Cretaceous Mongolia: Difference between revisions
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'''Cretaceous Mongolia''' is one of the strangest and best preserved of all [[Mesozoic]] [[ecosystem]]s. The shifting sand of what was, even then, the [[Gobi Desert]] have ensured that [[fossil]]s of the [[animal]]s that lived there can be found in exactly the position in which they were buried, with most of the [[bone]]s together. The most notable fossil, dubbed the [[Fighting Dinosaurs]], is the very well preserved remains of a ''[[Velociraptor]]'', locked in combat with a ''[[Protoceratops]]'',<ref>{{cite journal|last1=Kielan-Jaworowska|first1=Z.|last2=Barsbold|first2=R.|date=1972|title=Narrative of the Polish-Mongolian Palaeontological Expeditions, 1967-1971|journal=Palaeontologia Polonica|volume=27|pages=1−12|url=http://www.palaeontologia.pan.pl/Archive/1972-27_5-13_1-2.pdf|archive-url=https://web.archive.org/web/20240520234553/http://www.palaeontologia.pan.pl/Archive/1972-27_5-13_1-2.pdf|archive-date=2024-05-20|url-status=dead}}</ref> a small [[ceratopsian]].<ref>{{Cite journal |last=Tereshchenko |first=V.S. |date=2021 |title=Axial Skeleton of Subadult Protoceratops andrewsi from Djadokhta Formation (Upper Cretaceous, Mongolia) |url=https://rave.ohiolink.edu/ejournals/article/382799289 |journal=Paleontological Journal |volume=55 |issue=12 |pages=1408–1457 |doi=10.1134/S0031030121120030 |bibcode=2021PalJ...55.1408T |via=GeoRef (EBSCO)}}</ref> |
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'''Cretaceous Mongolia''' is one of the strangest and best preserved of all [[Mesozoic]] ecosystems. The shifting sand of the even then Gobi Desert have ensured that fossils of the animals that lived there can be found in exacly the position that they were buried in with most of the bones together. The most famous of these fossils is that of the perfecly preserved remains of a [[Velociraptor]] locked in combat with a Protoceratops-a small ceratopsian. |
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Mt. Altai is unusual because the comparative lack of food means that most of the [[dinosaur]]s there remained quite small, most not much bigger than a present-day person. |
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There were a few large dinosaurs, though. ''[[Tarbosaurus]]'' was the Mongolian equivalent of ''[[Tyrannosaurus|Tyrannosaurus rex]]'' and was almost as large. The large [[herbivore]]s grew into many strange shapes. ''[[Therizinosaurus]]'' was a bipedal [[herbivore]] about as tall as ''Tarbosaurus'' with a long neck, small head and characteristic long [[claw]]s on the hands which it used for defence and to help it browse far away trees. Small [[ankylosaur]]s were the [[Armour (zoology)|armour]]-plated residents and [[hadrosaur]]s provided large prey for the [[carnivore]]s. |
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Mongolia is odd because the comparative lack of food means that most of the dinosaurs there remained quite small, most no bigger than a man. There were a few though. Tarbosaurus was the Mongolian equivalent of Tyrannosaurus Rex and was almost as large-the top predator. The large herbivores grew into many strange shapes. Therezinosaurus was a bipedal herbivore about as tall as Tarbosaurus with a long neck, small head and charecteristic long claws on the hands which it used for defence and to help it browse far away trees. Small ankylosaurs were the armour-plated residents and hadrosaurs provided large prey for the carnivores. Strange creatures like the Oviraptor fed on many of the same things Velociraptor did and the two species often competed for food.The Gobi Desert was often interspersed with scrubland and occasionally a dense rainforest supporting many types of plant life, insects and small dinosaurs like Mononeichus. Dinosaurs like these and the Velociraptor were among the dinosaurs that would eventually evolve into modern birds. |
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Unusual prehistoric animals, such as the ''[[Oviraptor]]'', fed on many of the same things that ''Velociraptor'' did. The two [[species]] often competed for food. |
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The Gobi Desert was often interspersed with [[scrubland]] and occasionally a dense [[rainforest]] supporting many types of [[plant]] life, [[insect]]s, and small dinosaurs like ''[[Shuvuuia]]'' and ''[[Mononykus]]''. ''Mononykus'', ''Shuvuuia'' and the ''Velociraptor'' were among the dinosaurs that are taxon related to modern [[bird]]s. |
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==References== |
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{{Reflist}} |
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[[Category:Cretaceous Mongolia| ]] |
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[[Category:Geology of Mongolia]] |
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{{Paleo-site-stub}} |
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Latest revision as of 03:46, 24 June 2024
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Cretaceous Mongolia is one of the strangest and best preserved of all Mesozoic ecosystems. The shifting sand of what was, even then, the Gobi Desert have ensured that fossils of the animals that lived there can be found in exactly the position in which they were buried, with most of the bones together. The most notable fossil, dubbed the Fighting Dinosaurs, is the very well preserved remains of a Velociraptor, locked in combat with a Protoceratops,[1] a small ceratopsian.[2]
Dinosaurs in Mt. Altai
[edit]Mt. Altai is unusual because the comparative lack of food means that most of the dinosaurs there remained quite small, most not much bigger than a present-day person.
There were a few large dinosaurs, though. Tarbosaurus was the Mongolian equivalent of Tyrannosaurus rex and was almost as large. The large herbivores grew into many strange shapes. Therizinosaurus was a bipedal herbivore about as tall as Tarbosaurus with a long neck, small head and characteristic long claws on the hands which it used for defence and to help it browse far away trees. Small ankylosaurs were the armour-plated residents and hadrosaurs provided large prey for the carnivores.
Unusual prehistoric animals, such as the Oviraptor, fed on many of the same things that Velociraptor did. The two species often competed for food.
The Gobi Desert was often interspersed with scrubland and occasionally a dense rainforest supporting many types of plant life, insects, and small dinosaurs like Shuvuuia and Mononykus. Mononykus, Shuvuuia and the Velociraptor were among the dinosaurs that are taxon related to modern birds.
References
[edit]- ^ Kielan-Jaworowska, Z.; Barsbold, R. (1972). "Narrative of the Polish-Mongolian Palaeontological Expeditions, 1967-1971" (PDF). Palaeontologia Polonica. 27: 1−12. Archived from the original (PDF) on 2024-05-20.
- ^ Tereshchenko, V.S. (2021). "Axial Skeleton of Subadult Protoceratops andrewsi from Djadokhta Formation (Upper Cretaceous, Mongolia)". Paleontological Journal. 55 (12): 1408–1457. Bibcode:2021PalJ...55.1408T. doi:10.1134/S0031030121120030 – via GeoRef (EBSCO).
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