Angulomastacator is an extinct genus of dinosaurs that lived during the Early Cretaceous period, approximately 130 million years ago. It was a small theropod dinosaur, about 3–4 meters (10–13 feet) long. Its fossils have been found in the Aptian–Albian aged Upper Cretaceous strata of the Cedar Mountain Formation of Emery County, Utah, United States.
The genus was first described in 2013 from a single fossil fragment of the left rear leg. The fragment includes the upper portion of the femur, the lower portion of the tibia, the fibula, and the upper portion of the astragalus. The fossil was found in the Yellow Cat Member of the Cedar Mountain Formation.
Angulomastacator is the only known member of its family, Angulomastacatoridae. It is believed to be closely related to other small predatory dinosaurs such as troodontids and dromaeosaurs. Its name refers to the angular shape of its bones, which are similar to those of other small theropods.
The fossil remains of Angulomastacator are poorly preserved and incomplete, making it difficult to determine its exact shape and size. However, based on the remains, it is estimated to have been around 3–4 meters (10–13 feet) long and weigh about 50–70 kg (110–150 lbs). It probably had a long neck and tail, with short limbs and a lightly built body. Its diet is unknown but it is likely that it was an active predator, feeding on smaller animals.
| Name: | Angulomastacator dinosaurs |
| Size: | measuring about 3 meters (9.8 feet) long and weighing about 200 kilograms (440 pounds). |
| Body: | Angulomastacator was a medium-sized theropod, |
| Skull: | Angulomastacator a small crest running along the top of its skull. |
| Neck: | Angulomastacator had a long neck |
| Teeth : | Angulomastacator the structure of its teeth suggests that it may have been a scavenger. |
| Main Facts: | Angulomastacator is an important fossil for understanding the evolution of theropod dinosaurs. It displays features that are seen in both early and advanced theropods, and it may represent an intermediate form between the two groups. |
The evolution of Angulomastacator dinosaurs is an interesting topic to explore. These dinosaurs lived during the Late Cretaceous period, about 70-90 million years ago.
They were the last surviving members of the family of Mastacembelidae, a group of predatory fish-eating dinosaurs.
Angulomastacators were small- to medium-sized carnivores with long, narrow heads and long, thin necks. They had long, slender limbs and a long, flexible tail. They could walk both on their hind legs and on all fours. They had sharp, serrated teeth for catching and eating fish and other small prey.
The earliest known Angulomastacator species was Angulomastacator minimus. It lived during the Late Cretaceous period in what is now North America. This species is believed to have been the ancestor of all other Angulomastacator species.
The next species to evolve was Angulomastacator maximus. It lived during the Late Cretaceous period in what is now Europe. This species had a larger body size than its predecessor and its teeth were more strongly serrated.
The last species to evolve was Angulomastacator gigas. It lived during the Late Cretaceous period in what is now Asia. This species was even larger than its predecessors and had the most strongly serrated teeth of any Angulomastacator species.
All Angulomastacator species went extinct during the extinction event at the end of the Cretaceous period. It is not known exactly what caused their extinction, but it is speculated that they may have been outcompeted by other predators or that they were unable to adapt to the changing climate.
Angulomastacator is an extinct genus of ancient crocodilian reptiles.
It is one of the oldest known crocodyliforms, dating back to the Middle Jurassic period around 165 million years ago.
Angulomastacator was about 2.5 meters long and had a long, narrow snout, suggesting it was an opportunistic predator.
It lived in what is now modern-day Europe, and its fossils have been found in what is now France and Portugal.
It is believed to be related to the modern-day alligator and caiman, as they both have similar body shapes and features.
Angulomastacator was likely a semi-aquatic animal, as it had webbed feet and a long tail, which would have helped it swim.
Its name means "angular jawed predator", which is fitting given its long and narrow snout.
Its teeth were sharp and serrated, suggesting it was a carnivore and likely preyed on smaller animals and fish.
It had armor-like scales along its back and sides, which would have protected it from predators.
Angulomastacator is one of the oldest crocodyliforms known to science, and its discovery has helped to better understand the evolution of crocodiles.
