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Re: Kulindadromeus, basal ornithischian from Siberia with both feathers and scales
>From the Supplementary Material (downloadable for free);
Based on comparisons of the paleoentomological and the microfaunal
contents with the Glushkovo Formation in the Unda-Daya Depression, the
Ukureyskaya Formation has been dated as Late Jurassic – Early
Cretaceous (29, 30). However, recent K-Ar dating suggests a slightly
older age: the entire Ukureyskaya Formation ranges between 169 and 144
Ma (29), corresponding to a Bajocian-Tithonian age (Middle to Late
It's a pretty wide span of time....
Also, additional videos:
First video (in English)
4 videos in French (posted last week it appears)
On Thu, Jul 24, 2014 at 12:01 PM, Will Baird <firstname.lastname@example.org> wrote:
> Is the geochronology of the specimen better constrained than middle/late
> I was looking at the paper and didnt see anything other than that, but
> perhaps I'm blind?
> On Thu, Jul 24, 2014 at 11:57 AM, Ben Creisler <email@example.com> wrote:
>> Ben Creisler
>> Some additional material about the find:
>> Video interviews with Pascal Godefroit:
>> News and blog items:
>> On Thu, Jul 24, 2014 at 11:17 AM, Ben Creisler <firstname.lastname@example.org>
>> > Ben Creisler
>> > email@example.com
>> > 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
>> > http://www.sciencemag.org/content/345/6195/451
>> > 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.
>> > News story:
>> > http://news.nationalgeographic.com/news/2014/07/140724-feathered-siberia-dinosaur-scales-science/