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| Agujaceratops mariscalensis v Gorgosaurus libratus | |
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| Tweet Topic Started: Jun 16 2013, 08:47 PM (1,520 Views) | |
| Taipan | Jun 16 2013, 08:47 PM Post #1 |
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Agujaceratops mariscalensis Agujaceratops (meaning "Horned face from Aguja") is a genus of herbivorous ceratopsian dinosaur. It is a chasmosaurine ceratopsian which lived during the Late Cretaceous period (late Campanian stage) in what is now Texas. Originally known as Chasmosaurus mariscalensis and described by Lehman in 1989, it was moved to a new genus by Lucas, Sullivan and Hunt in 2006. Lehman felt the habitat Agujaceratops lived in (at least where the fossil material was found) may have been a swamp, due to the nature of the sediments. In 1938, three dinosaur bone beds were excavated, and ceratopsian material was collected from Big Bend National Park (Texas) by William Strain. This material was studied by Lehman in 1989 and named Chasmosaurus mariscalensis. It is known only from the holotype UTEP P.37.7.086 a partial adult skull which includes a braincase, left supraorbital horncore, left maxilla and a right dentary. Additional material was associated with the holotype, but not considered to be part of it. All specimens of Agujaceratops were collected from the upper part of the Aguja Formation, dating to 75-73.5 million years ago, in the Big Bend National Park, Brewster County. Subsequent analysis resulted in the taxon being put in its own genus. Agujaceratops was named by Spencer G. Lucas, Robert M. Sullivan and Adrian Hunt in 2006, and the type species is Agujaceratops mariscalensis. Agujaceratops is similar to both Pentaceratops and Chasmosaurus. Its short frill suggests it probably was not an ancestor of Pentaceratops. Weight - 2 - 2.2 tons ![]() Gorgosaurus libratus Gorgosaurus is a genus of tyrannosaurid theropod dinosaur that lived in western North America during the Late Cretaceous Period, between about 76.5 and 75 million years ago. Fossil remains have been found in the Canadian province of Alberta and possibly the U.S. state of Montana. Paleontologists recognize only the type species, G. libratus, although other species have been erroneously referred to the genus. Like most known tyrannosaurids, Gorgosaurus was a bipedal predator weighing more than a metric ton as an adult; dozens of large, sharp teeth lined its jaws, while its two-fingered forelimbs were comparatively small. Gorgosaurus was most closely related to Albertosaurus, and more distantly related to the larger Tyrannosaurus. Gorgosaurus was smaller than Tyrannosaurus or Tarbosaurus, closer in size to Albertosaurus and Daspletosaurus. Adults reached 8 or 9 meters (26 to 30 ft) from snout to tail. Paleontologists have estimated full-grown adults to weigh more than 2.4 tonnes (2.6 short tons), perhaps approaching 2.8 tonnes (3.1 short tons).The largest known skull measures 99 centimeters (39 in) long, just slightly smaller than that of Daspletosaurus. ![]() _________________________________________________________________________________________ Edited by Taipan, Jan 3 2018, 03:22 PM.
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| Ausar | Jun 16 2013, 10:08 PM Post #2 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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If this were still 2013, that is. Granted, ceratopsids were formidable creatures for their size, but Gorgosaurus seems to actually be bigger. Edited by Ausar, Jan 4 2018, 02:05 AM.
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| SpinoInWonderland | Jun 17 2013, 05:17 AM Post #3 |
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The madness has come back...
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Agujaceratops would win more often than not imo.
Edited by SpinoInWonderland, Jun 17 2013, 05:18 AM.
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| Taipan | Jan 3 2018, 03:31 PM Post #4 |
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Paleontologists have estimated full-grown adults to weigh about 2.5 tonnes (2.8 short tons), perhaps approaching 2.8–2.9 tonnes (3.1–3.2 short tons). https://en.wikipedia.org/wiki/Gorgosaurus Hard to find a decent weight for Agujaceratops mariscalensis, but most sites have it around 2 tons. If Gorgosaurus libratus was close to its 3 ton estimate, it would have enough of a weight advantage to win. |
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