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Showing results for tags 'matrix'.
Found 132 results
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Hi. Found this tooth in Ryan formation matrix from Waurika OK. I found this tooth that looks to me to be from a shark, but does not match any teeth from this locality. It is about 3MM. Is it a shark tooth or something else. Any thoughts on this would be greatly appreciated!
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So, what is the safest way to remove matrix (sandstone and limestone) from calcium shelled fossils. Everything I've read involved acids (some pretty dangerous). What is most ecologically friendly and safest way? I have picks and dramel , but these shells are very thin and almost impossible to remove from the matrix. I am thinking that weaker acids might not work that well and the costs of using more powerful stuff would require a special room with exhaust systems and ways to neutralize the stronger acids to make them environmentally safe. Images are typical of fossils I want to extract. Anyone have a good solution for this issue?
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Is this real? I don't have any info about this fossil. I paid half
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Hunting today. In an area which I had not previously found the rockfossil mix, I found many of them. Here are my most interesting. Here is one , which I believe is whole, where I think I know the genus, and likely the species. looking for confirmations... This is a miocene fossil ... 5 - 23 mya. And # 2 is a broken tooth, Once again miocene fauna. and finally, one where I have no clue... This is an oddly shaped bone.... I am seeking the most basic clues. Which bones look like this one? As always, comments, suggestions, identifications are ALL appreciated!!!! Please do.
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I dug this up in Wyoming and was told it's a Mioplosus. The soft sandstone came off with only a bit of effort. Now I'm on to a harder crystalized matrix around the most delicate areas. I don't want to lose any of the carbon so I'm asking for help. I've used dental tools and pen razors so far. I see amazing, beautifully completed fossils on this site with no sandstone on them at all. Is there a method or tool I am unaware of?
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Looking for species (ID) lists (Lee Creek Mine & Mesaverde Formation)
ziggycardon posted a topic in Documents
Hi everyone I just ordered some more microfossil matrix samples, most of which are rich in shark teeth. But I would like to know what to expect from the matrix, which means I am looking for websites of pdf's which describe the species from those locations. The first is from Lee Creek Mine, Yorktown Formation, Aurora, North Carolina (Miocene), I did find an ID section of Lee Creek teeth on elasmo.com but it wasn't extremely extensive. The second sample is a shark tooth rich Limestone Block (which still needs to be disolved) from the Mesaverde Formation, Rollings Member, Colorado (Cretaceous). If anyone has some pdf's of info sheets that could help with ID'ing the finds, I would be more than grateful! Thank you in advance! -
What is the best substance for a false matrix for loose bones?
sneakyelf posted a topic in Fossil Preparation
What do preparers use to create a false matrix for fossil displays like this? Thanks! -
From the album Aurora/Lee Creek Mine Micro Matrix
Tiny Dallarca elnia next to the head of a sewing pin from the Pliocene/Pleistocene micro matrix of the Nutrien Aurora/Lee Creek Phosphate Mine in Auora, North Carolina These got much, MUCH bigger! -
From the album Aurora/Lee Creek Mine Micro Matrix
Tiny marine gastropod from the Pliocene/Pleistocene micro matrix of the Nutrien Aurora/Lee Creek Phosphate Mine in Auora, North Carolina -
From the album Aurora/Lee Creek Mine Micro Matrix
Discoporella ? Pliocene/Pleistocene from Aurora Fossil Museum micro matrix Aurora, North Carolina Thanks to @Al Dente for the ID -
From the album Aurora/Lee Creek Mine Micro Matrix
The large and the small of it: two shark teeth from Aurora's "Emergency Kit" next to a sewing pin. Pliocene/Pleistocene from Aurora Fossil Museum micro matrix Aurora, North Carolina -
From the album Aurora/Lee Creek Mine Micro Matrix
Family Sparidae Pliocene/Pleistocene from Aurora Fossil Museum micro matrix Aurora, North Carolina -
From the album Aurora/Lee Creek Mine Micro Matrix
Lagodon rhomboides about 3 mm long Pliocene/Pleistocene from Aurora Fossil Museum micro matrix Aurora, North Carolina -
I have noticed that in ignaberga. The rocks in matrix are very crumbly. How do i fix it? And for me its pain to prep. Like this shell in the gaps theres really hard matrix. And the black stuff that some told me was magnesium oxide. Its really hard to remove them i need to scrape it off with dental picks. Some said toothbrushes work for them. Tried it sometimes it removes them but not often. Should i just keep to scrape them off? Risk of damaging the fossil? I do have cyanoacrylate Will that help the crumbling rocks?
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I have alot of fossils with super thin matrix on them. How do i prep it manually? The rocks are limestone.
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Hunting From Home - Texas Pennsylvanian (Bridgeport) Matrix
JamieLynn posted a topic in Fossil Hunting Trips
While I have been out fossil hunting a bit in the Texas Summertime heat I am still having great fun with the Micro Matrix- it sure is pleasant to sit in the AC and poke about for fossils! I had some great little finds in the Mineral Wells matrix, but i am just amazed by the Bridgeport matrix. Even though it's still Pennsylvanian, it's very different from the MIneral Wells stuff! Different formations and all..... What's really neat about the Bridgeport matrix is firstly - it's bigger, typically. and secondly...it's COLORFUL! Reds and golds and purply browns and oranges. It's really lovely stuff!! Here are some of my favorites from the Jasper Creek formation. : First the Echinoid bits - I love these little "cat ghost" plates. 2 mm Most of the spines were incomplete, but I found a nice base and a nice spine, just not all one piece 7mm base and 1 cm spine A funky Echinoid plate 7 mm So many neat Crinoid fragements - arms, cup fragements, columnals, etc! All of these are aprox 5-8 mm except the first one which is a honking 1.5 cm. ) And this crazy crinoid spine that was broken and was regenerating before it died...hence the "dimple" on the end. Thanks fellow Forum Members for helping with that ID! 1 cm Love this crinoid column...I think it's my favorite. It's so Art Deco.....about 3 million years early. 1 cm Some other nice/ interesting finds Neospirifer Brachiopod 5 mm Not sure what this is...I assume a brachiopod. 5 mm Colorful Bryzoans 4 mm Bryzoan on a Crinoid 8 mm Girtycoelia sponges Each are aprox 5-8 mm Gastropods: Pseudozygopleura 4mm Possilbly a Phymataopleura? Not sure of ID 5 mm Possibly Goniasma? 5mm And then there's this thing......a bryzoan encrusting a sponge! 1 cm- 10 replies
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I hesitate to post this because I know next to nothing and don't know if it is worth posting, but I picked up what I would call a conglomerate one day on a Florida beach near Jensen Florida primarily because of a fossil tooth that was in the conglomerate. I could see a few other bits of bone as well. But I got to looking at the conglomerate with my microscope and saw what I thought were some nice small but interesting things. I suspect that the conglomerate is not very old and don't think there is likely anything much older than the tooth in the conglomerate except possibly some small shells, which I tried to photograph. I was thinking of dissolving this conglomerate but didn't want to destroy the shells, some of which were crystalized. I decided to try dissolving a smaller piece that I had which showed only what looked like bits of bone and had few if any shells. Here is the kind of thing that I saw in the big conglomerate that I've not decided if I would try to dissolve. What do you think? Does it look like anything old or interesting might be in this clump or do you think I would more likely to destroy some of the nicer things (if you think there might be any at all) by dissolving this clump? I'll post photos of some of the things that stuck out to me even though most were .1 cm or less. A few were slightly larger. And a a few a lot smaller. First the conglomerate showing the brown tooth, which is about .75 inches square. Then some of the much smaller things I thought were nice. The last is my favorite. Appears to be maybe a piece of coral or stem. What do you think? Thanks to all. Sorry if this is just waste of space.
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Greetings, I am a newbie with a good fossil hunting ground. I have permission to hunt on this property. My previous post regarding a Caudal Vert. didn't get much attention. I was trying to find the age because most other material is Pleistocene. I went looking for more verts in the piles. On the other side of building lot I found a large boulder that was solidified mostly of chalky limestone. Visible on 4 sides are what I suspect are duogong ribs. There are many micro fossils visible. I have been cleaning the sandy dirt away from where the fossils are. They appear to be on the brittle side. The boulder is 24" x 12" and about 150 pounds. A dental probe has allowed me to scrape away areas near the fossils but don't want to push it. I'm looking for suggestions on what you experts do with a specimen this size. Thanks to all of you for your ideas. I am a science teacher in Sarasota County. I know some of you are in my area. I would like to make contact with any local experts. Regards, Michael
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Hi. Here are some cool finds from the past week after going through the Lee Creek matrix. I feel pretty confident in most of my IDs. Couple of them I have no idea. Thanks for any feedback! Much appreciated in advance! Enjoy the pictures. 1. I believe this is a catshark tooth - scyliorhinus 2. Tope shark - Galeorhinus 3. I have found a couple of these teeth that are identical to this heart shaped tooth. 4. Hardnose Shark - Carcharhinus macloti 5. I thought this was Dogfish Shark but the more i look at the root, i think I am wrong. 4. Is this a mouth plate from a fish? 5. I think this is going to be put in the Fish tooth pile. 6. Is this a broken tip of whale or dolphin tooth? Normally i would just assume fish tooth but it looks different than the others I have found. 7. Another one for the fish tooth pile?
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Hi. Found some neat stuff in the Lee Creek Matrix today. I believe most of it is fish/skate teeth. If anyone get help with ID it would be much appreciated. Everything is 1 - 2mm. Also, Can somone explain how to get of the dirt on these teeth? I soaked them in hot water and some of it came off. They are so tiny to scrub. What would be safe to soak them in? Thank you for any feedback! I believe these two teeth are Rhynchobatus Teeth #1 #2 #3 I think this is some type of skate tooth but not sure what type #4 absolutely no clue #5 I believe this is a fish tooth
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Hi. I have no idea where to even begin with this one. Just found this in the Lee Creek matrix that I have been working through the past month. This one is 1MM. My uneducated guess is..... nevermind I have absolutely no clue! Anyone's guess would be better than mine. Thanks for any feedback. Mark
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I found these two teeth that are somewhat similiar. I was thinking more of shark tooth than fish but I am not sure. It is just over 1MM. Thanks for any feedback. Tooth#1 Tooth#2
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Hi. Found this crazy shaped tooth this morning going through Lee Creek matrix under a micrscope. Never saw anything like it before. Hopefully someone has seen this before. Looks to be slightly over 2MM. Thank you in advance for any feedback.
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Calcite clam shell matrix pieces for trade
mattbsharks posted a topic in Member Fossil Trades Bulletin Board
I have some matrix pieces from ruck’s pit in Florida with some awesome calcite replacements And formations in the shells. I am open to all kinds of offers, including looking for other kinds of Matrix pieces, fossil fish and much more! -
Hi. For Father's Day my kids got me an electic microscope. I have been picking through Lee Creek matrix that I purchased to get me through quarantine. I am really not familiar with smaller teeth so it would be greatly appreciated if anyone can confirm my ID. Enjoy the pics. For all the Dad's, I hope you had a great Father's day! This tooth is 2-3mm. I thought it was small tooth sand tiger but the root seems rather large. I have been all through Elasmo.com and I cannot find a match. The next 2 teeth cusps and the blade remind me of a mackerel but the root does not match a mackerel so I am kind of at a loss.
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