Search results
Results From The WOW.Com Content Network
Ankylosaurus [nb 1] is a genus of armored dinosaur. Its fossils have been found in geological formations dating to the very end of the Cretaceous Period, about 68–66 million years ago, in western North America, making it among the last of the non-avian dinosaurs. It was named by Barnum Brown in 1908; it is monotypic, containing only A ...
Skull of first known ankylosaurid specimen, belonging to Ankylosaurus. Barnum Brown and Peter Kaisen discovered the first ankylosaurid genus, Ankylosaurus, in 1906 in the Hell Creek Beds in Montana. [4] The fossil material they found was a portion of the skull, two teeth, some vertebrae, a distorted scapula, ribs and more than thirty osteoderms ...
McCrea, Lockley, and Meyer observed that by this point in the history of ankylosaur research, ankylosaurs track fossils had been reported from North America, South America, Asia, and Europe. Most of these trackways were preserved in moist floodplain habitats where plant life was abundant. [7]
[5] [10] [11] However, as historically even these primitive forms were considered ankylosaurs if they were more derived than Stegosaurus, Madzia and colleagues considered a redefinition of Ankylosauria to be undesirable, instead preferring to abandon Ankylosauromorpha as a same-definition junior synonym of Ankylosauria.
The most complete hadrosaurid dinosaur ever found, an Edmontosaurus, was retrieved in 2000 from the Hell Creek Formation and widely publicized in a National Geographic documentary aired in December 2007. A few bird, mammal, and pterosaur fossils have also been 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.
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.
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.