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From the album: Lee Creek
Rhincodon cf. typus Pungo River Fm., Aurora, NC, USA a minute tooth from the biggest fish in the sea - the whale shark. Being filter-feeders, their teeth serve no known function and are considered vestigial. -
This specimen was found in micro matrix purchased from the Aurora, North Carolina Fossil Museum. Description: Teeth are very similar to the genus Galeocerdo with finely serrated, long, thick and warped crowns; pronounced notch, small serrations on heel of distal side. Undulating margin and fine serrations on mesial edge. U-shaped root with a prominent protuberance on lingual face and transverse groove (Fig. 5.10). Physogaleus contortus differs from the genus Galeocerdo in having very prominent and bulging root with the deep notch, and a much more erect crown in lateral view. (Leder, 2005) References: THE NEOGENE SHARKS, RAYS, AND BONY FISHES FROM LEE CREEK MINE, AURORA, NORTH CAROLINA, Geology and Paleontology of the Lee Creek Mine, North Carolina, III. pgs 146-147 Figure 50 by Robert W. Purdy, Vincent P. Schneider, Shelton P. Applegate, Jack H. McLellan, Robert L. Meyer, and Bob H. Slaughter. B. W. Kent. 2018. The Cartilaginous Fishes (Chimaeras, Sharks, and Rays) of Calvert Cliffs, Maryland, USA. In S. J. Godfrey (ed.), Smithsonian : Contributions to Paleobiology 100 : pgs. 110-111 FIG.2.21 e,f,h (PG. 109)
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Greetings again Thisis a second vertebra also found at the Lee Creek Mine (aka Aurora) in Yorktown spoils. It is 50mm in length, rather porous and very light. I was thinking bird, but thought I'd get some other opinions. Any ID suggestions? The photos in order are: "bottom", "top", "side", end 1 and end 2
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Greetings, Since There's not much collecting to be done here, I've started diving into the collection and trying to ID and label. I found this vertebra at the Lee Creek Mine (aka Aurora) in Yorktown spoils. It is 33mm in length, rather porous and very light. I was thinking bird, but thought I'd get some other opinions. Any ID suggestions? The photos in order are: "bottom", "top", "side", end 1 and end 2
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Identification: Ray, Clayton E. and Bohaska, David J. 2001. Geology and Paleontology of the Lee Creek Mine, North Carolina, III. Washington, D.C.: Smithsonian Institution. https://doi.org/10.5479/si.00810266.90.1 From Page 99 & 100: "The crown of the Lee Creek Mine tooth (Figure 15o) is sharp, slightly curved lingually, and has a perfectly smooth surface. It is compressed laterally, and the cutting edges are distinct but dull. A narrow and relatively long apron descends onto the lingual face of the root. The roots of these teeth are bulbous and are wider at the mesial and distal sides than at the crowns, and they possess a well-marked central foramen and transverse groove. A pair of prominent lateral foramina are located high on the mesial and distal sides of the root, and the basal area of the root is marked by small, irregular vascular openings. These teeth are identical to those of the extant species, Rhincodon typus, Smith." Whale shark teeth are very obvious, with a tall, bilobate root, and a narrow crown. More on ID.
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From the album: Lee Creek
Rhincodon cf. typus Pungo River Fm., Aurora, NC, USA A minute tooth from the biggest fish in the sea, the whale shark. Being filter-feeders, their teeth serve no known function and are considered vestigial. -
Just in case you did not read my recent post... Hope everyone is doing well. I miss being in a creek or on the beach, but all in due time. Every night I have been relaxing going through different types of matrix. Last week, in addition to looking through Bakerfield matrix, I also looked through Pungo Formation matrix from Lee Creek. I believe the these are three shark teeth are whale or basking shark teeth. All measurements are in MM. Any feedback (as always) is much appreciated!! 1. Basking shark tooth with the root!! If I am right... wow! If I am wrong.. nothing new and any expertise is much appreciated!! 2. No clue? So pathologica whale shark 3. 100% My favorite shark when I was a kid and my daughter thinks I am a superhero because I have a whale shark tooth Thank you for any feedback and looking at my teeth!
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I received some matrix from @sixgill pete a while back in a TFF auction and picked most of it a while back and ID'd the bulk of the teeth and other material. Lately I have been going back through some of my sharks teeth and looking more closely at items I was unsure of These three teeth are one such group out of this matrix. I have read Purdy et, al (2001) a bunch of times, looked at elasmo.com for hours on end, read dozens of threads on here and am still a bit confused/uncertain. So, I figured why no just ask and get several more opinions, I always appreciate what folks here have to offer. The teeth are shown in the pictures below and it is mostly the big (relatively speaking) one (#1) I am most interested in. The two smaller ones (#2 and #3) are fairly similar looking although #3 is much more worn, and are likely small symphysial teeth from ???. Tooth #1 is 7.4mm tall and about the same width. My first guess (wish?) was a Megachasma even though I know these are extremely rare out of the Lee Creek material. It sits very flat on it's broad base and the crown is slightly curved lingually, but not as much as many depictions of this genus. There are no serrations on the crown, but it is somewhat worn and the tip is missing, so that could factor in. I have looked at all the various posts on here of possible Megachasma's, most of which are probably not (more likely symphsials of any number of sharks) and looked at Don's Megachasma that Dr. Shimada confirmed and still was not 100% convinced one way of the other. This tooth does not look dissimilar to what is in Purdy or the description written there. Some of those crowns are not very "bent" either, nor is the specimen that Don posted very curved as far as I can tell. But then I see many posts by @MarcoSr and @Al Dente and others that show symphesial teeth from Hexanchus, Carcharhinus, Hemipristis and Galeocerdo that all bear similarities. So, I ask what you think and appreciate any and all insights that can be offered. And here are some close ups of the crowns on each of the teeth just in case that adds anything useful.
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- carcharhinus
- hemipristis
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Hi. Happy New Year everyone! I was looking through some more matrix and I came accross this 2mm ammonite or cinnimon roll look alike Any idea what this could be? Thanks so much for any feedback.
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Scale is in mm. Found in Lee Creek material.
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Is this a diatom found in Lee Creek material? Scale is mm.
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Found in the Lee Creek spoils pile. Is this a whale vertebra or possibly a digit bone? The somewhat flattened and oval cross section kind of looks like images of whale digit bones to me, but I am far from knowledgeable about this. Bonus with this find is the shark tooth embedded in the concretion on the top of the fossil. Any guesses as to what it is?
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Please help with an ID for these small teeth found in the Lee Creek spoils pile. Sorry for the poor image quality, but my cell phone does not take good pictures of tiny objects. Both teeth are approx. 5mm wide and 7mm tall
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Found in the Lee Creek spoils pile. Is this some sort of coral or a cast of a burrow? The item is tubular and was hollow at one point and filled with something that looks like obsidian or flint. Or maybe it was the other way around and the "filling" was covered by the material surrounding it? Maybe something geologic and not even a fossil?
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One more. What throws me off about this one is the oval root base, when all several dozen other Odontocete teeth have a circular root base, and the wear pattern on the tip. Thoughts?
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hello everyone, I am looking for some assistance in identifying two odontocete teeth from the Pliocene Yorktown Fm, Lee Creek Mine. The first photo shows the two teeth in question on the left vs a Kogiopsis sp. tooth on the right Are the teeth in question just Kogiopsis with the crunchy outer coating intact? Marine mammal ID isn't my forte. There are 3 photos each. Interesting that the second of these teeth almost has an opaline filling of the basal cavity. Any help is greatly appreciated! TOOTH #1 TOOTH #2
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From the album: Sharks
"Dusky shark" Yorktown Fm., Lee Creek Mine, Beaufort Co., Aurora, NC, USA-
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- aurora
- carcharhinus obscurus
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I was able to acquire a nice Giant Thresher (Alopias Grandis, non-serrated form) that came from Lee Creek (Aurora, NC). It's the third in my collection. I'm curious to know how rare/uncommon they are from that location. Giant Thresher shark teeth seem to be found with some regularity in South Carolina, although they be from the Oligocene. Giant threshers are also found in Maryland along Calvert Cliffs (Miocene). I've seen a few other Giant Threshers from Lee Creek in other people's collections and have heard about a few others. Curious to know, especially from some of the long-time LC collectors, how often they heard of a Giant Thresher being found in the mine. Daryl.
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- alopias grandis
- aurora
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I'm going through my vertebrate collection and making sure the labels are correct before I start forgetting everything haha. I have here two small bones that I found from the Lee Creek Mine in NC. I collected the white one from the Pliocene Yorktown Fm, a marine fauna. The brownish one was collected from mine spoil, so it could range from Miocene-Pleistocene. I have them tentatively identified as marine mammal phalanges, but these are somewhat out of my comfort zone. Thoughts? I"ve tried to show the two bones from all angles. If better or additional photos or needed, please let me know Thank you in advance!
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Found this tooth at a local rock store. It's about 2.7 cm long. I have no locality information, but I think its preservation suggests its from Lee Creek. It has worn secondary cusps, indicated by arrows. Any information would be much appreciated.
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OK, these shouldnt be too hard. I have hunches, but not really strong on these types. First is from Belgrade mine, NC. Thinking alopias... These three are from Lee Creek. Not at all sure... Fairly certain these guys are alopias...
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ID requested: Miocene (micro) sharkteeth from Lee Creek Mine (USA)
ziggycardon posted a topic in Fossil ID
Hi everyone! Little over a week ago I recieved some new bags of microfossil matrix and this time there was a bag with material from the Lee Creek Mine, Yorktown Formation, Aurora, North Carolina, USA (Miocene, 14,5 mya) This material is quite rich in shark teeth as I found little over 90 shark teeth in it. I have photographed a couple of them already and posted them in my microfossil topic. But since I doubt I will get many help with the identification of the teeth there I am going to repost the first batch of teeth here (I apologize for the repost admins) and upload the rest of my finds from that material in this topic from now on. I have tried to ID some of the teeth with the help of the website Elasmo & the paper "Geology and Paleontology of the Lee Creek Mine, North Carolina, III by Clayton E. Ray and David J. Bohaska", but I feel like my eyes aren't enough trained yet to distinguish enough to make proper ID's on all of the finds, so I not all ID's will be a 100 % correct I am affraid. Here are some of the first teeth I photographed. I would be gratefull if some of you could help my ID some of the teeth of verify /correct some of the ID's I have come up with. If the photo's aren't clear of good enough, just let me know and I'll try to make some more/better ones. Thank you in advance! The first tooth which is by far also the favorite in the bunch: Tooth 1: a Sphyrna zygaena tooth? Tooth 2: a chunk of Galeocerdo sp. tooth Tooth 3: another Galeocerdo sp. tooth Tooth 4: This one is a tooth which I have a hard time identifying as I feel it has a lot of features that return in different teeth. Physogaleus? Sphyrna? Loxodon? Tooth 5: another I haven't managed to ID yet. Tooth 6: Carcharhinus sp. Tooth 7: could this be Negaprion sp.? Tooth 8: Tooth 9: Scyliorhinus sp.? Tooth 10: Megachasma sp.? Tooth 11: Megachasma sp.?.jpg.07507fea64bddeeb831b2fd240c955b9.jpg)
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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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- fish teeth
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Hello. I found this tooth about a year and a half ago in the spoil piles outside the Aurora Fossil Museum. I was wondering if anyone could help me identify it? I think it might be a mako tooth (Isurus oxyrinchus?). Also, does anyone know why one side of the root is much smaller than the other? Is that damage? Or maybe due to jaw position? Thanks for your help.
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