Share
VIDEOS 1 TO 50
Juratyrant - Video Learning - WizScience.com
Juratyrant - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Juratyrant: Dinosaur of the Day
Juratyrant: Dinosaur of the Day
Published: 2016/03/18
Channel: I Know Dino
Juratyrant: I Know Dino Podcast Episode 08
Juratyrant: I Know Dino Podcast Episode 08
Published: 2016/03/18
Channel: I Know Dino
Juratyrant sounds
Juratyrant sounds
Published: 2016/06/25
Channel: Cj Magruder
Dinosaur rampage : Juratyrant , fukuiraptor , gojirasaurus
Dinosaur rampage : Juratyrant , fukuiraptor , gojirasaurus
Published: 2016/08/04
Channel: Cj Magruder
OBM - Dinosaur - Juratyrant
OBM - Dinosaur - Juratyrant
Published: 2016/12/30
Channel: Our Best Moments
Tyrannosauroid Tribute
Tyrannosauroid Tribute
Published: 2012/04/06
Channel: CKprimeval07
ABC Dinos
ABC Dinos
Published: 2014/01/16
Channel: Nathan Rozenberg
2013 Discovered Dinosaurs Part 2
2013 Discovered Dinosaurs Part 2
Published: 2014/03/30
Channel: LegitEliminator
Echinodon - Video Learning - WizScience.com
Echinodon - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Variraptor - Video Learning - WizScience.com
Variraptor - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Stokesosaurus - Video Learning - WizScience.com
Stokesosaurus - Video Learning - WizScience.com
Published: 2015/09/02
Channel: Wiz Science™
Dinotropia:3 Stokesosaurus
Dinotropia:3 Stokesosaurus
Published: 2014/06/23
Channel: TriDaDino
Yongjinglong - Video Learning - WizScience.com
Yongjinglong - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Proceratosauridae - Video Learning - WizScience.com
Proceratosauridae - Video Learning - WizScience.com
Published: 2015/09/08
Channel: Wiz Science™
Camptosaurus: Dinosaur of the Day
Camptosaurus: Dinosaur of the Day
Published: 2016/03/18
Channel: I Know Dino
Walking With Dinosaurs - Cruel Sea (Remake Ver.)
Walking With Dinosaurs - Cruel Sea (Remake Ver.)
Published: 2017/06/01
Channel: Dinosaurs! Jsjung23
Xiaotingia - Video Learning - WizScience.com
Xiaotingia - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Sinotyrannus - Video Learning - WizScience.com
Sinotyrannus - Video Learning - WizScience.com
Published: 2015/09/08
Channel: Wiz Science™
Nothronychus vs zunityrannus
Nothronychus vs zunityrannus
Published: 2012/10/04
Channel: ajlevante
Xiongguanlong - Video Learning - WizScience.com
Xiongguanlong - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Dysalotosaurus: Dinosaur of the Day
Dysalotosaurus: Dinosaur of the Day
Published: 2016/04/02
Channel: I Know Dino
Vulcanodon
Vulcanodon
Published: 2015/07/30
Channel: Wiz Science™
Tyrannosaurus Rex: Dinosaur of the Day
Tyrannosaurus Rex: Dinosaur of the Day
Published: 2016/03/13
Channel: I Know Dino
Zhanghenglong - Video Learning - WizScience.com
Zhanghenglong - Video Learning - WizScience.com
Published: 2015/09/04
Channel: Wiz Science™
Veterupristosaurus sounds
Veterupristosaurus sounds
Published: 2016/06/25
Channel: Cj Magruder
Siats - Video Learning - WizScience.com
Siats - Video Learning - WizScience.com
Published: 2015/09/17
Channel: Wiz Science™
Giganotosaurus: Dinosaur of the Day
Giganotosaurus: Dinosaur of the Day
Published: 2016/04/06
Channel: I Know Dino
Dilophosaurus: Dinosaur of the Day
Dilophosaurus: Dinosaur of the Day
Published: 2016/03/29
Channel: I Know Dino
Raptorex - Video Learning - WizScience.com
Raptorex - Video Learning - WizScience.com
Published: 2015/08/02
Channel: Wiz Science™
Lythronax: Dinosaur of the Day
Lythronax: Dinosaur of the Day
Published: 2016/05/17
Channel: I Know Dino
The Every Day Struggles of A Dinosaur | Roblox Dinosaur Simulator
The Every Day Struggles of A Dinosaur | Roblox Dinosaur Simulator
Published: 2016/10/26
Channel: ThatDalekGuy
Indominus Rex: Dinosaur of the Day
Indominus Rex: Dinosaur of the Day
Published: 2016/04/14
Channel: I Know Dino
A Day in Dinosaur Time
A Day in Dinosaur Time
Published: 2011/03/16
Channel: Lyn Ross
Eotyrannus sounds
Eotyrannus sounds
Published: 2016/06/25
Channel: Cj Magruder
Spore Dinos-Indiosuchus
Spore Dinos-Indiosuchus
Published: 2012/08/24
Channel: snoontoon
Deinocheirus: I Know Dino Podcast Episode 10
Deinocheirus: I Know Dino Podcast Episode 10
Published: 2016/03/21
Channel: I Know Dino
Spinosaurus: Dinosaur of the Day
Spinosaurus: Dinosaur of the Day
Published: 2016/03/18
Channel: I Know Dino
Kimmeridge Ridge View 2
Kimmeridge Ridge View 2
Published: 2015/09/11
Channel: Andy Pedrick
Qianzhousaurus: I Know Dino Podcast Episode 19
Qianzhousaurus: I Know Dino Podcast Episode 19
Published: 2016/03/30
Channel: I Know Dino
Dinosaur rampage : giganotosaurus / carcharodontosaurus
Dinosaur rampage : giganotosaurus / carcharodontosaurus
Published: 2016/08/03
Channel: Cj Magruder
Dinosaur king fukuiraptor sounds
Dinosaur king fukuiraptor sounds
Published: 2016/07/27
Channel: Cj Magruder
Ultrasaurus: I Know Dino Podcast Episode 21
Ultrasaurus: I Know Dino Podcast Episode 21
Published: 2016/04/04
Channel: I Know Dino
Tyrannotitan sounds
Tyrannotitan sounds
Published: 2016/06/25
Channel: Cj Magruder
Dysalotosaurus: I Know Dino Podcast Episode 20
Dysalotosaurus: I Know Dino Podcast Episode 20
Published: 2016/04/02
Channel: I Know Dino
Dilophosaurus: I Know Dino Podcast Episode 18
Dilophosaurus: I Know Dino Podcast Episode 18
Published: 2016/03/29
Channel: I Know Dino
Dinosaur rampage : roboraptor
Dinosaur rampage : roboraptor
Published: 2016/08/02
Channel: Cj Magruder
The bad dog show episode 1 interviewing Cj Magruder
The bad dog show episode 1 interviewing Cj Magruder
Published: 2015/11/27
Channel: Cj Magruder
Dinosaur rampage : acrocanthosaurus , metriacanthosaurus , veterupristosaurus
Dinosaur rampage : acrocanthosaurus , metriacanthosaurus , veterupristosaurus
Published: 2016/08/02
Channel: Cj Magruder
Szechuanosaurus sounds
Szechuanosaurus sounds
Published: 2016/06/25
Channel: Cj Magruder
NEXT
GO TO RESULTS [51 .. 100]

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Juratyrant
Temporal range: Late Jurassic, 149 Ma
Stokesosaurus langhami remains 01.png
Restoration illustrating known fossil remains in gray
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Proceratosauridae
Genus: Juratyrant
Brusatte & Benson, 2013
Type species
Stokesosaurus langhami
Benson, 2008
Species

Juratyrant langhami (Benson, 2008)

Synonyms

Stokesosaurus langhami Benson, 2008

Juratyrant (meaning "Jurassic tyrant") is a tyrannosauroid dinosaur genus from the late Jurassic period (early Tithonian age) of England. The genus contains a single species, J. langhami.

Discovery[edit]

Restoration

The species is known from a single specimen consisting of an "associated partial skeleton represented by a complete pelvis" as well as a partially complete leg, and neck, back, and tail vertebrae.[1] This skeleton was discovered in 1984 in Dorset. The specimen was mentioned in several papers, but was not formally described until 2008. The species was named in honor of commercial fossil collector[2] Peter Langham, who uncovered the specimen. The specimen was discovered in strata of the Kimmeridge Clay dating from the Tithonian, the final stage of the Late Jurassic, and belonging to the Pectinatites pectinatus ammonite zone, indicating the fossil is between 149.3 and 149 million years old.[1]

Description[edit]

The holotype of Juratyrant is a partial skeleton composed of specimens OUMNH J.3311-1 through OUMNH J.3311-30. Its components include a cervical vertebra, five dorsal vertebrae, a complete sacrum, five caudal vertebrae, a complete pelvic girdle, both femurs, both tibiae, and various other fragments. Although initially considered a species of Stokesosaurus due to various traits of the illium, subsequent review has shown that due to the limited amount of of pelvic material for basal tyrannosauroids, these traits cannot be assumed to only be present in these two species and thus S. langhami must be placed in its own genera. Once separated from Stokesosaurus, Juratyrant can be characterized by four autapomorphies, as well as two assumed autapomorphies (which are difficult to assess due to preservation):[3]

  • An ischial apron with a "folded" appearance.
  • A fibular flange that continues as a distinct low ridge to the proximal end of the tibia.
  • A convex tubercule on the ischium.
  • A deep lateral fossa on the pubis below the acetabulum.
  • A thin but prominent hyposphene on the fifth sacral vertebra (assumed).
  • A broad, concave extensor groove of the femur (assumed).

Classification[edit]

Estimated size compared to a human

The species was originally assigned to the genus Stokesosaurus, as Stokesosaurus langhami, by Roger Benson in 2008. However, later studies showed that it was not necessarily a close relative of Stokesosaurus clevelandi, the type species of that genus. It was formally re-classified in its own genus, Juratyrant, by Benson and Stephen Brusatte in 2013 and placed as a sister taxon to Stokesosaurus clevelandi in a clade (also including Eotyrannus) of basal tyrannosauroids more advanced than Dilong.[3]

However, in 2013 Loewen et al. published a cladogram placing Juratyrant as a sister taxon to Stokesosaurus inside Proceratosauridae due to due to sharing with Sinotyrannus a narrow preacetabular notch.[4] It should be noted, however, that many basal tyrannosauroids have incomplete or unknown ilia and this trait may be more widespread than currently known. This cladogram is shown below.

Tyrannosauroidea
Proceratosauridae


Proceratosaurus bradleyi



Kileskus aristotocus



Guanlong wucaii





Sinotyrannus kazuoensis




Juratyrant langhami



Stokesosaurus clevelandi







Dilong paradoxus




Eotyrannus lengi




Bagaraatan ostromi




Raptorex kriegsteini




Dryptosaurus aquilunguis





Alectrosaurus olseni



Xiongguanlong baimoensis





Appalachiosaurus montgomeriensis





Alioramus altai



Alioramus remotus




Tyrannosauridae











However, a 2016 analysis by Brusatte and Carr utilizing both parsimonious and Bayesian phylogeny placed Stokesosaurus and Juratyrant as tyrannosauroids slightly more advanced than proceratosauridae and Dilong. In addition, Eotyrannus is recovered as a sister taxon of these genera in the parsimonious phylogeny.[5]

See also[edit]

References[edit]

  1. ^ a b Benson, R.B.J. (2008). "New information on Stokesosaurus, a tyrannosauroid (Dinosauria: Theropoda) from North America and the United Kingdom". Journal of Vertebrate Paleontology. 28 (3): 732–750. doi:10.1671/0272-4634(2008)28[732:NIOSAT]2.0.CO;2. 
  2. ^ Taylor, M.A. (1989). "'Fine Fossils For Sale' — the Professional Collector and the Museum". Geological Curator. 5 (2): 55–64. 
  3. ^ a b Brusatte, S.L.; Benson, R.B.J. (2013). "The systematics of Late Jurassic tyrannosauroids (Dinosauria: Theropoda) from Europe and North America". Acta Palaeontologica Polonica. 58 (1): 47–54. doi:10.4202/app.2011.0141. 
  4. ^ Loewen, M.A.; Irmis, R.B.; Sertich, J.J.W.; Currie, P. J.; Sampson, S. D. (2013). Evans, David C, ed. "Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans". PLoS ONE. 8 (11): e79420. PMC 3819173Freely accessible. PMID 24223179. doi:10.1371/journal.pone.0079420. 
  5. ^ Brusatte, Stephen L.; Carr, Thomas D. (2016-02-02). "The phylogeny and evolutionary history of tyrannosauroid dinosaurs". Scientific Reports. 6 (1). ISSN 2045-2322. doi:10.1038/srep20252. 

Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license