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Showing results for tags 'bivalves'.
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Anyone know the species or genus of these?
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Goniophora from Geer Road Quarry, Madison County, N.Y.
Jeffrey P posted a gallery image in Member Collections
From the album: Middle Devonian
Goniophora hamiltonensis Paleoheterodont Bivalve Middle Devonian Upper Ludlowville Formation Hamilton Group Geer Road Quarry Eaton, N.Y. -
Detail of assemblage - small bivalves & brachiopods
Rogue Embryo posted a gallery image in Member Collections
From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022© Camille Martin
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Detail of assemblage - small bivalves & brachiopods
Rogue Embryo posted a gallery image in Member Collections
From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022© Camille Martin
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Detail of assemblage - small bivalves & brachiopods
Rogue Embryo posted a gallery image in Member Collections
From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022© Camille Martin
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Detail of assemblage - small bivalves & brachiopods
Rogue Embryo posted a gallery image in Member Collections
From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022© Camille Martin
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From the album: Camille's fossils - Georgian Bay Formation
Field collection by Camille Martin, April 4, 2022© Camille Martin
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Years ago I picked up these fossils in southern Indiana. I began looking them over again recently. I'll explain what I understand about them. Matrix: Ironstone concretions Classified: Carboniferous? Location: Millsport, Jackson County, IN; Muscatatuck River bed I found these fossils below the Rte. 135 bridge over the Muscatatuck River, which runs at the base of a large hill south of the river. As I recall, the rockface of the hill is gray shale. I believe the concretions are washing out of the shale and tumbling into the river. The river runs on or near the ends of glacier worn plains. The glaciers less affected the hilly region to the south. Here is the fossil trace that has always confused me: In the same matrix occurs the following bivalves of various sizes: I've added three pictures of the large bivalve because it is unusually tall compared to most bivalves I've seen. There are fine ribs running from the dorsal to the ventral ends. The concentric ribs are like large wrinkles. Within the concretion that held the large bivalve, I found mirror images of a flattened tube shape. The mirrored look reminds me of plant fossils in Carboniferous rock closer to Terre Haute, IN. I'm grateful for any suggestions or references. Thank you.
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Swarthmore Fossil Hunting Club Visits the Montour Fossil Pit
cabes234 posted a topic in Fossil Hunting Trips
Hello all, yesterday I led a trip to the Montour Fossil Pit with several other Swarthmore students as one last fun thing to do before final season begins and everyone gets consumed by work. We had 5 people in total including myself there and we had quite a good time. Currently I am in the process of receiving images of everyone’s finds and several students want their stuff ID’d so I have a post for that under the proper section to get their questions answered but I thought everyone would enjoy a more general trip-report style post, I will update this post with other people’s finds as they come in. Here are my finds: A coral stem A partial bivalve with both sides preserved. Mediospirifer brachiopod What appears to be a spirifer brachiopod with all the folds well preserved. 2 Chonetes brachiopods, one with a crinoid stem fossil as a bonus. And finally my favorite find of the day, a very very small Greenops pygidium, which was preserved in great detail. Hope you all enjoy these! Caleb
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Clam fossils help calibrate phylogenic calculations
Oxytropidoceras posted a topic in Fossil News
Clam fossils help scientists find errors in evolutionary tree calculations by Louise Lerner, University of Chicago, PhysOrg, Decemebr 2, 2021 Tha paywalled paper is: Nicholas M. A. Crouch et al, Calibrating phylogenies assuming bifurcation or budding alters inferred macroevolutionary dynamics in a densely sampled phylogeny of bivalve families, Proceedings of the Royal Society B: Biological Sciences (2021). DOI: 10.1098/rspb.2021.2178 Yours, Paul H. -
Colorful Cretaceous shells and multiple Inoceramus species (I think) please help with Id's
Lone Hunter posted a topic in Fossil ID
Had a blast last week busting up marl in the creek with Rockwood's help . I was amazed to find a chunky plate filled with beautiful shells in addition to gobs of gastropods in the area and Gryphea. Got thrown off trying to ID by color duh, finally shape of striped ones clicked, flat sides, Inoceramus sp.? The tiny brown one Inoceramus cuvieri? And the little round ones pinnaeformis? The tip is broke off one but they are all the same. Limestone Inoceramus maybe labiatus or sp.? So not sure about Gryphea, 2 are in piece with the big shells and one of them is round, the other right underneath it, last is the big black/silver with both valves. It's hard for me to distinguish some things without finding a good match for comparison. Really enjoyed prepping these and wondering how uncommon it is to find this good preservation? Appreciate any input! Hope pics come out in order.
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I recently took a trip to my hometown, San Antonio, Texas, to visit family whom I hadn't seen since before the pandemic. Ever since I caught the fossil bug last year in Maryland, I've been itching to make it back to Texas to explore. This trip's purpose was to catch up with family, but to do so, naturally, I had to catch them up on my new hobby! Two places were easy to add to my itinerary -- both my Mom and Dad have seasonal creeks in their neighborhoods, which I was able to walk. The creeks in my Mom's neighborhood expose Albian rocks from the Edwards Group. This creek system is pretty extensive, though in my experience, unfortunately, it wasn't very fossiliferous. The best fossil I found was the small Ilymatogyra arietina below, which suggests that there's a Del Rio Formation (Cenomanian) exposure somewhere in this area as well. The other fossils in the creek were infrequently found and of lower quality. I didn't have much luck in my Dad's neighborhood either. The rocks here are from the Austin Chalk, which is Coniacian-Campanian. I found only small bits of shell and some heavily eroded shell conglomerates. I had much better luck visiting a Glen Rose Formation (Albian) site with my mother and sister that required more travel, though wasn't too far away. Here we were able to collect fossil echinoids, including some nice Leptosalenia texana, bivalves, gastropods, algal balls, and foraminifera. We enjoyed it so much that we went back a second time. This site had quite a few modern invertebrates too! At some point, I will plan to take a bigger Texas fossil tour, but I needed to stick closer to San Antonio this time around. With that constraint, I can't thank @Uncle Siphuncle enough for your amazing TFF guide to San Antonio fossils -- I learned so much from your post about the rocks where I used to live!
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These fossils were purchased by me from a friend who had received them 30yrs ago. In the box they were in was a paper that read "Miocene, Calvert Cliffs, MD. Though some have argued that they are Florida fossils...I found id's for all but a couple from: "Vokes, H.E., 1957, Miocene fossils of Maryland: Maryland Geological Survey Bulletin 20, 85 p". I was wondering if anyone could id the two left...the single fossil photos? Thanks Greg
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From the album: Late Jurassic bivalves of European Russia
Moscow, Fili park, Volgian, Nikitini zone -
From the album: Late Jurassic bivalves of European Russia
Upper Oxfordian, Moscow Oblast, Broniitsy -
Bivalve Internal Molds from the Vincentown Formation
Jeffrey P posted a gallery image in Member Collections
From the album: Tertiary
Bivalve Internal Molds (One on the left appears to be Cucullaea) Largest just over 1 inch Paleocene Vincentown Formation Rancocas Creek Vincentown, N.J.-
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Possible Trilobite and Bivalve Fossils found by side of road in Sharon CT.
cabes234 posted a topic in Fossil ID
Two days ago some workmen laid some stone by the side of a road near a pond in Sharon CT and I found two fossils one that appears to be the back of a Trilobite or a Chiton and another that looks to me like scallops or some other bivalve (I know that scallops and trilobites never existed at the same time). Does anyone have any ideas as to what these could be. Also I know this rock is not from where I found it, it was probably sourced from a local quarry so I would have to check with the highway department of Sharon to figure out where these come from.
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The fossils were found in the 70s in northern Sardinia during the excavations for the construction of a road. I do not know the exact location, but I know that it is the north of Sardinia. The coin is 1 euro (it's similar in size to an American quarter.) What could it be? Thanks in advance
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Another trip to 'gold mine', huge Gryphea w/shell, tiny Echinoids, tooth & more
Lone Hunter posted a topic in Fossil ID
Went back to my little gold mine today and was again amazed by the variety of things found. Previously I thought I was in Eagle Ford, but it is in Woodbine, with ravine that cuts down to Grayson as was explained to me in first post from this local. Everything was dried out except bottom of ravine, from the looks of things I think a natural spring is involved. So found some more Mariella ammonites, one with part of a scallop maybe?, and a Hemiaster, another Texigryphaea with some shell, I believe a little bacculite, an Echnodus tooth?, unknown clams, a Trigonia, and crawling on hands and knees on top sandy area found these tiny Echinoids which are so small having a hard time making ID, can't believe they even made it home intact.
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Hello. This is my next mystery. It's been looked at in the precleaned state and dismissed as a cool rock. I beg, to differ and need your thoughts. My reasons for thinking this is a fossil/ fossil impression are as follows: 1) As I cleaned, the left edge (see ladt pick with knife), began to show evidence this is on top of the matrix, not part of it. Likely matrix of shale-chert so please, take that into consideration. Extremely odd charts in my area 2) Looking at the picture with my finger, examine that small white portion. That appears totally different from the rest. 3) I do see a horizontal pattern matching the only other buchia so. I could find online. I've included that picture as well - All copyright remains with the Dr. Richard Paselt per the tag seen in the photo. Thank you for your time. If this is buchia, then it's a glacial find and came to the East Tennessee, Douglas Lake area of the French Broad river, Dandridge Docks, Dandridge, TN by water. That's where I found it. This is supposedly Mid-Ordovician in this area. Tennessee is an extraordinary place and it's State Fossil is a Jurrasic period one.
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Found a little gold mine of Turrilites, Echinoids and bivalves
Lone Hunter posted a topic in Fossil ID
I've driven by this field for years with a big ravine in the distance and decided to check it out since it wasn't fenced or posted and glad I did. The ravine was a good 30-40 yards long, probably 10ft+ at deep end and around 5ft wide, as I got closer the dirt changed to grey clay mud with little vegetation, the surface was sandy and rocky. First thing I saw was the large Echinoid, then peices of what I thought were ammonites until I found a more intact one, then I thought Turritella but didn't quite fit. Had a heck of a time trying to ID them and finally ran across Turrilites, I think that's what they are. I went in shallow end of ravine to grab a few things and ended up with 10lbs of mud stuck to my feet so anything else was retrieved by reaching over edge of ravine. Couldn't tell what half of it was until I got home and washed them off. So here goes my ID efforts, Hemiaster echinoids, a Texigryphaea, the group with clam, and possibly a Trigonia, and what looks like deformed echinoid ? Not sure about the last 2 tiny ones, some kind of bivalves? This is the most fossils I've found in one spot and I'm unfamiliar with some so appreciate any help!
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This little rock is from Eagle Ford, since it was cracked I broke it open to be surprised by all the fossils in it and that I saw shiny things with color. Definitely not what I'm used to seeing! I assuming most of these have original shell, there are gastropods that are different colors, and also bivalves with different color, different sub order? Several heteromorph ammonites I think, and some kind of worm. Curious what the shiny multicolored area is, a couple unknowns, dendrite I think, and last one I'm not sure about, scaphite maybe? Appreciate any help!
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A couple of weeks ago I was in Southern Florida with my wife and my sons family for 8 days. My wife, my 7 year old grandson and your’s truly. During this time I was able to get out and collect fossil Pliocene-Pleistocene shells from the Caloosahatchee Formation. Collecting fossil shells is one of my favorite fossils to collect and I love it when I find complete examples. I have been to the Peace River a couple times, and even stopped there on the way home to take a look at it, it was very shallow, there was a group of people sifting, but I did not partake. I do enjoy collecting fossils from the Peace River, but I would rather collect fossil shells. During this trip I did collect hundreds of fossil shells, but I am only posting a few species of complete fossil bivalves, some of these have predatory drill holes in them. @MikeR hopefully you can let me know how my identification is on the following shells, I tend to mess these up. Eucrassatella speciosa Chione elevata Arcinella cornuta Plicatula marginata Carditamera floridana Same as above- Noetia ponderosa macnelli Lucina pensylyancia Solecurtus cumingianus Arca wagneriana Dosinia elegans
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This all started over a year ago. I was selected as Member of the Month and a couple of TFF members from Texas invited me down to the big state to collect. I primarily collect in my home region, the northeast, but I've taken fossil forays to New Mexico, Kentucky, and Germany and was willing to consider a trip to Texas and the opportunity to visit some classic fossil sites and collect fossils that are outside my usual focus. I began planning this about ten months ago, contacted potential fossil collecting partners and did my own research on fossil sites, geology, and the types of fossils I would likely encounter. I had never been to Texas let alone fossil collected there. From the Forum I knew there was a lot of great hunting. Then there was all of the logistics, what to stay, what to bring. Since I wanted to bring back a lot driving appeared to be my best option, but I hadn't driven that far solo in over thirty years. Timing of my trip; mid-late September, came right after my daughter went away to college and I was in the middle of moving to a new place. So things couldn't have been more hectic. Finally, early in the morning on September 8th I set out. Things went okay until I was in Kentucky. Just as it was turning nightfall, torrential rain hit, traffic was stopped on the interstate for two and a half hours, and the last two hours of the trip I struggled with wet conditions and poor visibility. I finally arrived at my parents' house just after one in the morning. The next day on my way over to my sister's I took a small detour and stopped at an outcrop I was well familiar with in Leitchfield, the Upper Mississippian Glen Dean Formation.
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I am wondering what fossils you can see in these rocks. they are all carboniferous limestone (prehaps not the red/brown one). I can see Bivalves, coral, crinoids, brachiopods (I think), And nothing else. Why aren't there other carboniferous life. (I understand soft parts go) These rocks are packed with fossils, what can a real paleotologist see?
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