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  2. Shark tooth for ID

    Well thank you hokitech96
  3. hadrosaurid,2.0

    morphological_innovation_and_the_evolution_of_hadrosaurid_dinosaurs.pdf Morphological innovation and the evolution of hadrosaurid dinosaurs Thomas L. Stubbs , Michael J. Benton, Armin Elsler , and Albert Prieto-Márquez Paleobiology, 45(2), 2019, pp. 347–362 DOI: 10.1017/pab.2019.9 Given the source publication,the emphasis is perhaps not where you'd expect it to be
  4. Shark tooth for ID

    Thanks for the great feedback! Very educational! @Ancient Bones Your tooth is awesome
  5. What are the hardest dinosaur teeth to obtain?

    I agree with @Troodon any tooth, any fossil that is not in my collection.
  6. Shark tooth for ID

    Thank you very much Marco ☺️
  7. Wyoming baculite

    The minerals might be laumontite,heulandite or clinoptilolite.
  8. October 2019 - Finds of the Month Entries

    I'd say it was definitely worth going back!
  9. Wish is to find a tooth that is not in my collection....will be happy with any since you cannot predict what is found or comes available.
  10. Thank you everyone. I guess the question is what is “your” wish list for teeth?!
  11. Definitely in my 25 years of collecting only have two nice ones from the Morrison. I am fortunate to have a few from Portugal, Russia and one from France.
  12. Happy National Fossil Day

    @Fossildude19 @Kane @Ludwigia @RJB Sorry I think you misread my post I asked to see some jaw dropping fossil Thank you all they are incredibly beautiful specimens.
  13. Today
  14. Shark tooth for ID

    Look at the serration size change toward the tip of your tooth and serration shape. Also although damaged somewhat, look at where the crown enamel is versus the root line. Your tooth is a Carcharhinus sp. tooth. Marco Sr.
  15. Hi all, It's been a while since I posted a trip report but I was feeling like posting last evening as well as testing out my new photography rig. I moved houses two years ago and lost my lovely brick wall backdrop (the exterior of back of the house) which allowed photography in natural light. The new house is all vinyl siding outside and I have more shade so less opportunity for good sunlit pictures. However, one corner inside the house has a bricked area where a wood burning stove used to be so I have decided to set up some lights there. The pics came out ok so let's proceed with the report. I recently went up to the St. Mary's quarry in Bowmanville, Ontario on a scheduled trip with the local Scarborough club and also stopped off at Arkona while in Canada. I did pretty well at Arkona where I found four Eldredgeops trilobites and two Blastoids among other finds. Nucelocrinus elegans from the Hungry Hollow member of the Widder formation. Sorry, no pics of the Trilobites due to some back spasms but I got these pics of a nice Atactotoechus fruiticosus branch also from the Hungry Hollow Member of the Widder formation. Then I went to the St. Mary's quarry on Sunday where I took a tumble down the rock pile and hurt my ribs. Lucky for me my hard hat took the brunt of the impact my head made with the rocks. With nothing broken and still able to move around, I stayed closer to the ground and found this partial, eroded Isoltelus sp. that is inverted and still shows the Hypostome in place. I also found a plate with Graptolites but that was too heavy to hold and photograph last night. I'll post it tomorrow maybe. Finally, I drove home on Monday and stopped off at a place in New York where some of the Kashong Shale member of the Moscow formation is exposed and found these two surprises. A cephalon of a Dipleura dekayi with some of the shell material eroded away. I think the eye is intact and waiting to see again once some rock is removed. And here is a closeup of the shell on top where you can see the stippled pattern where sensory pits used to be. Lastly I found a pygidium that I am not sure of the genera on. Possibly a Basidechenella sp.? So not a bad trip at all, despite the injury. Good news is that I am healing nicely but still have some soreness and muscle spasms. I'm looking forward to my next trip up in the spring and hopefully will avoid the health scares.
  16. Stegosaurus
  17. Shark tooth for ID

    I wasn't seeing a root at all on the last picture. All I see is a broken tooth with the enamel broken off. If that is actually the root of the tooth, then it is definitely not a Great White.
  18. Happy National Fossil Day

    Didn't even know we had a National Fossil Day? Here goes. RB
  19. Schoharie Creek fossil

    Material from the Schoharie creek in New York is Devonian in age so no Dinosaurs and no Shrimp burrows. You have a Brachiopod in the pic with a ruler, but I am not sure of the genera. Possibly Atrypa as that is very common in the Devonian period. The rest is missing details to really tell too much. Be careful with that acid bath since the fossils may be preserved with Calcite rather than silicified by Quartz. If they are calcitic then the acid will dissolve the fossils as well.
  20. Fossil Coral?

    If it is a fossil it most certainly has been preserved quite nicely!!! RB
  21. Shark tooth for ID

    Sorry but I don’t think so. In the first photo of the post, the root corresponds to less than a quarter of the height of the tooth, while on the last it represents almost half of the height of the tooth (because it is missing a large part of the root). For me, this last tooth doesn’t have the shape of a great white. Coco
  22. ...or want the most!
  23. Wyoming baculite

    My thoughts exactly, as well as the general diagenic nature of shales vs. volcanics in the formation of Zeolite minerals.
  24. Shark tooth for ID

    It looks like the picture in your previous post could be a Great White tooth.
  25. Holmesina Osteoderm

    about half a centimeter at its thickest point.
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