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Kulindadromeus, basal ornithischian from Siberia with both feathers and scales

Ben Creisler

Here's the much anticipated official paper about the "feathered"
ornithischian Kulindadromeus from Siberia. The supplemental material
is free. The nomenclatural issues will be a headache after the Russian
paper a few weeks ago...

Pascal Godefroit, Sofia M. Sinitsa, Danielle Dhouailly, Yuri L.
Bolotsky, Alexander V. Sizov, Maria E. McNamara, Michael J. Benton &
Paul Spagna (2014)
A Jurassic ornithischian dinosaur from Siberia with both feathers and scales.
Science 345( 6195): 451-455
DOI: 10.1126/science.1253351

Middle Jurassic to Early Cretaceous deposits from northeastern China
have yielded varied theropod dinosaurs bearing feathers. Filamentous
integumentary structures have also been described in ornithischian
dinosaurs, but whether these filaments can be regarded as part of the
evolutionary lineage toward feathers remains controversial. Here we
describe a new basal neornithischian dinosaur from the Jurassic of
Siberia with small scales around the distal hindlimb, larger
imbricated scales around the tail, monofilaments around the head and
the thorax, and more complex featherlike structures around the
humerus, the femur, and the tibia. The discovery of these branched
integumentary structures outside theropods suggests that featherlike
structures coexisted with scales and were potentially widespread among
the entire dinosaur clade; feathers may thus have been present in the
earliest dinosaurs.

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