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The private sale of fossils has attracted criticism from paleontologists, as it presents an obstacle to fossils being publicly accessible to research. [2] Most countries where relatively complete dinosaur specimens are commonly found have laws against the export of fossils. The United States allows the sale of specimens collected on private ...
Mesosaurus (meaning "middle lizard") is an extinct genus of reptile from the Early Permian of southern Africa and South America. Along with it, the genera Brazilosaurus and Stereosternum , it is a member of the family Mesosauridae and the order Mesosauria .
Fossil of a South American Mesosaur. The study of Laurin and Reisz (1995) was the second major phylogenetic analysis of amniotes. [18] Like Gauthier et al., Laurin and Reisz used Reptilia as a crown group and placed mesosaurs outside the group.
"The sale of Sue was a turning point, I think, [for] the commercial sale of fossils," Spencer Lucas, a curator of paleontology at the New Mexico Museum of Natural History and Science in ...
Three dinosaur fossils from the Jurassic period will go under the hammer at a London auction on Thursday, with price estimates of millions of dollars. Christie's is offering the skeletons of an ...
This list of fossil sites is a worldwide list of localities known well for the presence of fossils. Some entries in this list are notable for a single, unique find, while others are notable for the large number of fossils found there.
Fossil in the Royal Ontario Museum. Stereosternum tumidum was discovered by Edward Drinker Cope in 1886, while he was in Brazil and looking over some specimens housed in the Museu Nacional (Rio de Janeiro). When looking at the specimen, he noticed that the characteristics seen in Stereosternum were also seen in Mesosaurus.
The Whitehill Formation has provided a variety of fossil insects, rare flora and Mesosaurus fossils, typical for the Permian of Gondwana. The mesosaurids are preserved as molds filled with gypsum crystals; they are commonly disarticulated. More rarely, casts of mesosaurids are found.
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