Austroposeidon
Austroposeidon is a genus of titanosaurian sauropod dinosaur that lived in Brazil during the Late Cretaceous period. Known from a single adult specimen, it is recognized as the largest dinosaur discovered in Brazil, with an estimated length of approximately 25 meters. Its scientific name, Austroposeidon magnificus, reflects its southern origin and magnificent size.
Key Facts
- ›Austroposeidon was a titanosaurian sauropod dinosaur.
- ›It is the largest dinosaur discovered in Brazil, with an estimated length of 25 meters.
- ›Fossils were discovered in the Presidente Prudente Formation of Brazil.
- ›The genus name means "Magnificent Southern Poseidon".
- ›Its vertebrae exhibit camellate bone texture and unique vertebral structures.
- Large Titanosaurian Sauropod
- Estimated Length of 25 Meters
- Vertebrae With Camellate Bone Texture
- Absence of Hyposphene-Hypantrum Articulations In Vertebrae
- Cervical and Dorsal Vertebrae Without Forked Neural Spines
- Unique Vertebral Autapomorphies
Uberabatitan, Brasilotitan
South America
About Austroposeidon
Austroposeidon is a genus of titanosaurian sauropod dinosaur that roamed South America during the Late Cretaceous period. Its scientific name, Austroposeidon magnificus, translates to "Magnificent Southern Poseidon," a nod to its origin on the continent and its considerable size.
Discovery and Naming
The existence of Austroposeidon is known from a single specimen, cataloged as MCT 1628-R. This fossil material includes fragments of cervical (neck), dorsal (back), and sacral (hip) vertebrae, along with a cervical rib and a complete dorsal vertebra. The specimen was originally discovered in 1953 by paleontologist Llewellyn Ivor Price in what is now known as the Presidente Prudente Formation of Brazil. However, the remains were not formally described until 2016. The fine sandstone in which the fossil was found suggests it was preserved in a crevasse splay deposit on a floodplain. Unfortunately, the exact discovery site has since been lost due to urban development.
Description and Classification
Austroposeidon was a colossal sauropod, recognized as the largest dinosaur ever found in Brazil. The single adult specimen is estimated to have reached a length of approximately 25 meters (82 feet). Several key anatomical features of its vertebrae confirm its classification as a titanosaur. These include the absence of hyposphene-hypantrum articulations, cervical and dorsal vertebrae lacking forked neural spines, and a distinctive camellate internal bone texture characterized by numerous small air chambers. Unique autapomorphies, or traits not seen in other titanosaurs, were identified in its cervical and dorsal vertebrae, further solidifying its status as a new genus. Phylogenetic analyses have placed Austroposeidon as a sister taxon to the Lognkosauria, and in some studies, as a member of Lognkosauria itself.
Source: Wikipedia ↗
Frequently Asked Questions
What does the name Austroposeidon mean?
The genus name Austroposeidon combines the Latin word 'austro' meaning 'southern' (referring to its South American origin) with 'Poseidon', the Greek god of earthquakes. The specific name, 'magnificus', is Latin for 'great, elevated, noble', acknowledging the specimen's large size.
Where were Austroposeidon fossils found?
Fossils of Austroposeidon were discovered in the Presidente Prudente Formation, part of the Bauru Group, in Brazil. The specimen was found in an outcrop along the Raposo Tavares Road.
What period did Austroposeidon live in?
Austroposeidon lived during the Late Cretaceous period. Specifically, the fossils are from the Campanian-Maastrichtian stages of this period.
How large was Austroposeidon?
Austroposeidon was a very large sauropod. The single known adult specimen is estimated to have been about 25 meters (82 feet) long, making it the largest dinosaur discovered in Brazil.
What kind of dinosaur was Austroposeidon?
Austroposeidon was a titanosaurian sauropod. This classification is supported by several features of its vertebrae, including the absence of hyposphene-hypantrum articulations and camellate bone texture.
Related Dinosaur species
Adamantisaurus
Adamantisaurus was a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous Period in South America. It is known from only six tail vertebrae, suggesting it was a large animal with a long neck and tail. Its exact evolutionary relationships are difficult to determine due to the limited fossil material.
Arrudatitan
Arrudatitan was a titanosaur sauropod dinosaur that lived during the Late Cretaceous period in what is now Brazil. This relatively gracile titanosaur is known from partial skeletal remains, including vertebrae, ribs, and limb bones. The genus was established in 2021 to house the species previously known as Aeolosaurus maximus, reflecting its distinctiveness from the Aeolosaurus genus.
Brasilotitan
Brasilotitan was a titanosaurian sauropod dinosaur from Brazil, living during the Late Cretaceous period. Named for its Brazilian origin and its herbivorous diet, it was characterized by a distinctive squared-off snout and a relatively small size for a sauropod.