Anchiceratops dinosaurs

 Amazonsaurus dinosaurs


Anchiceratops was a genus of herbivorous ceratopsid dinosaur that lived during the Late Cretaceous period in what is now western Canada and the western United States. It was a large, heavily-built, quadrupedal animal with a distinctive, parrot-like beak. Its skull was adorned with two thick, curved horns above the eyes, a small horn on the snout, and a large shield-like frill behind the head. Its body was covered in thick, scaly skin.


Anchiceratops was one of the last dinosaurs to evolve before the mass extinction event that marked the end of the Cretaceous period. It was closely related to the more famous Triceratops and may have shared some of the same behaviors and habitats. It was a herbivore and likely fed on low-lying vegetation such as ferns and cycads. Due to its large size and heavy armor, Anchiceratops was probably relatively safe from predation by the large carnivorous dinosaurs of the time.





Amazonsaurus Facts :
Name: Amazonsaurus dinosaurs
Size: Around 9 meters (30 feet) in length.
Body: Amazonsaurus forelimbs were relatively short and slender, while the hindlimbs were long and robust.
Neck: Amazonsaurus is a large, long-necked dinosaur,
Teeth : Amazonsaurus had long, spatulate teeth, suitable for a herbivorous diet.
Main Facts: Amazonsaurus is an extinct genus of sauropod dinosaur from the Early Cretaceous of South America. It is one of the few known sauropods from the Cretaceous of South America, and the first from the continent to be formally described.



Distribution and Extinction of Amazonsaurus :

  1. Amazonsaurus is an extinct genus of sauropod dinosaur that lived in the Late Cretaceous period around 68-65 million years ago. It was first discovered in 1993 in western Brazil. It was named after the Amazon River, which is nearby the discovery site.


  2. The fossil remains of Amazonsaurus were found in the Bauru Basin in western Brazil, which is part of the Araripe Basin. The fossil remains were found in what is known as the Alcântara Formation, which is part of the Cretaceous–Paleogene boundary.


  3. Amazonsaurus was a medium-sized sauropod that was estimated to be about 20 meters (65 feet) in length and weighed between 10 and 15 tons. It had a long neck and a small head, with teeth that were adapted for a herbivorous diet. Its body was covered in scales and it had four legs, with the hind legs being slightly longer than the front ones.


  4. Amazonsaurus was part of a diverse fauna of dinosaurs that lived in the Late Cretaceous period. This included other sauropods like the titanosaurids and the brachiosaurids. It also coexisted with theropods such as Allosaurus and Tyrannosaurus.


  5. The extinction of Amazonsaurus is believed to have occurred at the end of the Cretaceous period, around 65 million years ago. At this time, a large asteroid hit the earth, causing a mass extinction event that wiped out most of the dinosaurs. It is likely that Amazonsaurus was one of the casualties.


  6. Despite its extinction, Amazonsaurus has left behind a legacy of scientific knowledge. Its discovery was the first time that a sauropod had been found in South America, and it helped to provide insight into the evolution of sauropods in the Late Cretaceous period.




Anatomy and Morphology of Amazonsaurus :

  1. Amazonsaurus is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, approximately 70 million years ago. It is known from a single partial skeleton discovered in Brazil in the late 1990s. The skeleton includes a partial skull, cervical vertebrae, partial dorsal vertebrae, a partial sacrum, partial caudal vertebrae, ribs, and limb bones.


  2. The skull of Amazonsaurus is moderately elongated, with most of the length being due to the large premaxilla bones. The premaxillae form a narrow, pointed snout, with the external nares located near the tip. The nasals and frontals form an elevated region at the top of the skull roof. The orbits, or eye sockets, are relatively large and oval. The skull also has a large number of teeth – around 40 in total. These are small, pointed, and serrated.


  3. The neck vertebrae ofAmazonsaurus are long and low, with short, thick ribs. The cervical vertebrae have a single large pleurocoel, or air pocket, on each side. The dorsal vertebrae are more robust and have two pleurocoels each. The sacrum is composed of five fused vertebrae and is connected to the ilia, or hip bones.


  4. The limb bones of Amazonsaurus are relatively long and slender, with the humerus being the longest bone in the forelimb. The hindlimbs are longer than the forelimbs, and the femur is the longest bone in the hindlimb. The bones of the feet are short and robust, and the toes are short and slightly curved.


  5. The neck vertebrae ofAmazonsaurus are long and low, with short, thick ribs. The cervical vertebrae have a single large pleurocoel, or air pocket, on each side. The dorsal vertebrae are more robust and have two pleurocoels each. The sacrum is composed of five fused vertebrae and is connected to the ilia, or hip bones.


  6. Amazonsaurus was a large and heavily-built titanosaurian sauropod. It had a long, low skull, long, low neck vertebrae, robust limb bones, and short, robust toes. This suggests that it may have been a relatively slow-moving, ground-dwelling animal.


Description :

Amazonsaurus is an extinct genus of titanosaurian sauropod dinosaur from Late Cretaceous-aged rocks of the Alto Ligon Formation in Brazil. The type species of Amazonsaurus, A. maranhensis, was named and described in 2017 by researchers from the Federal University of Rio de Janeiro, the University of São Paulo, and the University of Alberta.


Amazonsaurus was a large, long-necked sauropod, estimated to have been around 18 meters (59 feet) in length. Its skull was relatively small compared to other titanosaurians, and it had a flat and broad snout, with large nostrils. Its teeth were all small and conical, and its neck was relatively short. Its forelimbs were short and robust, with four clawed fingers on each hand. Its hindlimbs were long, and it had four-toed feet.


The fossil remains of Amazonsaurus were discovered in the Lígia locality of the Alto Ligon Formation in the municipality of Barreirinhas, Maranhão. This formation is composed of floodplain deposits, and is believed to be of Late Cretaceous age, approximately 90 million years old. The fossil remains of Amazonsaurus are not complete, but include several vertebrae from the back and tail, as well as a partial shoulder blade and numerous ribs.