The Latenivenatrix mcmasterae belongs to the genus of Troodontid which is known for only this species. This dinosaur species was described in the year 2017 from the fossils that had been excavated from the Dinosaur Park Formation in Alberta, Southern Canada.
The specimen was first described by Dale Alan Russel in 1969 and he referred it to the Stenonychosaurus genus, but it was referred to Troodon genus in 1987. The fossils of the troodontid dinosaur were found by Aaron van der reest and collected by Irene Vanderloh from the Dinosaur Park Formation in Alberta, southern Canada. The fossil specimens found were some skull bones, four vertebrae, and four ribs, some chevrons and dermal bones, almost complete forelimb and partial hindlimbs.
Van der reest was just a student when he found the hips of a theropod dinosaur in Southern Canada. This discovery was massive, as the fossil found led Van der reest and Phil Currie to realize that the fossils of the Troddon genus were found everywhere and weren't an invalid name anymore.
Scroll down to read about the Latenivenatrix mcmasterae's life, what they fed on, their habits, and other exciting details! If you want to discover more like the Latenivenatrix mcmasterae, take a look at the Nodosaurus and Silvisaurus.
The term Latenivenatrix needs to be pronounced as Lay-ten-e-ven-ah-triks.
The Latenivenatrix is the largest troodontid carnivorous dinosaur and it belongs to the genus of Troodontid, which is known for only this species. It is the largest troodontid to exist and it lived during the Campanian stage in the upper Cretaceous period. The fossil remains of the Latenivenatrix mcmasterae were identified by Van der reest and Phil Currie again in the year 2014.
It lived during the Campanian stage in the Upper Cretaceous period.
Dinosaurs, in general, went extinct almost 65 million years ago, that is, at the end of the Cretaceous period, after living on the earth for about 165 million years. But this species existed in the Campanian stage in the Upper Cretaceous period.
The Troodontid dinosaur-bird existed in the Late cretaceous period and fed on herbivorous dinosaurs which means they habituated areas that were near nature. Terrestrial habitats with moderate temperature and dense vegetation were the perfect places for the bird-like dinosaur to inhabit.
The Latenivenatrix mcmasterae remains were found in the Dinosaur Park Formation in Alberta, southern Canada. The land structure was quite different during the Dinosauria era, but according to the shift in tectonic plates, they inhabited Alberta, Southern Canada.
There is no information as of now on whether these theropod bird species stayed in groups or they stayed alone. But it is assumed that small dinosaurs like this tended to stay in flocks in order to protect themselves from predators and also to hunt more easily.
This troodon species hasn't been discovered fully and till the whole origin is found, nothing can be speculated or proved.
Theropods much like other reptiles mated with each other during the breeding season and in the case of this breed, the female dinosaur laid eggs. The eggs hatch after a certain period of time and newborn dinosaurs came out. The adult dinosaur birds took care of the newborns until they could move with their parents or go along with their new family.
The Latenivenatrix is the largest troodon dinosaur and can be differentiated from other dinosaurs because of their pelvis features. The pelvis of the dinosaur is retroverted and the pubic shaft is anteriorly curved. They also have a large muscle scar on the back of the pubic shaft bone like the species Hesperonychus.
They had a triangular-shaped frontal bone and a concave anterior surface on the metatarsal digit three. This trait is absent in other troodontids like the Stenonychosaurus, but present in Philovenator.
The fossil specimens and remains have not been properly evacuated and therefore there are incomplete structures of the species. Only after the proper discovery of the rest of the fossils of the Latenivenatrix dinosaur can the assumption be made on their bones.
There is no specific mention on how they communicated as it is quite difficult to find, but they definitely didn't have modern means of communication. Like any other animal, dinosaurs also communicated by making sounds and using their body language. These birds might have included hoots and hollers to communicate as well. Having wings also helped these flying dinosaurs and they could use their wings to make a flapping sound in order to communicate.
The Latenivenatrix size is about 118-138 in (3-3.5 m) in length.
As it is not yet proven if they had the ability to fly, how fast they moved can't be estimated or assumed, but being predators who were bipedal, they would have had been faster than smaller herbivores.
The Latenivenatrix weight was almost 6.6 lb (3 kg).
There is no specific name for the male or female dinosaurs of this species and is commonly known as Latenivenatrix or Latenivenatrix mcmasterae. The search for the rest of the fossils is still going on and only after the complete discovery of the significant fossils can it be differentiated.
The newborn dinosaur was known as hatchling or nestling. This was common for most dinosaur species. There is no specific information on the names of newborns for this dinosaur bird as of now.
These flying dinosaur species was a carnivore and therefore fed on the meat of the herbivorous dinosaurs smaller in size than the dinosaur-bird themselves. They also fed on insects that were present in that era.
Based on research, dinosaurs are divided into two groups where sauropods are herbivores and don't attack each other or other dinosaurs, while theropods were meat-eaters and attacked each other and the other dinosaurs as well. Even though these theropods were meat-eaters they were quite small in size, and might not have been as aggressive as other dinosaur birds.
The Latenivenatrix is probably related to Asian species like the Linhevenator and Philovenator.
There was a thought concept called Dinosauroid that existed before, according to which if non-avian dinosaurs didn't go extinct, they would have evolved to the extent that they would be as intelligent as humans today.
The meaning of the term Laternivenatrix is the hiding huntress. It is also sometimes derived as a horrible hiding huntress or the ghoul by some researchers.
The fossils of the troodontid dinosaur were found by Aaron van der reest and collected by Irene Vanderloh from the Dinosaur Park Formation in Alberta, southern Canada. Van der reest was just a student when he found the hips of this largest troodontid dinosaur species in Southern Canada.
Here at Kidadl, we have carefully created lots of interesting family-friendly dinosaur facts for everyone to discover! For more relatable content, check out these Procompsognathus interesting facts, or Xiaotingia facts for kids.
You can even occupy yourself at home by coloring in one of our free printable Latenivenatrix coloring pages.
Main image by Fred Wierum.
Second image by Roland Tanglao from Vancouver, Canada.