Search the Community
Showing results for tags 'cephalopod'.
-
Here are just a few of the fossils I find in the Upper Devonian of New York State. The site I found these specimens at is unpublished and unknown to collectors. Some of the rare things I have found - fish skull, phyllocarid, branchiopods, and perfectly preserved cephalopods. The large orthocone is very rare in this formation and I know of only one that was found according to old publications on this unit. I have found fossil logs several feet long that had to stay in the field. I have to pack food, water, tools, and more a 2-3 miles to the location so I'm limited as to how much I can carry back to my truck. Thanks
- 8 replies
-
- 2
-
-
- cephalopod
- devonian
- (and 2 more)
-
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.
- 26 replies
-
- 5
-
-
- cephalopod
- penn
- (and 1 more)
-
I should preface this post by saying that the Paleozoic, marine ecosystems, and invertebrates are not generally my primary expertise, so I apologize if I am wildly off base or asking stupid questions. Sadly, I did not find these specimens myself, and so I do not have any particularly useful information on age or location. They were left in a desk drawer along with a collection of other invertebrate fossils, most (if not all) of which are Paleozoic in age. I have several different specimens of orthocone nautiloids, and I would love to know if anyone can refine that identification further. To make the situation more difficult, the siphuncle is only preserved in one of the specimens so far as I can tell (first set of photos below). For this specimen, the diameter of the nautiloid is ~3.5 cm (depending on exactly where it is measured), the inner diameter visible on top and the diameter of the siphuncle on the bottom are 4 mm, and the outer diameter is 8 mm. Here are the pictures. Thank you in advance for your time and input. Specimen #1: Specimen #2:
-
From the album: Northern's inverts
-
I'm posting this per the suggestion of @Fossildude19 initially I pegged this as a trilobite, until I saw @electricshaman's nautiloid get identified earlier today. Now I'm not sure. Thoughts?
-
Unfortunately I don’t have much useful detail to share with you here. I found this in Illinois at the bottom of a bridge filled with slabs of rock blasted from God-knows-what quarry. It other slabs like it contained fragments of brachiopod shells and calymene trilobites. It is about 4 1/2cm in diameter. My best guess was a jellyfish or something similar; a geologist whom I showed it to agreed, but honestly neither of us were at all confident in our assessment. Thoughts?
- 10 replies
-
- 1
-
-
- cephalopod
- gastropod
- (and 2 more)
-
From the album: james herrmann
In this front left view I wanted to highlight the waving of the kelp. The challenge was to strongly support the heteromorph while still making the sculpture feel like there was movement and a lightness to the work. -
So, I vanished from the forums for several months while dealing with a new career and some health issues. While I spent most of my time focused on being a new teacher, I couldn't break the bug over the winter season. While I did no collecting of my own, I proceeded to spend a ton of money online purchasing additions to my collection. I am pretty proud of my modest, but growing collection and wanted to show off. Where better than on TFF! This is going to take more than a few posts...
-
From the album: Best of 2017 finds - a year in review
A Nautiloid from Nanteui - Deux Sèvres - France - Bajocian - collected in september 2017 -
From the album: Best of 2017 finds - a year in review
A nautiloid from Vic de Chassenay - Burgondy - France - sinemurian - collected in autum 2017 -
Trying to find a definitive identification for this nautiloid? Anyone know of any science-based paper online to refer to the Ma'der region of Morocco during this period of time and the cephalopod fauna? Any info appreciated. Devonian section in the Tafilalt, Ma'der region, Anti-Atlas, Morocco. (Clymenia genus ammonoid? do they get this large and the chamber/whorls are very similar to nautiloids)
-
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!!
-
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.
-
Baby Nautilus Hatching - Monterey Bay Aquarium
Brett Breakin' Rocks posted a topic in Members' News & Diversions
I wasn't sure where to post this, but the video that The Monterey Bay Aquarium posted is fascinating ! Like little time capsules they hatch fully formed. So amazing ..... Cheers, Brett From Youtube: " Do you know what a baby nautilus looks like? Do you want to see what a baby nautilus looks like? Squee! Chambered nautilus are hatching at the Aquarium!! After incubating behind the scenes for over 14 months, the eggs laid by the adults in our Tentacles exhibition are starting to show signs of life! No one has raised a chambered nautilus to adulthood in human care. Our cephalopod aquarists are hard at work styduing the development of these beautiful bobbing babies! " https://nerdist.com/first-ever-video-baby-nautilus-hatching/- 4 replies
-
- 7
-
-
- cephalopod
- chambered nautilus
- (and 1 more)
-
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.
-
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 -
Cephalopods - Mississippian Period - Pseudorthoceras in Matrix.jpg
Dpaul7 posted a gallery image in Member Collections
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 -
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 -
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
-
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.
-
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.
- 6 replies
-
- 1
-
-
- cephalopod
- kansas city
- (and 1 more)
-
Fossil hunting at Humber river in Toronto on OCT.15.2017
Joon posted a topic in Fossil Hunting Trips
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! )
-
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.
-
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?
- 4 replies
-
- 1
-
-
- ammonite
- cephalopod
- (and 1 more)
-
@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...
.thumb.jpg.1c34525dfcb415fc3f369663822d4e43.jpg)
