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Previously, the oldest record of dinosaurs was from Brazil and Argentina and dated back to the mid-late Carnian stage, about 233.23 to 231.4 million years ago. Nyasasaurus comes from a deposit conventionally considered Anisian in age, meaning that it would predate other early dinosaurs by about 12 million years. [ 1 ]
In 1903, geologist William Hamilton Ferguson was mapping the rocky coastal outcrops a few kilometres west of Inverloch and uncovered the first dinosaur fossil ever discovered in Australia. [3] 75 years later, the exploration and excavation of the Dinosaur Cove site was conducted by teams of volunteers overseen by Tom Rich and Patricia Rich.
Researchers are now proposing a surprising location for the birthplace of dinosaurs, based on the locations of the currently oldest-known dinosaur fossils, the evolutionary relationships among ...
The Sundance Formation is a western North American sequence of Middle Jurassic to Upper Jurassic age [1] Dating from the Bathonian to the Oxfordian, around 168-157 Ma, It is up to 100 metres thick [2] and consists of marine shale, sandy shale, sandstone, and limestone deposited in the Sundance Sea, an inland sea that covered large parts of western North America during the Middle and early Late ...
The study found that the majority of the fossil footprints were formed by theropod dinosaurs, which were characterized by their three toes and hollow bones. A few other fossils were likely created ...
A rare dinosaur bone bed containing 115-million-year-old fossils has been unearthed in Maryland, officials and experts say. During a dig at Prince George’s County’s Dinosaur Park in Laurel in ...
The oldest dinosaurs in the world are from here and nearby in Argentina (like the Eoraptor), which suggests that the first dinosaurs may have originated in the area. In 2004, Luciano A. Leal, Sergio A. K. Azevodo, Alexander W. A. Kellner, and Átila A. S. da Rosa described Unaysaurus tolentinoi as a new genus and species on the basis of the ...
Florida has a very rich fossil record spanning from the Eocene to recent times. Florida fossils are often very well preserved. [1] The oldest known fossils in Florida date back to the Eocene. At this time Florida was covered in a sea home to a variety of marine invertebrates and the primitive whales, such as Basilosaurus.