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Showing results for tags 'jaw'.
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This past Monday, during an outing to a quarry with Dave Broussard, our very own Tim (Fossildude19) and Paul (Paul1719) in PA. I found a partial ischnacanthid fish jaw. As it was only the second known from that location I donated it to Dave for study. A few moments later Paul found one too! He also donated his. It was interesting and enlightening watching a professional photograph and preserve it before removing the part of the slab it was in. Dave is a professor at Lycoming College in PA. and a vertebrate paleontologist. Ischnacanthids had a primitive arrangement when it came to teeth (though some argue it was more advanced than we give it credit for.) The teeth were a part of the jaw, though still made from the dentin bone material in the jaw. They did not appear to be able to regrow them as far as we know. This specimen has two partial teeth and one complete one. Im hoping to read Dave's research on the subject when he publishes it. The photo is courtesy of and copyrighted Dave Broussard. *I accidentally put Acanthodians had a primitive arrangement..I meant ischnacanthids ( a type of acanthodian.)
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Found this in Travis County Texas Creekbed area. Looks like three teeth set in a jaw (left side upper area, one slanted one broken off, one full). From Cretaceous area. Lots of Arietina (small curly snail) fossils uphill from area. Any ideas?
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Sorting through material from 4 weeks back. I have never found any Meg fragments at this location. I have found Isurus oxyrinchus, along with other Makos and Great Whites. This one is 11 mm And then ... this 29 mm fish jaw. I find alveoli placement rather odd. Does anyone know of any similar fish jaw? Thanks Jack
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Hi All, About 3", this was found by a friend this weekend by the Cape Fear River. We're guessing a jaw of some herbivore, but no clue beyond that! Anyone know? Thanks!
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I found this front bit of carnivore jaw while out on my latest fossil collecting trip in the White River Formation of Colorado. Only one tooth is complete, the canine tooth has broken off. It’s too large to be Hesperocyon and the cross section of the canine tooth does not match that of Daphoenus, which I have previously collected material, including a canine tooth, from. That leaves Hyaenodon and the Nimravids. After doing some comparative research with pictures of skulls, I am tentatively leaning towards this being from a Nimravid, as the contours of the jaw line near the socket where the canine tooth sits are fairly distinctive and match those in the pictures of Nimravid skulls almost perfectly, less so than the contours seen in the skull of Hyaenodon horridus. Plus, the canine tooth is triangular in cross section, and though I couldn’t find any specific references on this bit of anatomy that makes more sense to me for the stabbing canines of a Nimravid rather than the flatter canines of Hyaenodon. But alas, here I am to get other opinions. Hyaenodon or Nimravid? Or something else entirely? (I am fairly confident this isn’t just a piece of oreodont jaw, haha). Thanks in advance.
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Found this fossil while surface collecting in the Alberta Badlands (Canada) North Of Drumheller in the Red Deer river valley. Looking for some help to ID this unusual looking fossil. If I had to guess I'd say it looks like a possible jaw fragment? Any help to ID would be greatly appreciated. Thank you in advance.
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Share your favourite ICE AGE era fossils, I love to collect them myself This is my favourite fossil: Coelodonta antiquitatis lower jaw Length: 42CM Weight: 3,557KG Location: Permafrost, Siberia
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Prepping some White River Fossils - Guidance and advice needed!
Opabinia Blues posted a topic in Fossil Preparation
I have a few really nice fossils from the White River Formation of northeastern Colorado that I need to prep, and given I am a beginner at fossil prep I would really like to gain some advice and guidance from people with experience do I don’t accidentally damage the fossils. The first fossil is an Oreodont skull. The skull is mostly intact, and I was able to extract it from the field without using any glue or stabilizer or consolidant or anything like that, so this fossil is in its “natural state.” The zygomatic arch and upper tooth row are crumbling, but otherwise everything else that I can see is there appears to be stable. The other side of the skull appears to be still mostly encased in matrix, and is likely to be better preserved. What’s everyone’s opinion on whether or not I should apply penetrant stabilizer directly to the bone before prepping to help keep it intact? The second fossil is a jaw bone, tentatively identified by me as Subhyracodon but I will need to reveal the teeth to know for sure. There are several large cracks throughout the bone (as can be seen) but the entire bone is still in one piece due to application of PaleoBond penetrant stabilizer in the field. There is matrix in between the larger cracks, I imagine I will have to pull it apart one piece at a time, clean the pieces, and then glue them back together. I don’t have any specific questions at this point other than about the overall process. It would be great if those with experience could briefly go over how they would go about prepping these fossils would be great. Is there anything I should avoid, be careful of, or watch out for? Equipment I have includes an air scribe with compressor, dental picks/tools, and the full suite of PaleoBond glues and stabilizers, including the debonding solvent. Thanks in advance! *These fossils were collected legally on privately held land in Weld County, Colorado, with full landowner knowledge and permission.
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I have some Gansu fossils from the Linxia Basin, but I wasn't 100% sure on ID. The teeth were sold as Entelodont molars, and my current assumption is that they belong to Paraentelodon macrognathus from the Oligocene deposits in the Linxia Basin. From what I've read, they are similar to Daeodon, at least size wise. I think the formation would be the Jiaozigou Formation? But I'm not entirely sure. The Chleuastochoerus jaw, i have no idea. I think there are 2 species present in the Linxia Basin, and I don't know if it's possible to ID them down to species level without more specific provenance. That said, I honestly don't know anything about this animal, aside from it being a prehistoric pig. I know the fang had some glue on it when I put some acetone on it during prep, so it's probably repaired. The back side had big globs of glue that turned pretty nasty in acetone, but fortunately, there was nothing on the jaw itself, and I easily dug the teeth hidden inside the matrix. Not really sure if I did a great job though since I don't prep that often.
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I am considering buying this stegodon jaw section. I am looking for a good one for quiet some time now. Came across this one, has one little repair (marked) but i don't know about the rest
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Hello again. What do you think? Do you see anything wrong with this tooth anything i should be aware of? Thanks
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Hi All, A family member sent me pictures of a bone they found in a creek bed in La Cygne Kansas. It isn't fossilized. I have no idea what it's from, any ideas? Thanks!
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Hi all My kids and I found this piece at the NSR and saw that there were multiple bone fragments in it. Do you all think that there is a fish jaw in the lower right portion of the specimen? If so, can anyone tell from which type of fish it is? Thanks in advance! Bret
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When I am hunting, and there is a lot of interesting material and I am running out of time, I over_collect. Anything that looks fossil gets taken for later review. Most of it is unidentifiable bone that gets tossed or donated. This fossil is one of those, but I am thinking that even as broken as it is, it might be interesting. The 1st photo is looking directly down on the chewing surface. At first, I thought no way will I ever identify this tooth. But now I am getting hope. The photo of this tooth is directed left to right along the jaw line of the animal. I am thinking that my thumb is on the tongue side of the jaw. An unusual thing is that the tooth is an hourglass shape, and the length of the tooth running down the jaw is shorter than the width across the jaw. The half hourglass on top is 14 mm and the lower half is 10.5 mm . I am already thinking sloth, glyptodont, giant armadillo.. If you look at the above photo, the left side of the fossil looks like this !!!! The tooth not present has left vertical grooves in the jaw. I have seen similar grooves in the broken fragments of Glyptodont jaws. but the shape of the tooth does not say Glyptodont to me. That seems good enough for a start. Help !!! @Harry Pristis, @digit @Brett Breakin' Rocks @Thomas.Dodson @Plantguy @PODIGGER There is an answer somewhere here.. Additional photos:
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Basilosaurus lower jaw part
JorisVV posted a topic in Is It Real? How to Recognize Fossil Fabrications
I not too long ago bought this piece. The seller told me it was an authentic Juvenile Basilosaurus jaw. But I am a bit worried it's not real since a lot of jaw parts can be casted or faked. Can anybody help me? Size is about 15CM
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Got back out to the Peace River yesterday, returning to the spot that gave me a nice bison tooth on my previous visit. It was 67* F on arrival and breezy. A bit unusual for Florida at this time of year! The water was warmer than the air temp. It was also a little deeper, more cloudy and running a little faster due to rain the previous night. I paddled up stream, portaged over a small area of rapids and was digging by 8:30am. Started off in the last dig spot but was turning up nothing but small shark teeth. It was enough to keep me encouraged but not enough to keep me from feeling the cold breeze. It got to the point where I put my life jacket on to help retain body heat - wind chill in Florida can make it feel downright cold! Who knew? With the first dig spot not yielding much I moved about 20' and started in on some fresh gravel. It wasn't long before I started picking up some nice finds. First was a nice horse molar - A little while later up came a small jaw bone - some type of rodent or fish? It measured 40 mm x 16 mm x 4 mm. All the while I kept picking up various shark teeth, pieces of turtle/tortoise shell, a small piece of dolphin jaw and 5 small turtle leg spurs. My digging was interrupted by another fossil hunter heading north on the river who stopped to chat for a while. Turned out he was not "aware" he needed a permit and said he would be sure to apply for one right away. This came up because he mentioned his hopes of finding artifacts and I let him know it would be illegal for him to take any from the river. When we started talking I had stuck my shovel into the gravel pile and turned away from it. After my visitor moved on I pulled up the shovel and sitting right on top was the largest complete turtle/tortoise scute I have ever found. It measures 79 mm x 55 mm x 10mm - maybe Giant Tortoise? - I was unable to find a match last night in my reference materials. The site continued to provide surprises with this camel cuboid popping up a little later - It measures 43 mm x 16 mm x 4mm I feel pretty confident in the ID thanks to a photo reference I found here on the forum created and posted by @Harry Pristis I include here for comparison - Thanks Harry! I think I had a great day with finds that also included a couple of alligator teeth tips and a cup full of various shark teeth - I think a return to the same spot is warranted on Monday!
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hello everyone, I saw this on our favorite website. It is a mammal jaw dredged up off of Newfoundland, Canada. It is likely Pleistocene in age. The piece is approximately 12 cm in length. It is clearly an herbivore, but doesn't look like bison, horse, camel, tapir or deer to me; however, I am still learning to ID my Pleistocene mammals. Any thoughts would be greatly appreciated.
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Can anybody help me indentify this jawbone? It is around 25 centimeters. Location unknown
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Hi, As a return to the fossil forum after years without using this account, I come with another fossil that I cannot identify. It is a small jaw with teeth, which appears to be in amazing condition, that was purchased in a small rock collection in New Jersey. I have no idea of its origins. The teeth appear to be somewhat sharp, and the jaw starts a broken point and ends at a curved part that would presumably end in the center portion of the animal's jaw. From the break, you can see that the fossil is almost entirely empty. Any information is appreciated, Aiden
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Pictures from my latest NSR trip. Some mosasaur verts and bones, a jaw, ammonites, baculites, and of course the normal array of oddities. No really good verts but still fun. Does anyone know what jaw this would have come from? Also the turtle looking shell and the large white bone next to it feel a lot heavier than recent bone to me so maybe Pleistocene. Ill send a few close ups of those and of the crazier stuff later.
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Found in a NE Mississippi creek. I’m usually in Montana, so have no clue what this could be. Seems a bit older than modern, but obviously not crazy old. Thoughts?
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Many things on the plate. I went back to sort finds from a trip last week and found this fossil that is confusing me. It was late in the day and I was hurrying to empty this sieve and load another one. I thought it might be a mandible section and noting no teeth, tossed it into my collection bag. Now , I am at the point of trying to figure out what is it. It is a Mandibular symphysis, exciting by itself and small .. 16 mm length, 10 mm wide, and 7 mm high. Seems to have 4 or 5 Alveoli pointing straight ahead. like incisors of a tayassuid. I have looked at the Internet but nothing seems similar enough. Perhaps others have seen something like it. I find Blancan fossils at this location mixed with Pleistocene. Thanks for the help. Jack
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Found this for sale online. I don’t know if it is real or not, but I took a gambit and got it. Received it today and wanted to show you all. Jared
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Hi guys! I am new to the forum but am an avid 23 year old fossil hunter and artifact collector. I have been hunting for a good while now and have a large collection from all over Florida. I was recently doing an overnight camping paddle on the peace river to hunt now that the water is low, and I found many things (including some worked flint among the fossils, which was quite surprising) but this particular find I need some opinions on! I’m not convinced that it’s entirely fossilized, though what is confusing me is that it is much heavier than it should be and also did not react significantly to the burn test when compared with modern bone. It is similar to a coyote except in the hinge of the mandible area. I found this under a gravel deposit in a particularly limestone-y area of the river. I have other fossil jaws in my collection which are similar in weight, but not so much color. Any opinions would be appreciated!
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Can anyone help me identifying this jaw, unfortunately the selle can't send me a photo of the chewing surface. I can't understand if it is a boar jaw or a tapir jaw. I'd like to hear your opinion
