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Re: Kulindadromeus, basal ornithischian from Siberia with both feathers and scales



Ben Creisler
bcreisler@gmail.com

>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
Jurassic) (31).


It's a pretty wide span of time....

********
Also, additional videos:

First video (in English)
https://www.youtube.com/watch?v=BpoLtynCRU0&list=PL-ZCpJWRnAyVIpCNXd9c6remg--yJP-bh&index=6


4 videos in French (posted last week it appears)

https://www.youtube.com/user/Naturalsciences/videos



On Thu, Jul 24, 2014 at 12:01 PM, Will Baird <anzhalyu@gmail.com> wrote:
> Is the geochronology of the specimen better constrained than middle/late
> jurassic?
>
> 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 <bcreisler@gmail.com> wrote:
>>
>> Ben Creisler
>> bcreisler@gmail.com
>>
>> Some additional material about the find:
>>
>> Video interviews with Pascal Godefroit:
>>
>>
>> https://www.youtube.com/watch?v=jgWtD0qcydU
>>
>> https://www.youtube.com/watch?v=PlE4rz6Pil8
>>
>> https://www.youtube.com/watch?v=RpX6lSC7Abw
>>
>> ***
>>
>> News and blog items:
>>
>>
>> http://www.theguardian.com/science/lost-worlds/2014/jul/24/kulindadromeus-feathers-dinosaur-birds-evolution-siberia-russia
>>
>> http://archosaurmusings.wordpress.com/2014/07/24/kulindadromeus-images/
>>
>>
>> http://news.sciencemag.org/evolution/2014/07/earliest-dinosaurs-may-have-sported-feathers
>>
>>
>> http://www.iflscience.com/plants-and-animals/newly-discovered-fossils-hint-all-dinosaurs-had-feathers
>>
>>
>> On Thu, Jul 24, 2014 at 11:17 AM, Ben Creisler <bcreisler@gmail.com>
>> wrote:
>> > Ben Creisler
>> > bcreisler@gmail.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/
>
>