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1Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers Empty Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers Sat Oct 11, 2014 9:52 pm

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Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers S-albersdoerferi-feathers
A particularly well-preserved bushy-tailed fossilized theropod could imply that most of dinosaurs actually had feathers. The dinosaur, named Sciurumimusalbersdoerferi lived 150 million years ago, during the Jurassic period of the Mesozoic era, in what is now Germany.
S. albersdoerferi died in fine-grained sediments, allowing for an almost photographic impression of the filaments that covered its body. There have been other feathered therapods discovered before, inspiring the speculation that most dinosaurs had feathers instead of scales.
Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers S-albersdoerferi-head
The previous fossils belonged to a group known as coelurosaurs, a relative latecomer. It was still an open question whether most theropods were feathers. The new fossil is described in the journal PNAS by lead author and paleontologist Oliver Rauhut, of Germany’s Ludwig Maximilian University.
S. albersdoerferi was significantly more basal in the evolutionary tree of theropods, implying that if it had feathers, so did the rest of the theropods. Thanks to S. albersdoerferi‘s taxonomic significance, and other quadrupedal, beaked dinosaurs, it’s possible that most dinosaurs had a filamentous body covering representing the plesiomorphic state for dinosaurs in general.
Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers S-albersdoerferi-teeth
The feathers of S. albersdoerferi are strikingly beautiful, under different lights. Although S. albersdoerferi is named after a squirrel, it was large and carnivorous. The specimen was a juvenile, at just 28″ inches in length. As an adult, it would have been 20 feet from nose to tail. There are long filaments at the base of its tail, and unlike modern birds, whose feathers are optimized for flight, these feathers were most probably used for insulation.
Dinosaurs Jurassic Bushy-Tailed Fossilized Theropod Could Mean that Most Dinosaurs Had Feathers S-albersdoerferi-tailbase
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