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Pentaceratops sternbergii
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Oxalaia quilombensis
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Pentaceratops sternbergii v Oxalaia quilombensis
Pentaceratops sternbergii
Pentaceratops ("five-horned face") is a genus of herbivorous ceratopsid dinosaur from the late Cretaceous Period of what is now North America.
Pentaceratops fossils were first discovered in 1921. The genus was named in 1923 when its type species Pentaceratops sternbergii was described. Pentaceratops lived around 76–73 million years ago, its remains having been mostly found in the Kirtland Formation in the San Juan Basin in New Mexico. About a dozen skulls and skeletons have been uncovered, so anatomical understanding of Pentasaurus is fairly complete. One exceptionally large specimen later became its own genus, Titanoceratops, due to its more derived morphology, similarities to Triceratops, and lack of unique characteristics shared with Pentaceratops. Pentaceratops was about 6 meters (20 feet) long, and has been estimated to have weighed around five tonnes. It had a short nose horn, two long brow horns, and long horns on the jugal bones. Its skull had a very long frill with triangular hornlets on the edge.

[Image: Pentaceratops_BW.jpg]

Oxalaia quilombensis
Oxalaia (a reference to the African deity Oxalá) is a genus of carnivorous theropod. It is a spinosaurine spinosaurid which lived during the late Cretaceous (early Cenomanian stage, about 98 mya) in what is now Brazil. Oxalaia is known from the holotype MN 6117-V, fused premaxillae of a very large individual and from the referred fragment MN 6119-V, an isolated and incomplete left maxilla, which were found on Cajual Island, Maranhão State of northeastern Brazil. Fossils of Oxalaia were recovered in 2004 from the Laje do Coringa locality of the Alcântara Formation, part of the Itapecuru Group of the São Luís Basin. Besides these bone fragments, numerous spinosaurid teeth had earlier been reported from the site. The genus was named by Alexander Wilhelm Armin Kellner, Sergio A.K. Azevedeo, Elaine B. Machado, Luciana B. Carvalho and Deise D.R. Henriques in 2011 and the type species is Oxalaia quilombensis. The specific name quilombensis refers to the quilombo settlements, such as on Cajual Island, which were founded by escaped slaves. Estimates suggest that it was 12 to 14 metres (39 to 46 ft) in length and 5 to 7 tonnes (5.5 to 7.7 short tons) in weight —- it is the largest theropod known from Brazil and the eighth officially named species of theropod from Brazil.

[Image: Oxalaia_quilombensis-hez.png]
[Image: wildcat10-CougarHuntingDeer.jpg]
I will bank on the horned dinasaur more often than not due to its weaponary and defenses.
[-] The following 1 user Likes OldGreenVulture's post:
  • TurkeyGod
Agreed, the Oxalaia doesn't posses the right weaponary to bring the ceratopsid down.
It's like putting a stork against a goat. Oxalaia is clearly not adapted for fighting ceratopsians. If they'd ever meet in real world, they would just ignore each other.
[Image: 1200px-Cryolophosaurus_skeleton_mount_FMNH.jpg]

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