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This is my small fossil collection! i’ve found the shark teeth and dolphin vertebrae but the rest are bought.
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I bought this 4.8” tooth and it was advertised as being likely a giant chubutensis tooth, but said it was a Megalodon to be on the safe side. Can anyone here positively identify it? This was found in a river outside of Summerville, SC.
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Cow shark from Morocco
Jurassicz1 posted a topic in Is It Real? How to Recognize Fossil Fabrications
I saw this cow shark tooth (Notidanodon loozi) from the phosphates of Oulad Abdoun Basin, Morocco. My question is if its possibly restored / repaired or not good quality. Is this a good shark tooth? -
I was hoping to get some help identifying this Paleocene sand tiger shark tooth from the Aquia Formation. I tried to compare it to the examples on Elasmo but I know that there is a lot of variation in teeth and I am by no means an expert. I thought it looked like a Striatolamia but I did not see any striations- maybe they were worn off. Any help would be greatly appreciated. Thank you so much and happy Thanksgiving!
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Hello! We found both of these teeth in the same spot 6 months apart in Duval County, Florida. We are having trouble identifying whether these teeth are Great Whites or Megalodon. Any ideas? Thanks in advance for any input!
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- great white shark
- megalodon
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Hello, For the first time I found shark teeth in a cretaceous location in Portugal - Lisboa/Mafra. If someone can help in the id's I appreciate. Each tooth have +- 1cm. 1 2. Thanks
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- cretaceous
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Earlier this year I was fortunate enough to meet up with @digit in Gainesville Florida where he very graciously provided my wife and I the opportunity to do some matrix fossil hunting in a local stream. We sieved for a good long time collecting many nice shark and ray teeth as well as other items out of the large portion. At the end we nearly filled a five gallon bucket with gravel that we ran through essentially window screen in the creek to get out the silt and clay. My original trip report can be found here: http://www.thefossilforum.com/index.php?/topic/114209-north-florida-fun/&tab=comments#comment-1264293 Back at Ken's house, he was nice enough to sort the bucket of matrix into sizes for ease of picking. We then ran the matrix through 3 stacked sifters since we had already picked out anything caught by the 1/4" screen in the stream. The coarsest material from the sifters would have been caught by the 1/8" screen so (1/4" - 1/8" range). The next finer size range would have been (1/8" - 1/12") and the finest would have been (1/12" - 1/20"). We bagged it up into 3 gallon ziplock bags of coarse matrix, 1 gallon bag of the medium and about 2/3 gallon of the fine matrix. Once home, I dried it out and began the picking and identifying process See some links below for my ID questions and some answers. Thanks to all those that helped. http://www.thefossilforum.com/index.php?/topic/119245-florida-mysteries/&tab=comments#comment-1309402 http://www.thefossilforum.com/index.php?/topic/119097-gainesville-shark-teeth-question/&tab=comments#comment-1305867 http://www.thefossilforum.com/index.php?/topic/119485-small-florida-sharkrayfish-teeth-help/&tab=comments#comment-1310743 So far, all this you have heard or seen before as numerous folks, including Ken, have made many nice posts about sorting and picking matrix for micro-fossils. Some of them are pinned under this Micro topic. What I wanted to impart with this post were the results of my picking efforts, or at least the start of it since I have not gone through all of the matrix by a long shot. But I think I have gone through enough to give a reasonable summary of what can be found in this material. After I have gone through more of it, I can always update the info. You can also search on the forum and find many other excellent posts from members that have looked at this material, but I don't think I have seen a complete summary of what can be found (if I missed it somewhere, sorry). I am not going to post a bunch of pictures of what I found in this thread because I have placed many pictures in an album. Feel free to check it out if interested: My procedure was to pick though the matrix and remove anything that was a fossil, whether I knew what it specifically was or not. After that, the first thing I did was a volume calculation to see what percentage of the matrix is fossil material. Out of the coarsest matrix, the fossils made up 3.2% of the volume, they were a bit less in the medium material (1.9%) and even less in the fine material at 1.1% When you put it all together (remember there is a lot more of the coarse stuff) it comes out to 2.6% of the bucket was fossil material. To me it seems like a small number when I think that in nearly every small scoop I put under the scope I would find numerous fossils. It of course is really only all that interesting if one can compare it to other matrixes, but it gives one an idea of what to expect from this material. My next step was to sort and identify everything. Easy to say, but that was the hardest part since this matrix was new to me. I should be able to do future batches of this stuff much more quickly. Once that was done, I counted the number of specimens of each fossil type and just made a simple spreadsheet of each matrix size. So what did I find? Here is a sample from the coarsest matrix: Keep in mind, most of these fossils are not complete specimens. So for example, while there are 608 Mylobatidae ray teeth, only a small percentage are whole teeth, but if they are in that category there was enough present to be able to ID it. You can see there are over 16% that I know are fossils, but not good enough to be part of one of the listed types or even good enough for me to figure out yet what they are. With more time (and knowledge??) I can probably ID many of those, but that is for another time. Were there differences between the three sizes of matrix? Yes, and I lumped the list of types shown above into broader categories so you can see how the four classes of material (I included the hand collected stuff) compare: And lastly, if you put everything together, you can see what type of fossils you are likely to find in the 2.6% of matrix from the creek: lots of rays, lots of sharks and a smattering of other marine material. That's all. Not sure if anyone else will find this interesting, but I'm sort of a data guy, so it was fun for me to look at it this way. Thanks for looking.
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- fish
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Found these two partial teeth in my fine material from Carniol France. Aptian - Gargasian One is just the blade the other is just half the tooth. My best guesses are for the half tooth Cretolamna indet. and Protolamna indet. for the blade. Does this make sense or should I keep them as indeterminate shark teeth? scale is mm
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- cretaceous
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Extremely stoked to have found this (extinct White?) shark tooth beachcombing NJ. Assume it either spilled out of Shark River Inlet or Raritan Bay area, or was pumped back inshore during beach replenishment from offshore sand lumps about 5 miles off. Any idea what species of shark?
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Hello! Help please to identify teeth. I think that the upper one is Physogaleus? Length of both - slightly more than 6 mm. Age - most probably redeposits from Eocene. Location - Western Ukraine. Thanks in advance!
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From the album: Gainesville Florida Microscopic Miocene
These are probably the second most common shark found in the gravel. They have a smooth erect cusp and are generally T-shaped. -
From the album: Gainesville Florida Microscopic Miocene
Sharks of the genus Carcharhinus are the most common find in the stream gravel. Due to tremendous variability within the genus, it is difficult to assign a species to these teeth, but these are unique enough to feel somewhat confident is the C. signatus designation.-
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From the album: Gainesville Florida Microscopic Miocene
The three teeth on the left show variations in teeth of the shark Hemipristis serra.-
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From the album: Gainesville Florida Microscopic Miocene
These are lower posterior teeth from the shark Hemipristis serra.-
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- posterior teeth
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Well, I know I said my last post on these tiny fossils would be my last, but I was wrong. Everyone was very helpful with the previous questions (as usual) so I'm back with a couple more tiny teeth out of the Gainesville Creek matrix that is generally Miocene aged Hawthorn Fm. All of these are pretty small, most just a few mm's across. You can see previous posts here for other info or ID's: http://www.thefossilforum.com/index.php?/topic/119097-gainesville-shark-teeth-question/&tab=comments#comment-1305867 http://www.thefossilforum.com/index.php?/topic/114209-north-florida-fun/&tab=comments#comment-1264293 http://www.thefossilforum.com/index.php?/topic/119245-florida-mysteries/&tab=comments#comment-1309402 The first one is what I have tentatively called a Raja type tooth. But I know these are rare out of this material and it looks a bit different than other teeth labelled as this, so I am uncertain. Sorry for the big globs of sticky stuff in two of the pictures, I still have not mastered some of the fine points of pulling individual features out of pictures to clean them up - a work in progress. The next one are some ray dermal scutes. OK, I feel pretty good about the top two, but not the bottom two. In fact the lower right is almost certainly something else, I just don't know what. Any thoughts? Next up are some drum fish type teeth. I have separated what I picked from the matrix into three general types, two of which I feel good about the ID's. The first are what are generally called Pogonias, a genus of Drum fish. In this matrix, they are generally small, black in color, variably shaped and with a root that is rather plain (two on right side of picture). They are set as one layer of teeth in a bony plate. The second group of teeth are often blue in color, tend to be oblong, often have a figure-8 shape to the root and I found numerous multi-tooth associations where there are many teeth stacked on top of each other. I found several posts on the the forum and on the web that identified these as wrasse teeth, probably of the genus Labrodon. It is the third set of teeth that I am unsure of, they look similar to Pogonias, but generally are not as black and smooth and have a different root. it is a bit tapered and is striated. Any idea on what these are from? Lastly are several types of what I have thrown into my "unknown fish teeth" bucket. Maybe that is how they will remain and that is fine, maybe some are not even fish teeth. If anyone recognizes any of them, that would be great! The first two look similar to barracuda teeth, of which I found many, but differ in shape a bit. The first ones are thicker and not as symmetrical as my barracuda teeth and the second ones have a distinctive "S"-shape to them. The next ones: I just don't know. Ok, that's all for now. Thanks for any help you can offer. Mike
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I just recently found this bone in the Cretaceous Black Creek group deposits of eastern North Carolina. I originally thought it was an oddly shaped shark vertebra, but now I think it might be a worn plesiosaur vert. based on the images I looked up online. The overall cross sectional shape is elliptical, and the center looks much too thick for shark (doesn’t pinch in towards the center). Any thoughts? Thanks!
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- black creek group
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Me and ma are planning on making a trip to North Myrtle beach this winter. I know they did replenishment in 2019, I was just wondering if it is worth it for Cretaceous fossils. I'm on the hunt for another mosasaurus tooth for my collection, and am just wondering if this is the place to do it.
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There have been a couple of small rises lately so i went out hoping to stumble upon something nice. Unfortunately the water did not rise enough to really tumble the gravel but it was still nice weather at least. Here are some pictures of my hunt a couple of weeks ago. As for my hunt a couple of days ago I don't have any pictures because i was skunked for the first time ever. No fossil or artifacts at all. I tried some of the large creeks, the ones that are basically as large as the river itself, and all i could see was dried up mud. I'm not sure if the creeks just have less material in them or if everything is just covered in mud. 1. 2. Mosasaur tail vert im assuming? 3. Not sure if coprolite or not but cool fish bones. 4. Rib of something 5. Fish jaw? 6. Turtle 7. Some cool little bone but have no idea what part or even animal 8.
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- cretaceous
- enchodus
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Help needed in fossil sharks ID - part 2 (Upper Paleocene of Chile)
terminatordiego posted a topic in Fossil ID
Hello to all of you guys, a couple of weeks before i asked for help in relation with some shark teeth, and the help indeed was very nice! A couple days before i was back in field trip and found some more teeth from the same strata, and would need your help for the correct ID (hopefully at species or genus level), you guys are awesome!!! Here´s the list of the fossils (each step of the ruler is 2mm): 1) A tiny tooth with very small roots and 3 denticles, the central and main one is triangular and very oblicuous 2) A tooth with very triangular cusplets and with small and shorts ridges in the base of the main denticle (wich is slightly curved), the roots are slightly asymmetrical 3) A half of tooth with triangular cusplets and with a slight triangular depression in the base of the main denticle (wich is slightly curved) 4) A (i think so) stingray tail fossill 5) A tooth that i dont know what could be (the tip is very smooth and the roots have a wood-like texture) 6) A tooth that i think is from Premontreia subulidens, but im not 100% sure 7) Something that i dont know what it is, looks like some kind of skin or membrane 8) A tooth similar in color and root texture that number 5, but with only 1 denticle 9) A tooth with very triangular cusplets and low developed roots 10) A tooth with maybe similar look about Carcharias teretidens? but with slightly longer lateral denticles 11) A tooth with aparently only one denticle, and asymmetrical roots (the rightest part of the right root is easly confused with the sandstone matrix) 12) A tooth with two denticles, striae in the lingual face, triangular depression in the base of the main denticle and the base of the crown is much more prominent that the diameter of the main denticle, might be reworked because is from a level stratigraphically higher. Finally, as a bonus track, here it is a vert. that i found in the same field trip:- 10 replies
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Hi everyone! This has been kind of a labor of love for me for the past few months. About a year ago I acquired a wholesale lot of 1000 Squalicorax pristodontus for use in little fossil collections I make to sell. As I was going through them I noticed the differences in shape and on a whim that turned into a labor of love thought "I'm going to see if I can make a composite jaw of this species". I checked around and couldn't find anything on a reconstructed jaw from S. pristodontus so everything is my own approximation by comparing all the teeth to each other to look for similarities is angle and proportions, similarities to smaller Squalicorax that have been reconstructed, and similarities to the modern Tiger shark (which in my opinion and I think I saw this elsewhere as well has the most similar teeth of any modern shark to pristodontus) to figure out how many teeth where in a row and where to place them. The project took on a life of it's own in my down time and here is the end result. Anyway, I was hoping to get some feedback on it.
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- composite
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