perhaps a mile or two to go to Seven Springs, so I was warning Todd not to pick up too many fossils. And yes that big plate was beautiful, but too heavy to carry out - that is what hammers are for... :-) The day was beautiful and each corner drew us around another. Paul and Laura had gone up the wash. And there were plates that just weren't going to come back with us. But the siren's call of more fossils to be found just kept us going... But this worn Fisherite showing the side structure was one I just had to have! We rounded one bend to see wild morning glories blooming against the gleaming white rocks of the Galena Formation. We were back in pretty far and hit a very fossilierous wall. I was on a mission and just had to keep going to find Seven Springs - was it real or not? Todd was happy to be left there. :-) The next corner of the wash called to me, and the next, and the next... I ran across the tracks of a large white tail and knew I must be near water. Finally! The first of Seven Springs! My mission had paid off! Seven Springs! So serene and beautiful! I had dropped my backpack back by Todd and so fossil hunting my way back was only what I could stuff into my fly fishing vest. When I finally got back, Paul and Laura had hiked down the wash to see what the old folks were up too. :-) Continued...
  16. Aturia_Angustata in the sunshine

    From the album Cephalopods

    Aturia Augustata is an Eocene Nautiloid from Lincoln Creek Formation, Grays Harbor County, WA, USA . Sutures (or suture lines) are visible as a series of narrow wavy lines on the surface of the shell, and they appear where each septum contacts the wall of the outer shell. The sutures of the nautiloids are simple in shape, being either straight or slightly curved. This is different from the "zigzag" sutures of the goniatites and the highly complex sutures of the ammonites.
  17. I drove about 4hrs west to find trilobites, came home with cephs. I did happen to find some pretty neat trilobites, but they need prepping, so i won't post them. Hunting more for trilobites this year i come across a lot of other fossils and i find it exceedingly hard to leave a neat looking cephalopod behind, so i grab em. Most of these will be left outside, but some are nice enough for display. Here are some nice ones. I love the contrast and size on this piece. The isotelus cephalon and worm burrows don't hurt either. Continued....
  18. I have recently been contracted by the State of Minnesota to do veterinary work for the Trout Hatcheries in SE Minnesota. Yesterday was involved in visiting two of the three hatcheries that I will be involved with. On the way to the visits, I just had to take a short look at some rock outcroppings and found this nice specimen!! Looking forward to revisiting this site! I always love multiple specimens in a piece of matrix and finding a maclurite snuggled up against a big cephalopod was a first for me.
  19. Belemnite

    B. americana is the Delaware State Fossil. They swam in huge schools and were the base of the food chain in the shallow sea that covered Delaware and New Jersey at the time. This one was found by a surface scan of the loose fossils at the site. They are very common in broken bits and pieces. A whole piece will have a point at the tip and a conically hollow section, the rostrum, at the other end. Whole ones are very rare. This one is nice, however, because it still has its original texture.
  20. Is it possible to ID this cephalopod?

    I got this a few years back in Canaan valley (if memory serves) West Virginia before With a bunch of other fossils. I bought it, as this was before I had learned that you could actually legally hunt fossils yourself (if I had known, that valley would have been scoured for fossils, as its geology is apparently amazing). I assume this was from the area, although this could be incorrect. This one caught my eye because of its curvature, is this the way it was when it was alive or is it just disarticulated septa? Is it possible to get a close ID on this orthocerid?
  21. Cephalopods?

    Hey!! Are these cephalopods? More specifically Dawsonoceras? Found in Vaughn Ontario near a stormwater pond - I have a feeling it's from a local quary since this pond is a man made structure. TIA!!
  22. Orthoceras find

    Hi folks, Rocky again. We had a nice shower this eve., walked the yellow shale plowed area and found these tidbits rinsed off. The longer one is the best orthoceras segment that I've found here so far. Also found the delicate little arrowhead. But as usual, it is broken. This is the first rain since the tilling. I'm hopeful (and confident) that more will pop up after several more rains and another tilling ... or 2. Kind regards.
  23. Fossil ID: cephalopod?

    Hi Can you confirm that this is a cephalopod? if not what is that? Found on the lake Ontario Canada shore - region Mississauga
  24. The ammonite that started it all...

    From the album WhodamanHD's Fossil collection.

    This was the first fossil in my collection, yet the age, formation, species, and place of origin are all unknown to me. I assume it was from Madagascar. Bought for me as a present.
  25. Ordovician Cephalopods

    As I wade through the boxes of fossils I collected as a kid and try to make heads or tails of what everything is, where it was collected, and whether it is worth keeping or giving away, I've hit a road block with cephalopods. It seems cephalopod identification hinges largely on internal features that are not always accessible/preserved. I'm trying to figure out what I can and cannot identify and also what I am trying to look for. I've got two examples below; the smaller one is from Ripley County Indiana and is either from the Liberty or Waynesville Formation (I believe) of the Richmondian stage. Looking at it, I was thinking the small circle visible on both the anterior and posterior end is the siphuncle. If this is true, it looks to be ventral which would make this Cameroceras? Am I on the right track and can I get it down to species possibly? The second, larger fossil is from Franklin County Indiana and is also from either the Waynesville or Liberty Formations of the Richmondian. Based on the shape, it seems like this is an Oncocerid cephalopod and I'm torn between Diestoceras and Beloitoceras. Once again, am I in the right ballpark and can this be narrowed down any more given the condition of the fossils? I'm interesting in learning what features everyone is looking at in identifying cephalopods and what kind of preservation is needed to get to at least the genus level so I can apply the approach my other cephalopod fossils. Thanks for any help you can provide! -Andrew