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Found 37 results

  1. Hey all, Thought I would share this blog post that has a comprehensive review of all papers in marine mammal paleontology published in 2020. Enjoy! https://coastalpaleo.blogspot.com/2020/12/2020-in-review-advances-in-marine.html
  2. Sirenia.jpg

    I 3d-printed some skull-replicas of 3 sirenia genera: West Indian Manatee (Trichechus manatus) Padific Dugong (Dugong dugon) and Steller's Sea-cow (Hydrodamalis gigas). I was really amazed about the fact that, despite the immense disparity in body-size between the extinct sea-cow and its extant relatives, their heads/crania were remarkably similar to each other in overall dimensions. The sea-cow skull was larger, but not by as much as one would think.
  3. Hello, I'm a newbie. I'm looking for advice on what product to place on the fossils in the boulder below. I want to stabilize them in the matrix before I do any more removal. The photo with the (5) had a great rib in it but crumbled upon getting the rock into my truck. Fossils are exposed on many sides. As I began removing matrix with my Dremel 290, more fossils were uncovered. I read many articles and posts about solution adhesives. I want to keep it simple. I found premade Paraloid B-72 Glue, and the more complicated acetone and b-72, b-76 pellets. I may try and use a filler on my rib (1) that has a crack. This has been a great COVID hobby for me. My science students will get fossil remnants from me as student of the week rewards. Suggestions welcomed.
  4. 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
  5. Dugong & ?

    Its been awhile. Ran over to the big sand pit for a few the other day and came up with these certs and one other. Fell from on high so really tough to see what layer they came from.
  6. Dugong rib with signs of predation

    This is a dugong rib bone. It appears to have cuts slicing cleanly through growth rings before fossilization.
  7. Unidentified Rib Fossil Found in Florida Gulf

    This rib bone fragment was found on a Florida beach in Englewood. I believe it belongs to a Dugong, but it’s not solid black like most online examples. It’s roughly 3 inches long and 1 inch wide. Can anyone help affirm my theory or provide evidence to the contrary? Thank you.
  8. I found this fossil in Englewood, Flordia, on the beach along with some fossilized shark teeth. I think it’s a Dugong rib bone fragment.
  9. Hi all - I did not have time in January when I normally write these up, but thanks to Covid quarantine I managed to get some time last month and write up a comprehensive review on my blog of every single 2019 paper in marine mammal paleontology. Enjoy! https://coastalpaleo.blogspot.com/2020/05/2019-in-review-advances-in-marine.html
  10. Possible Dugong rib

    Hello, I found what appears to be a fossil in Peace River FL today. It is extremely dense so I am thinking it could be a dugong rib fragment. Any thoughts?
  11. Hi Bone Gang, So awhile back someone posted a picture of an unknown that looked similar to alot of bone pieces I have and that made me go back and take a look at a bunch of them even closer and a couple questions arose about one particular bone scrap. I was looking around for answers about it and ran into this recent book title and am considering getting it...may check it out thru one of the libraries....looks fascinating.. 1) Does anyone happen to have it/have used it and would recommend it? Atlas of Taphonomic Identifications: 1001+ Images of Fossil and Recent Mammal Bone Modification (Vertebrate Paleobiology and Paleoanthropology) 1st ed. 2016 Edition by Yolanda Fernandez-Jalvo (Author), Peter Andrews (Author) So here's a quick pic of some of the types of plain old fairly small chunks of bone that are fairly common from around here in central Florida--Miocene/Pliocene/Pleistocene in age. The Florida folks see em quite a bit. Most are very dense and darker in color from our creeks/rivers ranging from brown/black to a creamy white at rarer inland locales and are heavily mineralized. Some show minor porosity and some have very distinctive longitudinal cracking and others very polished and smooth. Many are dugong rib fragments, probably at least the left 2 in this picture above and some may be from other land critters and be other skeletal parts. Occasionally you see bite marks and borings. There are other hunting areas where the bone fragment finds are more exclusively marine and its common to find other thinner flatter fragments that have more and wider areas of porous bone on the interiors, probably whale or other marine mammals. Here are 2 specimens showing their exterior weathering: Some longitudinal cracks and and an irregular rippling/undulating/uneven surface Some longitudinal cracks and exfoliation.. Here's the one specimen below that I am particularly curious about and looking for your thoughts as it exhibits a number of different features all on the same bone. Seems to pretty water worn and smooth overall, exfoliating a bit but does show some internal details in various places. Thinking it might be a dugong fragment although it doesnt show any characteristic banding in the end view and in one area seems very spongy/porous. Couple of general views showing the longitudinal grooves. A closeup of the dendritic like grooves/structures---maybe the vascular system between the pores? You can see some minor cracks/exfoliation also occuring in spots in the top and lower left.. A 2nd closeup showing a couple of grooves that seem to loop and overlap? Top back edge views showing a rounded now polished cancellous area. A back view showing a .5cm outer layer that has been broken away showing some internal porosity. An end view showing that same porosity. 2) I'm mostly wondering about the longitudinal grooves/lines and whether they are simply water worn/weathering of cracks in the bones or perhaps a polishing of the internal vascular bone feature, some bioerosion activity or maybe both or something else? 3) What do you think about those little grooves with the possible loop or two? Bioerosion? Welcome all explanations/ideas...maybe some simple weathering that I'm just trying to make more complex and am wondering about out loud! Thanks! Regards, Chris
  12. Dugong or Manatee

    This is an excellent find, but I am unsure how to identify it and I also wanted to share the moment. Why excellent? Any fossil tooth with complete roots is rare and any Manatee or Dugong molar in any shape is rare for me. In 10 years , I have found 5 or 6 of these in Peace River hunting. So my question: Can a Trichechus manatus molar be differentiated from a Metaxytherium floridanum molar and , if so, which is this fossil? Details : Crown height - 45 mm, Crown length - 26 mm; Found in Peace River Watershed. Thanks for all comments and suggestions!!!
  13. Found these fossils at a construction site in Venice Florida. Can I get some help identifying? It would be much appreciated. As a side note I found the huge Megalodon there as well. I think one is an alligator scale? One is a joint of some sort? And one is the tail bone of a dugong? And one is a jawbone with teeth ( feline )? What say all? thanks in advance
  14. Dugong Bone Question

    I collected this Dugong bone near Sarasota, Florida today and was wondering what would make this indentation/ boring?
  15. Hey TFF Members! Back with another video. Cris and I recently headed to one of our creek sites with a very limited time to hunt, so the only thing to do.... dig like maniacs for a couple hours! Given the amount of time we had, we didn't do bad at all! I am in love with the beautiful blue Mako I found. I also found an awesome Dugong skull cap. These short spontaneous trips are incredibly fun. Give it a watch when you get a chance!
  16. Calvert Cliffs Bones ID Help

    Hi all, I found these bones at Bayfront Park/Brownies Beach on my most recent trip. The formation is the Calvert Formation, Miocene, approximately 18-22 million years old. Here are my best guesses: #1: Piece of cetacean rib bone #2: Some part of cetacean flipper/hand? #3: Cetacean digit/phalange #4: Piece of sirenian (dugong) rib bone If there are any bone experts willing to lend a hand in these identifications, I would very much appreciate it. Even if you're not an expert, please let me know if you have a better idea about what these truly are. Thanks in advance.
  17. Need help identifying bone

    I'm told most bones found on Myrtle Beach are dugong, but I can't quite place this bone on a chart I have of the dugong skeleton. Ideas? Thanks! Paula
  18. Found on Myrtle Beach. I'm told most bones here would be dugong But the coloring and look of this one is strange Can't decide if this is an axis vertebra, or just a rock with a borehole in it. Thoughts?
  19. Is this a dugong vertebra?

    Ok now that I'm getting the hang of this site, I'm trying to do more of my own research. And my amateur sleuthing wants to say this is a dugong vertebra - even though it seems a bit larger than other things I've seen. How am I doing? Thanks! (Found on Myrtle Beach today.)
  20. Hi everyone. My first time posting. Just found this one today at Myrtle Beach. It looks like a bone to me. Ideas? And if it is a bone, any thoughts on what it could be? I'm including photos with and without flash. Thank you! Paula
  21. Hello! I live in Ocala. Whenever my community starts constructing a new neighborhood, I go and search through the piles of limestone that they bring in to make the roadbed. It usually is different than the “local” softer chalkier limestone that is prevalent right here. This batch has a lot of beautiful brown and blue chert, the usual Florida fossils , some coated in druzy crystals (?) . There have been a few that I found last weekend that I cannot definitely identify. I appreciate any help, and any info on what area this limestone might be from. There are 3 photos here plus 2 more in the first reply. Thanks! Margaret
  22. Dugong manatee dilemma

    During my field works at Central Hispaniola I have been finding what appear to be manatees/dugongs ribs. As a rookie in the field of paleontology, which I am passionate about, could you help me determine if these dozens of pieces collected, in an elongated form and that are pinching at the end, as ribs of manatee/dugongs correspond or not to these vertebrates? ? They are dense and have small blackish dots like some mollusk fossils that I have also collected. Thanks, infinite thanks for helping me with this dilemma that fascinates me at the same time !!
  23. Help me ID this tooth please

    I found this tooth a year ago and have searched up info online to try to ID it but it was never a perfect match.. I'm thinking a dugong tooth but I have no idea. Thanks!
  24. But the water was still pretty cold lol, not too shabby. Got the day off, doing something career-wise in the morning; so why not dig in the afternoon.. Saw a few dead tilapia probably from the recent freeze; one was franticly swimming about where water met land, no idear why. Anyways, started out not getting much gravel at all (but finding just enough to stay persistent), by the end kicking myself in the behind for not finding the gravel motherload sooner. Oh well, leaves some for the rest I suppose (for now..). Not too much luck w/ the small snaggles I was after again, would think they'd be super abundant for how common the big-ens are but they ain't lol, again just pesky small grey shark teeth seem to be. The few small hemi lowers I do have are looking better every moment, no idea why they are not more common & I have a good eye for it.. Some I kept only to donate to the upcoming fossil fest (but some of the smaller complete ones I'm keeping to expand the collection). Know I won't be lugging the 1/4" mesh PVC sifter to the 1/27 group hunt, but nice to use it every once in a while for more variety. Couple horse teeth, few nice little 'cuda teeth. One big stingray barb frag, must have been pretty long when whole. One very cool complete hemi, think it's a lower. Oh & a bone that really caught my attention ended up being a dugong skullcap! Think the longest one (top, middle) might be whale rib(?) No idea what the big spiral one (on the right) is but my gut says invert Also been wondering what these are. Usually find smaller ones, seem like some kind of molar & no idea what this bone is, please & thanks
  25. A good first day Peace River

    This is late for me but I have been distracted with other issues. Basically on my 1st real hunting day, I had low expectations. A lot of prospecting, deeper water, etc. But this was a good day. Lots of small quality shark teeth, 3 decent lower hemis and a ALMOST unbroken Meg. I may go back to this spot. I thought these are modern wild pig and broken capybara incisor. But my find of the day was almost fantastic As it flipped into the sieve , I thought whale or tusk, but it turns out to be bone. About the best complete dugong rib I have ever found and it had to be a very small animal. So analysis requested. Is it complete? Another photo of the "end" Thanks to all. Jack