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Mesosaurus was significant in providing evidence for the theory of continental drift, because its remains were found in southern Africa, Whitehill Formation, and eastern South America (Melo Formation, Uruguay and Irati Formation, Brazil), two widely separated regions.
Mesosaurs were traditionally classified as anapsids because they were thought to have lacked temporal fenestrae. However, the occurrence of fenestrae in amniotes has been recognized a highly variable feature within the group for many years prior to their discovery in Mesosaurus ; many anapsids such as Candelaria , Bolosaurus , and ...
[9] [3] [4] Stereosternum, including some fossils of Brazilosaurus, are found in the limestone deposits of the São Paulo area of Brazil and in the Kalahari Karoo Basin, where the limestone was deposited in more shallow waters than the Mesosaurus-bearing black shales of both the Irati and Whitehill Formations. Within the limestone, there is ...
The fossils include unique species of fish that had never been found in the area before. The discovery is reshaping views on California geology with the possibility of extinct islands.
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.
A fossil preparator handles fossils found in Petrified Forest National Park at the museum's demonstration lab. Visitors are not allowed to take fossils from the park.
San Pedro High School discovered a deposit of marine fossils on campus in 2022 and began collaborating with local paleontologists to uncover secrets from the Palos Verdes Peninsula's geological past.
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.