Jump to content

Search the Community

Showing results for tags 'matrix'.

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. otodus, megalodon, shark tooth, miocene, bone valley formation, usa, florida.
  • Search By Author

Content Type


Forums

  • Fossil Discussion
    • Fossil ID
    • Fossil Hunting Trips
    • General Fossil Discussion
    • Partners in Paleontology - Member Contributions to Science
    • Fossil of the Month
    • Questions & Answers
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Is It Real? How to Recognize Fossil Fabrications
    • Member-to-Member Fossil Trades
    • Fossil News
  • Community News
    • Member Introductions
    • Member of the Month
    • Members' News & Diversions
  • General Category
    • Rocks & Minerals
    • Geology

Categories

  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Blogs

  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Terry Dactyll's Blog
  • Sir Knightia's Blog
  • MaHa's Blog
  • shakinchevy2008's Blog
  • Stratio's Blog
  • ROOKMANDON's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Lindsey's Blog
  • Back of Beyond
  • Ameenah's Blog
  • St. Johns River Shark Teeth/Florida
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • nicciann's Blog
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • barnes' Blog
  • xenacanthus' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • maybe a nest fossil?
  • farfarawy's Blog
  • Microfossil Mania!
  • blogs_blog_99
  • Southern Comfort
  • Emily's MotE Adventure
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • andreas' Blog test
  • fossilman7's Blog
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • Hihimanu Hale
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • Stocksdale's Blog
  • PaleoWilliam's Blog
  • TyrannosaurusRex's Facts
  • The Community Post
  • The Paleo-Tourist
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • A Novice Geologist
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101
  • Books I have enjoyed
  • Ladonia Texas Fossil Park
  • Trip Reports
  • Glendive Montana dinosaur bone Hell’s Creek
  • Test
  • Stratigraphic Succession of Chesapecten

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

  1. Hey everybody! I'm Korey and I'm a bit new here (and to the world of paleontology in general) so I apologize if things might be a little messy. Regardless, I'll try my best in keeping things as crisp as possible. I was hoping I could have some help identifying a few fossils on the exterior of these rocks I found. The following three fossil matrices were collected in a single trip along Cape Fear River in the Wilmington area. Each one contains numerous fossils of a variety of species embedded within a limestone matrix. Mineral composition was confirmed by a professor of paleontology (specialized in microfossils) at UNC Wilmington, meaning they likely originated from the Castle Hayne limestone deposit. I would really appreciate some help in identifying some of the fossils found in these matrices, as while a decent number are somewhat recognizable, there are some that are completely mysterious. Specifically in matrix B and C. Matrix A: Measuring roughly 61mm in length, and 40mm in width, this is a cluster of what appears to be remnants of steinkerns and their remaining impressions. I counted over 10 individual snail shells, the exact number being a bit unclear, and a single bivalve impression. The snails appear to be some form of teribridae, while the nature of the bivalve impression is unknown. The largest snail impression measured at roughly 14mm in width. Length was unfortunately not easily measured as there are seemingly no complete impressions left behind. Much of them simply stretch across the entire matrix. The bivalve impression takes up much of it's side of the matrix, measuring at a rough 38mm. Matrix B: Measures roughly 52mm in length, and 43mm in width. This matrix is host to an intact unidentified bivalve shell, what appears to be a pair of concretions, encrusting bryozoa, and an unidentified organism. The bivalve shell is roughly 25mm wide. A bryozoan colony is visible to the left of the shell's beak. You can also see the concretions top right of the shell. What species of bivalve is it? Each concretion is roughly 5mm in width. The edges of the concretions appear to be encrusted by bryozoa. (It is very hard to get good pictures of this feature, I'm sorry). The final feature of Matrix B is this unusual shape closely resembling a reverse impression of a coral cup. Measures 17mm at it's widest and 10mm at the thinnest. Seems to consist of a central undefined and weathered shape surrounded by a series of 10 striated symmetrical structures resembling the septa of a coral polyp cup. There is no other apparent evidence of similar structures within the matrix, and it seems to be entirely on it's own. Matrix C: Measuring 174mm long, and 97mm wide, this chunk of limestone has some heft to it. Contained within is the fossil of highest interest to me, what I originally thought to be petrified wood. Also present is what appears to be a eutrephoceras shell, and a single unusual ring-shaped organic artifact. This particular matrix was discovered under the water, where only a small part of it was sticking out of the submerged mud. Jutting out of the matrix is a partly exposed branch-like structure of unknown biology. This picture depicts the anterior end of it where it appears to have been broken off, revealing the interior cross section of the branch. This structure is roughly 25mm at it's widest I had originally thought it to be petrified wood, but the paleontologist I consulted disagreed, stating that petrified wood typically looks different. It is most certainly not coral either, so perhaps it is a species of branching bryozoan? Here is a side view of the branch structure, showing the deep striated appearance of it's exterior. At this point it looks almost more geological than biological, but the interior shapes tell a different story. I honestly suspect that it may have been eroded. A scant 19mm of this structure is exposed from the surrounding substrate, which I suspect might be hiding a much longer specimen. Here is another branch that appears similar to the prior one, only much smaller. Measuring a mere 5mm in width at it's widest point. Unlike the larger branch, the entire 25mm of this structure has been left exposed, revealing a very similar striated exterior. Could both of these have belonged to the same organism? This little limpet-like organism was hiding in a tiny recess, merely 4mm at it's widest. Not sure what it is, really. I appear to have forgotten to measure this one while I had my fossils out so I apologize, but this appears to be some form of coral-like structure. If you look closely you can just barely make out what appears to be a defined exterior ring nigh indistinguishable from the surrounding limestone. And finally we have what appears to be Eutrephoceras or at least some other similar mollusc. It's fairly small and measures around 18mm wide from the lip to the anterior of the whorl. Only three chambers can be seen, though there might be one or two more. I'm excited to see what everyone thinks of these fossils, and what they think they might be. It's a mystery that's been nagging at my mind for weeks now, and I have unfortunately yet to find answers. Please let me know if any more angles or pictures are needed, and I will try my best to provide.
  2. Nothosaurus

    Are these real shell fossils?

    I would really appreciate advice on whether or not this matrix of shells or fossilized. It is being advertised as fossilized shells, but I want to make sure before I would purchase it. Thank you so much everyone for your expert advice.
  3. Nothosaurus

    Are these real shell fossils?

    This matrix of shells is for sale and the description says it is a fossil. I would greatly appreciate any advice on whether or not this seems to be a genuine, fossil, or a more modern matrix. Thank you so much for your expertise everyone.
  4. M3gal0don_M4n

    Fossil in matrix at online auction site

    Hi! Once again, I’ve been looking on online auction site and came across these fossils in a matrix. I only have pocket money to use on it. It is cheap, but I wished to know whether it worth the money. There are more images I can upload.
  5. Have a piece of matrix with urchins on it. But they are on a thin bit of matrix that seems to be raised up bit from the rest of matrix. Was wanting see if there was something should do to help protect it or just leave if as is. The edge of some areas of the raised part are very thin seem like could flake. The raised up middle area seems to be all the way around the matrix but no on the 1 side. Will add photos best could to try show raised up parts. #1 #2 #3 #4 #5
  6. Ezio Bonsignore

    Harpactocarcinus punctatus

    I am very intrigued by this critter being currenty offered fo sale. It seems pretty obvious to me that the rock it is sitting on has nothing to do with the original matrix (and indeed, the seller's text does not mention thr world "matrix" at all). But then, if the fossil has just been glued onto an appropriately shaped rock, how was it prepped to start with? Is it possible for crabs to get fossilised into such a soft matrix, that is it then possible to "free" the entire fossil completely intact, with all its legs, sort of Michelangelo's style (*)? And in any case, what technology and tools could produce such a result? (*) Michelangelo maintained that the subjects for his sculptures were already present inside their marmor blocks even before he started working. on them. All he had to do, was to remove the superfluous material.
  7. From the album: Fossils

    1.5 inch lamnid type shark vertebra in matrix from the New Bern quarry. Not sure if this is from the Oligocene River Bend Formation or the Eocene Castle Hayne Formation. If you think you recognize which formation this is from, leave a comment.
  8. shark57

    Paleocene Aquia Formation Otodus obliquus

    From the album: Fossils

    This is the first Otodus I ever found. It is from the Aquia Formation along the Potomac River and measures 1.15 inches. Only the root was sticking out of the indurated matrix and it took several hours of chiseling with a sharp screwdriver to reveal the crown.
  9. brandon tibbetts

    Mollusk

    Just wanted to see if this is Jasper or not. Thank you. About three to four inches and found in Tehachapi mountains
  10. Jlark18

    Bone in gravel matrix

    This bone was found in a gravel pit in an industrial area, outside of a warehouse. California, USA. This is the last place I would have expected to find a bone. I just happen to notice it among many similar looking rocks . The bone seems to have fused or been bonded to pieces of gravel and rock. I doubt from the photos that it will be identifiable but it couldn’t be that old. Maybe it is more common to find bone in piles of gravel than I am aware of. Just thought I would share.
  11. ILikeDinosaurs

    Need help identifying these bones

    I have a mosasaur tooth in matrix but it is surrounded by a cluster of what are presumably fish bones. There are a few vertebrae visible but I can’t seem to identify more than that. It’s from Khourigba, Morocco and is about 8 cm x 7 cm. Just wondering what these bones might be from (similar photos online make it seem like it could be pieces of an enchodus skeleton?)
  12. I would like to hear opinions what would be smartest thing to do. I have couple pieces from Morocco Ouled Abdoun basin that have freepiece shark teeth in them. Problem is that other shark tooth is perfectly under the piece, other one visible at wrong side at the edge. I was thinking could I remove bottom one by using rock carving tool and perhaps scrape other one bit more visible? Or should I leave them be? What are the risks because I have no experience with prepping?
  13. I have some images of a trilobite fossil I am interested to collect. Can I have some opinions if it is worth collecting and if it’s legit please.
  14. fossil35

    question on matrix

    With the trilobites in matrix from utah do you need to do anything to them before storing? Will they fall apart or anything if just left as is? I did try a glue on a very very small trilobite that looked cool but after it dried looks bad now and can't see trilobite well (wish didn't after). Wouldn't want to mess up any others.
  15. C2fossils

    IMG_2600

    From the album: My best finds (so far)

    Crinoid in matrix
  16. Anchiornis_huxleyi

    Hell Creek "raptor" ID

    Olá, recentemente vi à venda este dente de dromeossaurídeo da formação Hell Creek, tem 0,27 polegadas. Foi encontrado no leste de Montana. Gostaria de saber se pode ser um aqueroraptor ou algum troodontíde? Hello, I recently saw this dromaeosaurid tooth from the Hell Creek formation for sale, it is 0.27 inches. It was found in eastern Montana. I would like to know if it could be an acheroraptor or some troodontid.?
  17. I’m heading to Purse State Park tomorrow and I want a chance to share the trip with someone. I like to bring back Matrix( the small stuff) to sort through in my down time. I always find a lot of fossils that are under 5mm playing with this stuff. If anyone would like to pick a number from 1-100 I’ll send (I’ll cover the shipping cost) whoever is closest to my number about 5 lbs of thier own matrix to play with. If you want to take a chance, just post your number and I’ll post the number I picked on Wednesday. For anyone that does get in on the fun, thank you in advance!
  18. Irongiant97

    Cretaceous Reptile Tooth

    I found this in material from the Coleraine formation of Northern Minnesota, which dates between 100-90mya, which was part of the east shore of the Western Interior Seaway. So far i know it’s reptilian but I’m wondering if anyone can give me a more specific identification. The exposed part is about 2.5-3cm long.
  19. So having got even more obsessed with micro matrix lately, I now want some from California and some from Aurora! Also would take some Calvert Cliffs micro. Anyway - haply to trade Florida micro matrix for it, or some other Florida fossils!
  20. Can you help determine if these are real as described and any steps I might take to further confirm the details? [seller verbiage removed -- Staff]
  21. Beelzebufo

    Unexpected fossil

    Found this stone here in the country of Georgia. It was in 1 piece but I accidently dropped it and it split. Looks like some sort of sandstone matrix. Wondering what this fossil is inbedded in both pieces. Thanks for your help..
  22. I found this large chunk of antler in a river just like you see it. I’m wondering if I should knock the soft clay off or leave it displayed as it is. I think there is probably a brow tine buried in there and also I see some bone on the opposite side. Really dying to see what it looks like but it looks pretty cool like it is. I’m also a little afraid that it might fall apart if I remove it. I see some pretty good cracks in it. Thanks
  23. Am I the only one who loves the scent of the sediment in the Coon Creek formation?
×
×
  • Create New...