Agustinia

Agustinia(Agustinia) is one of the genera that inhabited at the present in the previous term. Currently the only species Agustinia Only ligabuei is known, and its only fossil specimen is in It is discovered from the Lohan Cura Formation (). This stratum is estimated to be from the early Cretaceous period (from 116 million years ago to 100 million years ago).

Agustinia - -

Age: 108 Ma

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Previous term | |: | — | — | — |: | |: | |: | |: | |: | |: | |: | |: | |: | No class |: | |: |Agustinian family Agustinidae , |: |Agustinian genus__ Agustinia , Subclassification ()

• _ A. Ligabuei _ , ()

Genus name is the discoverer of specimen Agustin It was made to Martinelli. Initially this dinosaur was announced in 1998 only by Argentinian prominent paleontologist (). The first generic name was "Augustia", but this name was already given as a genus name (similar case, ( __). Bonaparte was renamed Agustinia _ in the general paper published in 1999. _Agustinia ligabuei Was awarded to Dr. Giancarlo Ligabue who funded the investigation in which fossils were discovered.

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Characteristic

At the present time only fragmentary fossils are known, but this includes fragmentary ,,. Hind paw fossils are also collected, , Each one, and five are included. It is discovered in the same place but it is fragmented so that it can not be recovered.

Agustinia ligabuei Was known to be assumed to have a unique armor plate, this was interpreted as being a wide, vertical spike and a plate lining along the center of the back like a non relatives at first. However, as a result of further studies on fossils with poor preservation status, it was shown that the ones that appeared to these "plates" were, in fact, fragments of the pelvis .

Apart from the assumption that armor is assumed, Agustinia's listed anatomical features are very small. The length of the fibula that has been found is about 900 mm, comparing this with those of other dinosaurs, the body length is about 15 m. However, researchers who argue that Agustinia () is fractional because fossils are fragmentary and the possibility of having their own armor is also questionable and it is inadequate to compare with other closely related species To have

Classification

Agustinia was originally a unique department, because it was assumed to have armorAgustinia family(Agustiniidae ). This family name is generally not well accepted. Agustinia is difficult to classify because its characteristics are fragmentary and also features of and also have features. Although it is shown to be a kind of a few unique features seen in specimens, it is not possible to determine any more precise analogous relationship

reference

1. *Bonaparte, JF 1998. An armored sauropod from the Aptian of northern Patagonia, Argentina. In: Tomida, Y., Rich, TH & Vickers-Rich, P. (Eds.). Secund Symposium Gondwana Dinosaurs, 12-13 July 1998, Abstracts with Program. Tokyo: National Science Museum. Pg. 2. ^ Bonaparte, JF 1999. An armored sauropod from the Aptian of northern Patagonia, Argentina. In: Tomida, Y., Rich, TH & Vickers-Rich, P. (Eds.). Proceedings of the Second Gondwanan Dinosaur Symposium Tokyo : National Science Museum Monographs # 15. Pp. 1-12. 3. ^ Mannion, PD, Upchurch, P., Barnes, RN, & Mateus, O. (2013). "Osteology of the Late Jurassic Portuguese sauropod dinosaur _ Lusotitan atalaiensis _ (Macronaria) and the evolutionary history of basal titanosauriforms." _ Zoological Journal of the Linnean Society _,*168, 98-206.

• Upchurch, P., Barrett, PM, & Dodson, P. 2004. Sauropoda. In: Weishampel, DB, Dodson, P., & Osmolska, H. (Eds.) _ The Dinosauria (2nd Edition). Berkeley: University of California Press. Pp. 259-322.

External link

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Post Date : 2018-01-30 04:00

This article is taken from the Japanese Wikipedia Agustinia

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