Welcome Guest [Log In] [Register]
Welcome to Carnivora. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile and voting in polls. Registration is simple, fast, and completely free.


Join our community!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
  • Pages:
  • 1
  • 3
Alioramus remotus v Dilophosaurus wetherilli
Topic Started: Jun 24 2013, 09:20 PM (5,207 Views)
Taipan
Member Avatar
Administrator

Alioramus remotus
Alioramus is one of the least known Asian tyrannosaurids. It was a stretch-snouted tyrannosaurid with a very rugose (bumpy) nose. In fact, there seem to be 6 prominent bumps on the nose. Otherwise, it probably looked very much like a T. rex. It has a very high tooth count (for a tyrannosaur, at 18 maxillary teeth), which lends credence to it being a primitive tyrannosaurid. Alioramus is known from an incomplete skull and some foot bones collected from Nogon-Tsav in Mongolia.. As the name says, it is not a well known tyrannosaurid. It may have been an early version of the Asian tyrannosaur family as it has a braincase very similar to Tarbosaurus bataar. Like Albertosaurus in North America, this early tyrannosaur was not as large as its later cousins. So little is known of this dinosaur that the there is even an argument as to whether it belongs as a tyrannosaurid. Dr. Phillip Curie wrote that the taxonomic status of Alioramus is uncertain because of the incompleteness and immature nature of the specimen.

Posted Image

Dilophosaurus wetherilli
Dilophosaurus (play /daɪˌlɒfɵˈsɔrəs/ dy-lof-o-sawr-əs or /daɪˌloʊfɵˈsɔrəs/; Greek: di for "two", lophos "crest", and sauros "lizard") was a theropod dinosaur from the Sinemurian stage of the Early Jurassic Period, about 193 million years ago. The first specimens were described in 1954, but it was not until over a decade later that the genus received its current name. It is one of the earliest known Jurassic theropods and one of the least understood. Dilophosaurus measured around six meters (20 ft) long and may have weighed half a ton. The most distinctive characteristic of Dilophosaurus is the pair of rounded crests on its skull, possibly used for display. Studies by Robert Gay show no indication that sexual dimorphism was present in the skeleton of Dilophosaurus, but says nothing about crest variation. The teeth of Dilophosaurus are long, but have a fairly small base and expand basally. Another skull feature was a notch behind the first row of teeth, giving Dilophosaurus an almost crocodile-like appearance, similar to the putatively piscivorous spinosaurid dinosaurs. This "notch" existed by virtue of a weak connection between the premaxillary and maxillary bones of the skull. This conformation led to the early hypothesis that Dilophosaurus scavenged off dead carcasses, with the front teeth being too weak to bring down and hold large prey.

Posted Image
Edited by Taipan, Aug 1 2013, 09:34 PM.
Offline Profile Quote Post Goto Top
 
retic
Member Avatar
snake and dinosaur enthusiast
[ *  *  *  *  *  * ]
alioramus wins. it is more robust and has a deadlier bite.
Offline Profile Quote Post Goto Top
 
Carcharadon
Member Avatar
Shark Toothed Reptile
[ *  *  *  *  *  *  *  * ]
The tyrannosaur would use its superior jaws to kill the lightly built dilophosaurus.
Edited by Carcharadon, Jun 25 2013, 08:13 AM.
Offline Profile Quote Post Goto Top
 
SpinoInWonderland
The madness has come back...
[ *  *  *  *  *  *  *  * ]
Alioramus wins, Dilophosaurus is poorly equipped to fight other theropods without a substantial size advantage
Offline Profile Quote Post Goto Top
 
Big G
Herbivore
[ *  *  *  * ]
Alioramus
Length: 6 meters
Weigth: 750 kg
Skull: 46 centimeters

Posted Image
Dilophosaurus
Length: 7 meters
Weigth: 500 kg
Skull: ~ 60 centimeters

Posted Image


I don't know. Dilophosaurus have a size advantage, while Alioramus have better weapons. However, my choose is Alioramus, due the fact that Dilophosaurus may have been a fish eater.
Edited by Big G, Jun 26 2013, 12:28 AM.
Offline Profile Quote Post Goto Top
 
DarkGricer
Member Avatar
Omnivore
[ *  *  *  *  * ]
Theropodomorpha
Jun 25 2013, 05:04 PM
Alioramus
Length: 6 meters
Weigth: 750 kg
Skull: 46 centimeters

Posted Image
Dilophosaurus
Length: 7 meters
Weigth: 1000 kg
Skull: ~ 60 centimeters

Posted Image


I don't know. Dilophosaurus have a size advantage, while Alioramus have better weapons. However, my choose is Alioramus, due the fact that Dilophosaurus may have been a fish eater.
Dilophosaurus was probably lighter than Alioramus due to it's more gracile build.
Offline Profile Quote Post Goto Top
 
theropod
Member Avatar
palaeontology, open source and survival enthusiast
[ *  *  *  *  *  *  *  * ]
Dilophosaurus wasn't heavier than Alioramus, no way. It was only a metre longer, but their respective builts are these:
Posted Image
Posted Image

I would consider it very unlikely it was a piscivore. Guess why...

Spoiler: click to toggle
Offline Profile Quote Post Goto Top
 
Big G
Herbivore
[ *  *  *  * ]
I had read 750 kg for Alioramus and 500-1000 kg for Dilophosaurus.
Edited by Big G, Jun 26 2013, 12:28 AM.
Offline Profile Quote Post Goto Top
 
Spinodontosaurus
Member Avatar
Herbivore
[ *  *  *  * ]
Dilophosaurus is no bigger than Utahraptor, a weight of 1000kg is optimistic to say the least.
Offline Profile Quote Post Goto Top
 
Temnospondyl
Stegocephalia specialist.
[ *  *  *  *  * ]
Dilophosaurus was pretty big. It's light build doesn't make it weak. Some long teeth can slice deep into flesh, making bloody wounds. I vote Dilophosaurus, because of it's bigger size, speed, agility and more leathel bite. Alioramus, however, would be a very tough match. A combination of size, power, speed and agility is ultimate for fight. And, look at the Alioramus's skull, it's not really thick.I don't think it was stronger, than Nanotyrannus.
Offline Profile Quote Post Goto Top
 
Temnospondyl
Stegocephalia specialist.
[ *  *  *  *  * ]
This tyrannosaur is not much more robust.
Offline Profile Quote Post Goto Top
 
Ausar
Member Avatar
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
[ *  *  *  *  *  *  *  * ]
I think dino-ken believed that tyrannosaurids such as Alioramus and Nanotyrannus may have been albertosaurine-sized when fully grown. At parity and using the given size here, I'd favor Alioramus most of the time. If Alioramus did reach sizes as large as the albertosaurines did, then this would be a mismatch.

dino-ken
 
Well - both Alioramus and Nanotyrannus are known from juvenile specimens - but they both greatly differ from the larger better known Tyrannosaurs (Tarbosaurus bataar and Tyrannosaurus rex, respectfully), to actually be juveniles of these species. Personally - I think the adult versions of both Alioramus and Nanotyrannus may have been as large as the albertosaurines.


Wikipedia seemed to support the idea that adult Alioramus may have been larger than known specimens, though they never said it would have reached the size of albertosaurines.

Quote:
 
Alioramus was estimated at 5 to 6 metres (16 to 20 ft) in length when originally described by Sergei Kurzanov in 1976.[1] Kurzanov, however, did not correct for lengthening of the skull by deformation during fossilization, which may indicate a shorter overall body length for this individual. If this specimen is a juvenile, then adult Alioramus would have reached greater lengths, but no confirmed adult specimens are known.[2]


http://en.wikipedia.org/wiki/Alioramus
Edited by Ausar, Jun 27 2013, 05:12 AM.
Offline Profile Quote Post Goto Top
 
7Alx
Member Avatar
Herbivore
[ *  *  *  * ]
Ignorieren schwachkopfspondyl! Er hasst oder er mag Tyrannosaurier nicht.

This is not my mother language though.

@Theropodomorpha

The skull of Alioramus is more like around 0.7 m...

Edited by 7Alx, Jun 27 2013, 05:24 AM.
Offline Profile Quote Post Goto Top
 
theropod
Member Avatar
palaeontology, open source and survival enthusiast
[ *  *  *  *  *  *  *  * ]
Where are those insults for temnospondy from?
Offline Profile Quote Post Goto Top
 
7Alx
Member Avatar
Herbivore
[ *  *  *  * ]
He deserves to be insulted though... His posts make me sick.
Edited by 7Alx, Jun 27 2013, 05:45 AM.
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
DealsFor.me - The best sales, coupons, and discounts for you
Go to Next Page
« Previous Topic · Dinosauria Interspecific Conflict · Next Topic »
Add Reply
  • Pages:
  • 1
  • 3

Find this theme on Forum2Forum.net & ZNR exclusively.