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Found 55 results

  1. Hey everyone So I'm setting up a workshop outside for fossil prep. I have tons of vertebrates and invertebrates to prep. I'm pretty experienced with preserving fossils(butvar) but I've never done any real prep work. So far, I've purchased a wet saw, stereomicroscope, rock tumbler, work bench, vice, and mini fridge(for the beer!) I have a dremel and dremel engraver, I know the engraver doesn't compare to some of the air scribes, but it was cheap, and my limestone is extremely soft. I have about 500 lbs of this limestone, and some beautiful examples(Ocala, Tampa, Bone Valley formation) fossils in the matrix. These fossils range in calcite, aragonite, and Calcium Carbonate. Any tips are purchases I should make would be welcome. Particularly polishing and bringing out color. Thanks in advance. -J
  2. I found several mixed pieces last weekend while out in southwest Virginia; bits that had tumbled down the hillside and into the road. This was along a road that follows the Holston River, in mostly limestone/shale. One piece was filled with crinoids (stems), from tiny to pencil diameter; one had meshy bryozoan pieces and brachiopods, then there was the piece that had this. Please bear with me, I've looked online, and in my books, but since I have no idea what I'm looking for, it complicates things, and I want to learn. In both examples, the coral-looking chamber/pore sections are alongside the mesh/bryozoan-looking sections, so I'm not even sure if I'm looking for one, or two separate, organisms. I'm sure whatever it is, it's probably very common in this area, but if someone could help ID it so I'll know next time, or at least point me in the direction of what I need to research, I'd be grateful. Thank you!
  3. Hello all, First post here. I've read the FAQ's and I believe I understand post guidelines. I think I'm in the right place for ID help...apologies in advance if I bungle this. I'm looking for help in determining what this claw/horn/coral looking thing is that I found in my yard yesterday. I'm slightly west of Austin in northern Hays county. Looking at the Generalized Geologic Map of Texas, my area falls in the "Mesozoic: Lower Cretaceous (Comanche Series)". I won't pretend to know what that means, or if it is useful info to include here, but just in case... To describe where I found the rock: it was laying in my yard at the foot of a wooded limestone hillside. I have no idea how long it's been there. It was only partially buried. The property itself has been basically undisturbed for years. Incidentally, I found a nearly 100 year old unbroken Coke bottle on the ground nearby as well. (Not that one has anything to do with the other). Any help figuring out what it is would be greatly appreciated. Additional photos to follow.
  4. Picked up a piece of limestone in a creek bed Between Hunt and Ingram TX. What Is this? More importantly, how would be the best way to get it out of the matrix? I believe the area is Cretaceous.
  5. I found this embedded in limestone at about 1100 feet above sea level on a small mountain near Huntsville AL. I need help identifying it.
  6. Hi everyone, I've collected all sorts of fossils from the Silurian Wenlock Series limestone's of Much Wenlock. And searched for graptolites with no success until now, my son was counting pygidium imprints on this silurian limestone piece and spotted something unusual. Well lo and behold we have what appears to be our first graptolite. I've so far pinned it down to be Monograptus priodon or Cyrtograptus murchisoni. Anyone else have a similar success story.
  7. Hello, folks! I'm one of those guys that finds fossils fascinating, and loves the natural history museums, but has never really tried to find fossils. I bought a one-inch fish fossil in a museum gift shop many years ago, for a few bucks, and for along time, that comprised my fossil collection. One day, my collection grew 100% when I realized one of the random rocks bordering a garden at the house I was renting had a pretty large fossil apparent in it. I took that stone, and have had it on my mantle for years. I always wondered what it was, and finally I stumbled on this site and decided to see if the good folks here can help me settle once and for all what it is. I have a good guess, but we'll get to that. I read some ID threads and the posting guidelines, and I realize that I've already made one mistake, in not including a scale inthe pictures. Oh well, hopefully my descriptions of size will suffice. Also, my cheap little camera struggles with focus and lighting on macro pics, and I'm no photographer. But it's a pretty large fossil so hopefully you can see what it is. I'd be super stoked to have my suspicions confirmed, or destroyed, either way, as long as I find out what it is and can match it to a picture of something pretty similar. Speaking of that, I have looked at fossil ID charts and at pics, and while I can't find anything that matches it exactly, I feel like I'm close. In any case, here are the pics and then I'll say what I think it is so you can all laugh at the guesses of a Rock Noob. As mentioned before, it was found in a backyard in Oklahoma City, but I suspect it was not native, and was carried there somehow. It does resemble rocks I've seen near just about every beach I've ever been to, especially on the Gulf of Mexico. I'm thinking it's just some sort of sedimentary limestone. The fossil itself is about one inch across the round cross section you can see at the left end. It appears to be the broken end of a long, cone shaped "shell" of some sort. The shell continues into the rock for about 4 inches, and I can't see that it comes out the other side, but I get the impression it was longer at some point. My observation of the segments that make up the object, and the suggestion of a spiral-chambered structure I can sort of see inside the broken end, lead me to believe it was some sort of straight-cone-shelled ammonoid creature. My feeble web research indicates that there were such creatures, many types, in fact. I've found many drawings and pics that are close, but not dead-on enough for me to close the case. My official guess is that my fossil came from something approximately like this: But, hey, I'm no expert on ammonoid or nautiloid taxonomy, so I leave it to you, good experts! The Photographs: (poor as they are) Main view, you can see into this broken end and in person, sort of see how it looks as if it had spiral chambers inside. The pronounced longitudinal ridges or scores are very evident. There is a slight curve to the fossil but it is broken in some places and I think it was originally fairly straight. It has a regular gentle taper towards the end that disappears into the rock. What I believe were originally open spaces in the "shell" have filled with some sort of crystal that grew there. Another view of this end. The whole rock is about 8 inches in length, perhaps 5 inches fron to back, a few inches thick. The fossil is clearly separated from the rock, it looks like I could tap the rock with a hammer and the fossil would just fall out. I don't plan to try that, however. You can see there is a hole or crack about one inch from the leftmost extremity. You can see inside and see the crystalization that has taken place in there. More importantly, toward the upper left of that crack, you can see that the outer surface of the object has broken away. This reveals that each of those "cells" apparent on the outside are hollow inside- the object is in fact a stack or a spiral arrangement of many, many, little chambers. You can see more open cells on the center-right area as well, and these have filled in. This strongly suggests an ammonoid or nautiloid mollusc to me. It appears that the transverse chevrons, along with the longitudinal scores are actually the divisions between tighly packed shell chambers or sections. The chevrons divisions appear in annular rings or a spiral around the object, at regular intervals all along it's length, on every part I can see. These scores and chevrons look very much like the sutures evident in other shells, but I have yet to find a picture that matches closely. Moving to the right, this chip came off without effort, basically just fell off (long ago.) you can see the imprint of the object, along with a very clear imprint of some scallop-like bivavle mollusc. I'm already convinced it's a sea creature, but this bivalve further indicates where this came from. My object disappears into the rock behind that bivalve imprint. I feel I could dig more of it out, but I would rather leave the rock as-is. Closer shot of that area. The shell itself is gone but it left a perfect, detailed imprint of the little scallop. Numerous other small shells are evident, as with all this type of rock. From reading the ID advice I realize that a "hand shot" isn't the best indicator of size, but I promise, to the best of my knowledge, that my hand size is as average as it comes. There are other things hiding in here, it hard to see but this area seems to have something going on underneath it. Hopefully htis is enough for someone to recognize my mystery "shell." I won't be surprised if some one can say that "this is a very common ________ from ________ where they dig them out by the ton in ________limestone quarry." But you never know, this might end up being the find of the century! (I won't hold my breath. . .) Thanks for looking! I also have two rock samples, one of which may be petrified wood. Is there a similar "Rock ID thread" I can post them in? -Brian
  8. Hey guys, I'm kinda new in fossil hunting, but even from my limited experience I like it a lot. Does any one know of any spots in NE Kansas that are worth visiting? I'll probably visit a couple road cut outs and some spots near Tuttle Creek this weekend and post my findings, if anyone would be interested.
  9. Ho everyone, I've been all over the place trying to figure out what fossil this is, but being a rank amateur is no help. Any ideas as to what this is? Thanks!
  10. Hi all, I'm fairly new to this forum and fossil hunting in general. I need help identifying these, idk if they are coral, sponges, posibally bone or what. These were found in NE Kansas, in a rock deposit full of bryzoans, bivalves and other oceanic fossils. I do know the majority of these fossils here come from around the Cambrian through the Permian periods, however there have also been a few ice age fossils in the area, so that may help. Thanks a lot!
  11. Hi, Does anyone know an effective way to clean fossils that does NOT damage them? I've heard about using vinegar, but I do not know how long or how diluted the solution must be... most of my fossils are in limestone, so idk if that helps with anything. Thanks PS- I found out about using vinegar and how the acetic acid dissolves CaCO3, but would the acetic acid also dissolve fossilized shells and whatnot (specifically chonetes fossils)? Thanks again
  12. Hi all, A few months ago I was hunting in a hill that had been split for construction and found an abundance of fossiliferous limestone. I could identify most species, which consisted of mostly bivalves and brachiopods. I was thinking these were a type of brachiopod, but I haven't been able to place my finger right on it. Help is appreciated, and thanks as always!
  13. I've noticed that a huge majority of the North American Silurian system is composed of dolomite. During the Ordovician, it seems to me that dolomite formation was sparse, but during the Silurian there is a massive surge of it, and in the succeeding Devonian it seems to have returned to pre-Silurian levels again. What was the reason for this? Is this just a North American phenomenon, or was it worldwide?
  14. My family and I usually visit the Frio River in Leakey, Tx every summer. A few years ago we were all set to go swimming but upon arriving we saw that the part of the river we usually frequent had dried up. I decided to make the best of it and explored the dried river bed looking for anything interesting when this isolated chunk of rock caught my eye. I picked it up off the ground, took it home with me, put it in a drawer and forgot about it. A few months ago I found it while doing some cleaning and realized it had to be something more than just an oddly shaped rock. I cleaned it with water and a toothbrush after reading online that that's a simple way to clean fossils. A friend of mine with limited knowledge of fossils suspected it was some kind of fossilized coral or sponge. What I originally thought was matrix does look a lot like syringopora, but I can't find pictures of any prehistoric coral fossils that match the appearance of that hot dog in the center! I saw a sperm whale tooth on this forum that looks similar but I'm not sure if what I found feels like a tooth. It feels way too smooth to me. I love fossils and I own some shark teeth, coprolite, and a little trilobite, but those were all bought. If whatever this is turns out to be something, then it would be the first fossil I've ever acutally found myself. I'm still really new to this so please forgive me if I am asking silly questions or submitting this incorrectly. Any insight would be greatly appreciated!
  15. We we found this in a pile of limestone rubble in our garden. Is it an ammonite? It seems to have a head like a worm so we are struggling to identify it. It is about the size of the palm of a hand. Any help gratefully received.
  16. The following set of photographs is of a roughly 5-inch x 5-inch x 7-inch limestone fossil. I found it in Eastern Anatolia along the Turkish-Iranian border near the village of Uzengili. It exhibits striations from what I call "top" to "bottom", although there are some (only 2 or 3) horizontal striations that seem to have a replacement material akin to quartz, in that it appears clear (but very thin). At first I thought this was a coral, but I am beginning to wonder if it is a Stromatoporoid Sponge... however, it could be something entirely different, and that I why I am presenting photos of it in this forum to see if anyone recognizes this morphology. The following photographs show the fossil in rotations of 90 degrees (which I have labelled North, East, South, and West for reference). I also have a "top" and a "bottom" view, although what I label as the "top" may actually be the "bottom" if it turns out to be a sponge and not a coral. Of note are some tiny features along the "bottom". These features may be part of the fossil, ore perhaps they are growths of some other material that has leached out of the soil and onto the fossil. These features seems quite well integrated with the rest of the limestone. What is curious is the fact that the "bottom" looks like it is a fracture, in that it is smooth with few features other than some parallel striations. To have these intricate features survive on a fracture plane seems odd to me and that I why I am suggesting that they may be leached material. I am an engineer and not a geologist or paleontologist, so some expert identification help would be appreciated.
  17. found this relief in the limestone at bluffers park it is just over a foot long any ideas what used to be there? there are lots of fossils in the limestone boulders used for the breakwall found some calcite vugs too i will post more pictures here
  18. Hi! i found this fossil, among with many others which were Crinoidea in limestone. This was lying amongst the limestone pebbles which contained minute fossils. This one caught my eye, at first it looked like a rock but on further inspection it got me thinking it could be some sort of fossil. It has lines running along it, in one direction, they taper down to the bottom which I also have took a picture of. It was found on the coast, and the site I went to is renowned for its many crinoid and coral fossils. The whole shoreline was mainly limestone. I was thinking it was some sort of coral or shell. It measures approximately 5cm in length. Maybe a belemnite? Thank you!
  19. Hello, Long time occasional lurker, first time poster; I hope this is the appropriate place and method for posing this question, and I apologize if it is not! I have some limestone blocks containing conodont teeth and shark teeth, which I would like to break down with acetic acid. From what I have read, adding a buffer to the acid solution would greatly help in preventing damage to the teeth (and especially the roots), but I have no idea what buffers are readily available (and from where they would be available) and commonly used (and how much is needed). Can anyone advise? Any experience you've had with buffering acetic acid for dissolving limestone matrix to retrieve small teeth that you'd be willing to share would be greatly appreciated! Much thanks! :-)
  20. So I took a small rock from Vojak peak of Ucka (Uchka) mountain in Croatia. Later I noticed interesting (well, it's interesting to me, since I know close to nothing about fossils) shape on it. I wonder is it a fossil at all and if it is, what was it fossilized there? The rock is limestone: I would appreciate your help in identifying it.
  21. We recently found this sample at about 300 meters elevation, 20 kilometers from the ocean. Can anyone give me an idea of their age from these pictures?
  22. A few things in this rock.. any ideas? Thanks
  23. The tags about cover it. GarcĂ­a-GarcĂ­aplapueyquaterntufatravert2013.pdf
  24. And some geochemistry as well.. A reasonably instructive figure 10(carbonate dilution,cyclicity) reboupittetpalcu3de.pdf
  25. This was found in Pahrump Nevada. Can anyone tell me what it is? Please?