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Found 11 results

  1. Gramps

    ID help: Deltodus tooth?

    I know very little about shark teeth. I found this one a while back in Pennsylvanian (Desmoinesian) shale in northeastern Oklahoma. I am speculating this may be deltodus only because I see a nearly identical tooth labeled as deltodus on another website. The fossil is very thin (too thin to photograph the edges). Besides confirming the taxonomy, can anyone tell me which surface of the tooth is shown in Side A? Finally, would you say Side B is mainly matrix (other than the edges)? I think matrix is showing through the cracks on Side A, and that may be the only thing holding the fossil together.
  2. I've been away on business in Florida and had a chance on Sunday to visit the Florida Museum of Natural History. Actually, I had only enough time to visit the gift shop and check to see if they were selling those mammoth Christmas cards (mammoth skeleton on the front - the cards themselves are not gigantic) they have sold in the past. They had them and I was just going to buy a bunch of those but I looked around the shop for extra Christmas presents when I spotted a new publication for sale: Boyd, B. M. 2016 Fossil sharks and rays of Gainesville creeks Alachua County, Flori
  3. doushantuo

    get your teeth into this

    Development and Evolution of Dentition Pattern and Tooth Order in the Skates And Rays (Batoidea; Chondrichthyes) Charlie J. Underwood,*, Zerina Johanson,, Monique Welten,, Brian Metscher,Liam J. Rasch,, Gareth J. Fraser,, Moya Meredith Smith Citation: Underwood CJ, Johanson Z, Welten M, Metscher B, Rasch LJ, Fraser GJ, et al. (2015) Development and Evolution of Dentition Pattern and Tooth Order in the Skates And Rays (Batoidea; Chondrichthyes). PLoS ONE 10(4): e0122553. https://doi.org/10.1371/journal.pone.0122553 given the collective NOUS and expertise of the authors:DO NOT
  4. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since March 22, 2018
  5. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since May 9, 2018.
  6. awesom 11,3 Mb I just received a postcard from my retinae:"enjoying the Bahamas,won't be back anytime soon,you &*&(((()_+&@W" "And you may tell yourself :"This is not my beautiful fossil""
  7. After this horrendous attempt at a triple pun,things can only deteriorate,right? The list of species in the tags i have kept to a bare bones minimum,for clarity's sake i MIGHT not have posted this,but it figures tooth rows. Shark cognoscendi prolly already have this one(and the others by Bass)I'm sure. SO,no need to post those others orrep38a.pdf
  8. Came across this paper published last year, apologies if it's already posted. Located in the Falcon State of Venezuela the Urumaco formation provides a good look at the Sawfish and other elasmobranch Assemblages of the South Caribbean in the late Miocene, in an area that gets very little notoriety. (A) Sharpnose shark Rhizoprionodon sp., (B) Hammerhead shark Sphyrna cf. zygaena, (C) Bull shark Carcharhinus leucas, (D) “Big tooth” Carcharocles megalodon, (E) Tiger shark Galeocerdo cuvier, (F) Spotted eagle ray Aetobatus cf. narinari, (G) Eagle rayMyliobatis sp., (H) Guitarfish
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