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A 69-million-year-old skull found in Antarctica belonged to what scientists say is the oldest known modern bird.. An early relative of the continent’s ducks and geese, it lived off the Antarctic ...
A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today, a new ...
The genus was one of the first Mesozoic marine reptiles known to science—the first fossils of Mosasaurus were found as skulls in a chalk quarry near the Dutch city of Maastricht in the late 18th century, and were initially thought to be crocodiles or whales. One skull discovered around 1780 was famously nicknamed the "great animal of Maastricht".
The animals inhabiting Antarctica at this time would still have had to endure long periods of darkness during the winter, much like in modern-day Antarctica. [18] Despite being found in marine sediment, Antarctopelta, like all ankylosaurs, lived on land. Other ankylosaurs have also been found in marine sediments, likely as a result of carcasses ...
A desmostylian skull has an elongated and broadened rostrum, with the nasal opening located slightly dorsally. The zygomatic arches are prominent (behind the eyes), the paroccipital processes elongated (downward-pointing processes behind the jaw-joints), and the epitympanic sinuses open into the temporal fossae (cavities above the ear holes).
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[4] [1] [5] D. pusillus, known from a pair of minuscule skulls found in Texas and stored at the Palaeontological Museum of Munich, is a more controversial species. The skulls are distinctive compared to adult Diplocaulus specimens from other species, and some early sources have doubted their referral to the genus.
The critter’s robust skull had additional bones and elements that have likely disappeared with evolution, and its elongated snout paired with a short region of the skull behind the eyes was ...