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.
Key Facts
- ›Arrudatitan was a titanosaur sauropod dinosaur from the Late Cretaceous period.
- ›Fossils were discovered in the Adamantina Formation of Brazil.
- ›The species a. maximus was originally described as Aeolosaurus maximus in 2011.
- ›It was named Arrudatitan in 2021 to reflect its distinct evolutionary placement.
- ›The dinosaur was noted for being relatively gracile for a titanosaur.
- ›Estimated to have reached lengths of up to 15 meters.
Relatively Gracile For A Titanosaur, Estimated Length Up To 15 Meters, Femur Length of 1.55 Meters
Aeolosaurus, Punatitan
South America
About Arrudatitan
Arrudatitan, meaning "Arruda's giant," is an extinct genus of titanosaur sauropod dinosaur that inhabited South America during the Late Cretaceous period. The type species, Arrudatitan maximus, was first described in 2011 as a species of Aeolosaurus but was later reclassified into its own genus in 2021 due to significant differences from Aeolosaurus.
Discovery and Naming
The holotype specimen of Arrudatitan maximus was discovered in 1997 in Cândido Rodrigues, Brazil, within the Adamantina Formation. The fossils, which include partial vertebrae, ribs, and limb bones, were collected by paleontologists. Initially assigned to the genus Aeolosaurus, subsequent analyses revealed that the species was distinct enough to warrant its own genus. The new genus, Arrudatitan, was erected in 2021 by Silva et al., honoring Brazilian paleontologist Antonio Celso de Arruda Campos.
Description and Classification
Arrudatitan is characterized as being relatively gracile for a titanosaur. Based on the size of the holotype, it is estimated to have reached lengths of up to 15 meters (49 ft) when fully grown. The femur length is recorded at approximately 1.55 meters (5.1 ft). Phylogenetic analyses have placed Arrudatitan outside of the Aeolosaurus genus, with some studies suggesting it is sister to Rinconsauria or closely related to a clade including Punatitan and other Aeolosaurus species.
Source: Wikipedia ↗
Frequently Asked Questions
What does the name Arrudatitan mean?
The name Arrudatitan means "Arruda's giant." It was named in honor of Brazilian paleontologist Antonio Celso de Arruda Campos.
When did Arrudatitan live?
Arrudatitan lived during the Late Cretaceous period, specifically in the Campanian-Maastrichtian stages.
Where were Arrudatitan fossils found?
The fossils of Arrudatitan were discovered in the Adamantina Formation of Brazil.
How large was Arrudatitan?
Based on the holotype, Arrudatitan is estimated to have grown up to 15 meters (49 ft) in length. The femur length of Arrudatitan is recorded as 1.55 meters (5.1 ft).
What type of dinosaur was Arrudatitan?
Arrudatitan was a titanosaur, a group of long-necked, herbivorous sauropod dinosaurs.
Why was Arrudatitan separated from the Aeolosaurus genus?
Subsequent analyses indicated that the species A. maximus was outside the Aeolosaurus genus, being sufficiently different and having a distinct evolutionary placement. This led to the erection of the new genus Arrudatitan.
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.
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.
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.