![]() In many countries it is illegal to dig up and sell dinosaur bones without permission, for example the United States, where it is illegal to dig for bones on public land without a permit from the Secretary of the Interior. Controversy ĭue to the rarity and irreplaceability of dinosaur bones, the acquisition, ownership and use of gembone is a contentious topic. Aside from their use in jewelry, scientists can use this type of specimen to perform research into the anatomic structure of ancient species. Many minerals can be found in gembone including agate, hematite, iron, pyrite, jasper, marcasite, quartz or other crystal. It is one of five gemstones created from organisms (the others being pearl, ammolite, amber and jet). The other fragmentary specimens though partially preserved might probably be parts of limb bones of a sauropod dinosaur.Gembone, also known as gem bone, agatized dinosaur bone, or dinogem, is mineralized bone, often dinosaur bone, which occurs when minerals from groundwater are deposited within the bones. “The record of the sauropod assemblage of probable titanosaurian affinity from Meghalaya extends the distribution and diversity of vertebrates in the Late Cretaceous of India,” he noted.Īn incomplete chevron of caudal vertebrae and also cervical vertebra have also been reconstructed from a few recovered bone specimens.Īlso read | 'Oxygen conspiracy’: SFJ calls Punjab Covid patients with promise of cash and O2 “The abundance of bones recovered during the present work and especially the finding of few limb bones and vertebrae having taxonomic characters of titanosauriform clade are unique,” Roy said. Robustness of the bone, the difference in curvature in the lateral margins and the proximal border being relatively straight, are some of the morphological characters that hint at the titanosaurid affinity, according to the researchers.Īnother incomplete limb bone measuring 45cm in length is also comparable with the limb bones of titanosauriform clade, they said. It is comparable with the average humerus length of titanosaurids. The largest one is a partially preserved limb bone of 55 centimetres (cm) long. Therefore, only three of the best-preserved ones could be studied. Taxonomic identification up to genus level is difficult due to poorly preserved, incomplete, fragmentary nature of the bones and most of the recovered bones are partially petrified and partially replaced, they said.Īlso read | Foreign Covid aid reached on April 25. More than twenty-five disarticulated, mostly fragmentary bone specimens were recovered, which are of different sizes and occur as isolated specimens but some of them were found in close proximity to each other, the researchers said. The bone fragments were collected from poorly sorted, purplish to greenish very coarse-grained arkosic sandstone interlaid with pebbly beds. He, however, noted that the conclusions are drawn from preliminary studies and detailed work is going on. He noted that the best-preserved fossils are limb bones, adding the type of curvature, development of lateral and proximal margins of the partially preserved bone are indicative of it being a humerus bone.Īlso read | IIT, IIMs will better distribute oxygen: Delhi HC raps Centre, asks about Army deployment The fossils are presumably of Late Cretaceous, about 100 million years ago," Roy told PTI. The last visit of the team was in February 2021. "The present find of bones is during fieldwork in.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |