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Topic: Yutyrannus (Read 219 times) previous topic - next topic

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  • socrates1
Yutyrannus
http://www.xinglida.net/pdf/Xu_et_al_2012_Yutyrannus.pdf

"Filamentous integumentary structures are preserved in all three [Yutyrannus]
specimens. Those preserved in ZCDM V5000 are evidently associated
with the posterior caudal vertebrae. As preserved, they are parallel to
each other and form an angle of about 30u with the long axis of the tail.
The filaments are at least 15 cm long. They are too densely packed for it
to be possible to determine whether they are elongate broad filamentous
feathers (EBFFs) like those seen in the therizinosauroid Beipiaosaurus,
slender monofilaments, or compound filamentous structures."

Yutyrannus is often referenced as having feathers. In fact what they had was simply filaments.
  • Last Edit: June 10, 2017, 05:42:52 AM by socrates1

  • socrates1
Re: Yutyrannus
Reply #1
The status of Yutyrannus comes up in regards to this recent published study:
http://rsbl.royalsocietypublishing.org/content/13/6/20170092
Tyrannosauroid integument reveals conflicting patterns of gigantism and feather evolution

"Although filamentous feathers likely represent the plesiomorphic condition for coelurosaurians [7], the majority of dinosaurian integumentary fossils--including the giant sauropodomorphs and most ornithischians--indicate scaly, reptilian-like skin [7].
Filamentous feathers have been described in two tyrannosauroids, both from the Early Cretaceous of China: Dilong paradoxus [8] and Yutyrannus huali, which, at around 9 m in length, approached the size of some Late Cretaceous tyrannosaurids."

"Filamentous integumentary structures are preserved in all three [Yutyrannus] specimens. Those preserved in ZCDM V5000 are evidently associated with the posterior caudal vertebrae. As preserved, they are parallel to each other and form an angle of about 30u with the long axis of the tail. The filaments are at least 15 cm long".

Note that all they claim is that there were "filamentous integumentary structures". In other words, filaments.

  • Last Edit: June 10, 2017, 10:08:01 AM by socrates1

  • socrates1
Yutyrannus
Reply #2
The status of Yutyrannus comes up in regards to this recent published study:
http://rsbl.royalsocietypublishing.org/content/13/6/20170092
Tyrannosauroid integument reveals conflicting patterns of gigantism and feather evolution

"Although filamentous feathers likely represent the plesiomorphic condition for coelurosaurians [7], the majority of dinosaurian integumentary fossils--including the giant sauropodomorphs and most ornithischians--indicate scaly, reptilian-like skin [7].
Filamentous feathers have been described in two tyrannosauroids, both from the Early Cretaceous of China: Dilong paradoxus [8] and Yutyrannus huali, which, at around 9 m in length, approached the size of some Late Cretaceous tyrannosaurids."

"Filamentous integumentary structures are preserved in all three [Yutyrannus] specimens. Those preserved in ZCDM V5000 are evidently associated with the posterior caudal vertebrae. As preserved, they are parallel to each other and form an angle of about 30u with the long axis of the tail. The filaments are at least 15 cm long".

Note that all they claim is that there were "filamentous integumentary structures". In other words, filaments.

  • socrates1
Re: Yutyrannus
Reply #3
This is all I intend to say on this topic.

Re: Yutyrannus
Reply #4
I don't understand.
Love is like a magic penny
 if you hold it tight you won't have any
if you give it away you'll have so many
they'll be rolling all over the floor

  • Doobie Keebler
  • Ridiculous Callipygous
Re: Yutyrannus
Reply #5
"You know what uranium is, right? It's this thing called nuclear weapons. And other things. Like lots of things are done with uranium. Including some bad things. Nobody talks about that."

  • nesb
Re: Yutyrannus
Reply #6
I'm convinced of whatever it is Sock is saying or suggesting

Re: Yutyrannus
Reply #7
This is all I intend to say on this topic.
Pro tip: if you don't want to discuss, don't post in sections titled "discussion".

Re: Yutyrannus
Reply #8
While you were getting your PhD in virology, I got my PhD in truth detection. :wave:  Dave Hawkins

Re: Yutyrannus
Reply #9
This is all I intend to say on this topic.
Pro tip: if you don't want to discuss, don't post in sections titled "discussion".
Its his schtick...  He was banned from the old TR and just spent the last year or so nattering at himself on his blog.   Guess he got lonely?
While you were getting your PhD in virology, I got my PhD in truth detection. :wave:  Dave Hawkins

Re: Yutyrannus
Reply #10
This is all I intend to say on this topic.
Pro tip: if you don't want to discuss, don't post in sections titled "discussion".
Its his schtick...  He was banned from the old TR and just spent the last year or so nattering at himself on his blog.   Guess he got lonely?
His blog was always lonely, why now?
Maybe he got kicked out somewhere else?