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Found 26 results

  1. Dinosaur Bone Fossil from Madagascar

    Hi, guys, fossils from Madagascar again. Recently I found out that lots of rocks claimed to be dinosaur bone fossils are imported from Madagascar to China and they are polished to make ash trays or other utensils. To me, this destroys the scientific value of the fossils. I have attached photos of some of the unpolished fossils. Are they really dinosaur bones? By the way, I love this forum, and you guys are really helpful and have a lot of expertise.
  2. Hi, I got a few chunks of dinosaur bones about 10-30cm long and 20-30cm wide. I used a Geiger counter to check for their radioactivity. The readings ranged from 0.28 usv/hr to 1.9 usv/hr. For those with 1.9 usv/hr, should I be concerned about the potential risk to my health if I put them on display in my living room?
  3. MISC DINOSAUR BONE A.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Dinosaur Bone Fragment - with Polished End SITE LOCATION: Unknown TIME PERIOD: Probably Cretaceous. (from 75 to 65 million years ago) Dinosaurs are a diverse group of reptiles of the clade Dinosauria that first appeared during the Triassic period. Although the exact origin and timing of the evolution of dinosaurs is the subject of active research, the current scientific consensus places their origin between 231 and 243 million years ago. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201 million years ago. Their dominance continued through the Jurassic and Cretaceous periods and ended when the Cretaceous–Paleogene extinction event led to the extinction of most dinosaur groups 66 million years ago. The fossil record indicates that birds are modern feathered dinosaurs, having evolved from theropod ancestors during the Jurassic Period. As such, birds were the only dinosaur lineage to survive the mass extinction event. Notice the marrow structure in the polised end! Kingdom: Animalia Phylum: Chordata Class: Dinosauriformes Order: Dinosauria
  4. MISC DINOSAUR BONE A.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Dinosaur Bone Fragment - with Polished End SITE LOCATION: Unknown TIME PERIOD: Probably Cretaceous. (from 75 to 65 million years ago) Dinosaurs are a diverse group of reptiles of the clade Dinosauria that first appeared during the Triassic period. Although the exact origin and timing of the evolution of dinosaurs is the subject of active research, the current scientific consensus places their origin between 231 and 243 million years ago. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201 million years ago. Their dominance continued through the Jurassic and Cretaceous periods and ended when the Cretaceous–Paleogene extinction event led to the extinction of most dinosaur groups 66 million years ago. The fossil record indicates that birds are modern feathered dinosaurs, having evolved from theropod ancestors during the Jurassic Period. As such, birds were the only dinosaur lineage to survive the mass extinction event. Notice the marrow structure in the polised end! Kingdom: Animalia Phylum: Chordata Class: Dinosauriformes Order: Dinosauria
  5. Any Idea What These Are?

    My 8 year old son is turning into quite the dinosaur enthusiast and has begun to collect fossils. We are slowly learning the risks and joys of collecting. We found these three over the weekend. Any ideas what they may be? I was told the sandy orange bone may or may not be a dinosaur bone and the darker ones are from the Ice Age but they were not sure from which Ice Age animal.
  6. I found this in online,the headline said it a dinosaur bone,its really look gem like and smoth surface...may it be a real dinosaur bone???
  7. Big Fossil Vertebrae?

    I found what I think is a large vertebrae in north Jackson county ky. I think the stone looked like marine deposits in the area I found it in. Is this a vertebrae? I think I can make out cortex bone on the edges in some places, artery holes, trabeculae under the cortex and a large area in the center of the bone for a disc. If so what animal did it come from? Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr Fossil. Vertebrae? by Zapins, on Flickr
  8. Well, I figured I might show what I've been up to, but I am unsure as to where this topic fits, so please do move this thread to a more appropriate forum if this subject is not fit for this one, Admins After my recent trip to Australia to see my fiancè and fellow forum member Ash, I had a fair bit of petrified wood laying around. The picture below only shows a small portion of the amount Ash and I collected, but I decided to take and cut the orange chunk in the left of the photo into slabs. I had just recently learned that the local rock shop in town actually had a "cabbing" machine, and in exchange for a few slices, I could use them for free to make cabochons of my own. So after shaping a few up onto "dop sticks", I did just that! I was rather surprised how different they turned out-how stunning compared to the original inconspicuous chunk of wood they originally came from! I also cabbed a few pieces of dinosaur bone the shop had laying around; you can see the end results in the photos below They're not perfect (I am a beginner), but just thought I would share how something that is often passed over in collecting can turn out stunning if you put a little work in The first single cab photo you see is the first one I ever did, and I have just recently had it wire-wrapped in sterling silver (the last photo). However, the last photo doesn't show the same quality as the first does due to poor lighting. Nonetheless, it's been a fun hobby to keep me occupied during the winter months I hope you enjoyed this brief update!
  9. A small, Dinosaur bone

    or A small Dinosaur, bone. The following are microscope photos of three sections of a small piece of Dinosaur bone. The thin section slides were made using a Hi-Tech Diamond flat lap grinding machine. The first photo is the actual bone segment, approximately 22mm long and 12mm in cross section. The next three photos are full scans of the three cross section followed by a few selected sections. I used two microscopes, a Labomed LB-592 Polarizing and a Zeiss Stemi 305edu with a homemade polarizing kit. Additional Dinosaur bone images Crossed Polars Stage was rotated 45° Plane light, stereo microscope Same section with the Darkfield stop in place.
  10. I didn't know where to post these wild colors
  11. What In The Hell Creek Is It?

    Just got back from a dig in the Hell Creek formation. Everything from Hadrosaur, ray teeth, champsosaur verts, gar scales, turtle, ceratopsian frill and theropod teeth were in the immediate area of this bone. We will be heading to the lab in the morning to begin prep, but I was just wondering if any of you seasoned experts might have any idea what this is. Everything was pretty jumbled and most of the bone in the area we were digging was pretty degraded (more like coffee grounds), but this was one of the few in decent shape that seemed to be diagnostic. I will post better pics once it is prepped.
  12. Dinosaur Bone?

    Could I have help to I'd this please? Some better pictures.....not polished just water on it.
  13. My wife spotted this on the side of the road as we were leaving White Mound in Nebo Oklahoma. It may be surrounded by shell because it is very brittle and flakes apart. The bone itself is about 15in long and pretty strong. It weighs maybe 10- 15lbs. Any ideas of what it would be? An uncle of mine believes its a jaw bone.h
  14. Dino & reptile Bone

    From the album My Cabinet of Curiosity & Geological Art

    Assortment of dinosaur and reptile bones with agatized gem bone slabs and pieces
  15. Opalised Dinosaur Vertebra (Photo 1)

    From the album Opalised Fossils

    Name: Opalised Dinosaur (Caudal?) Vertebra Age: 110 million years old Locality: Lightning Ridge, NSW, Australia Formation: Griman Creek Formation Length: 16mm end to end Notes: This is an opalised dinosaur vertebra from Australia. I originally bought it as an opalised 'reptile' vertebra but it's ID as being a dinosaur vertebra was confirmed by one of the leading experts on the opalised fossils of Lightning Ridge. It is likely a juvenile ornithopod or theropod vertebral centrum, missing the tall neural arch. It is semi-transparent when held up to a strong light and is an exceptionally rare specimen. So far it is the only vertebrate fossil in my opalised fossils collection but I hope I am able to acquire more soon. Specimens like this very rarely come up for sale as most of them end up in museum collections due to their rarity and scientific value.
  16. Theropod Bone?

    Ok, i have a dinosaur bone that is hollow. I am wondering whether or not it is a theropod bone or not, as theropods had hollow bones. Can somebody please identify it for me? I found this bone in the Dinosaur Park Formation of southern Alberta, right outside of Dinosaur Provincial Park
  17. Dinosaur Bone (Utah)

    From the album Dinosaur Fossils collection

    Dinosaur Bone unknown specie & genus Age: Jurassic (136-190 MYA) Locality: Utah
  18. Dinosaur Bone Arizona (Polished Side)

    From the album Dinosaur Fossils collection

    Dinosaur Bone chunk (unidentified) Age: Jurassic Locality: Arizona (possibly, Morrison formation)
  19. Small Agatized Dinosaur Bone (Top View)

    From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
  20. Small Agatized Dinosaur Bone (Backside)

    From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
  21. From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
  22. From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
  23. Large Utah Dinosaur Bone (Side Texture)

    From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
  24. Large Utah Dinosaur Bone (Top Side)

    From the album Dinosaur Fossils collection

    Dinosaur bone chunk (unidentified) Age: Jurassic (136-190 MYA) Locality: Utah
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