FOR AGES 3 YEARS TO 18 YEARS
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Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.
Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.
Marginocephalia is a clade or group of ornithischian dinosaurs characterized by a margin or a bony shelf at the back of the skull, and these fringes were probably for display. The marginocephalia groups of dinosaurs are members of the clade Cerapoda, which was first named in 1986 by Sereno. There are two clades within Marginocephalia, horned Ceratopsia, and thick-skulled (dome-headed) Pachycephalosauria. These species are primarily herbivores and used gastroliths to digest tough plant matter until further evolution of tooth batteries for grinding plants. The basal or primitive Marginocephalia is of Asia, however, they migrated up towards North America. These species first evolved in the Jurassic period (to Late Cretaceous) and were common in the Cretaceous period. Maryanska and Osmolska first-named Pachycephalosauria as a suborder within order Ornithischia. Ceratopsian clade has usually been described as a suborder under order Ornithischia. The basal or primitive Marginocephalia was facultative quadrupedal or bipedal, and derived species are constrained quadrupedal. Pachycephalosaurus had basic teeth, obligate bipedalism, and a small-sized body. Ceratopsian has a rostral bone or parrot-like beak with a thin parietal-squamosal shelf extending back into a frill and jugal horn.
If you like these facts, then you read more fun facts about the Chungkingosaurus and the Ichthyovenator on Kidadl.
The pronunciation of 'Marginocephalia' is 'Mar-ji-no-ce-fali-ya.'
The evidence on Marginocephalia reveals that they were social creatures. Marginocephalia group of dinosaurs are classified as members of the order Ornithischia (bird-hipped). The bony skull margins of this dinosaur might have had functions during ritualistic combat, display, to show dominance, ward off predators, defend territory, or establish social order. There was evidence that Ceratopsians (horned dinosaurs) and Pachycephalosaurs (thick-skulled) had interspecific communication and there may have been intraspecific communication. It is thought that Pachycephalosaurs could have used thick skulls in their heads shaped like domes to butt into each other, an opinion among the general public. In some Pachycephalosaurs, however, vascularization is present in the skull cap like in Stygimoloch, which would not support head-butting behavior. In such cases, this thick skull would have just been an ornament or used for agonistic behavior or used for intraspecific communication by butting into the softer plank of other Pachycephalosaurs. The frills of Ceratopsian dinosaurs may have been used as protection. Some also say that frills would have protected these creatures from large dinosaurs like Tyrannosaurus and may be used for mating purposes. Evidence states that Heterodontosauridae were even more closely related to Marginocephalia dinosaurs than the true ornithopods were. Although studying sexual dimorphism in dinosaurs is a difficult task, the intricacy of margins and varying size of Marginocephalia dinosaurs have indicated that the physical forms of the sexes differ.
These species first evolved in the Jurassic Period and became common in the Cretaceous Period around 161-66 million years ago. Ceratopsians (horned dinosaurs) lived from the Late Jurassic to Late Cretaceous around 161-66 million years ago. Pachycephalosaurus (thick-skulled) occurred in the Late Cretaceous around 161-66 million years ago.
This dinosaur group (Ceratopsians and Pachycephalosaurs) of the Late Cretaceous became extinct in the Cretaceous-Paleogene Period around 66 million years ago.
This dinosaur group of the Late Cretaceous occupied Asia, Europe, and North America. Ceratopsians occupied all three habitats ranges while Pachycephalosaurus occupied Asia and North America. The primitive Marginocephalians occupied Asia, however, moved up north to North America.
This margin-headed dinosaur occupied habitat ranges with hot and arid climates, temperate mountains, and rocky mountains. So, they preferred dry conditions.
Both Ceratopsians (horn-head) and Pachycephalosaurs (thick-head) groups are social creatures and might have lived in groups.
The lifespan or maximum age of Pachycephalosaurus (thick-head) and Ceratopsians (horn-headed ) is not known.
The reproduction of these dome heads is oviparous. The breeding process and incubation period of these dinosaur species are not known.
These dinosaur species of the late cretaceous are characterized by a margin or bony shelf on the back of their skull. They have peg-like teeth and their teeth are arranged in a way and strong enough to cut up plants. Early Ceratopsians like Psittacosaurus (from Early Cretaceous) were small-sized bipedal dinosaurs and the group is also species-rich. Advanced members like Triceratops and Centrosaurus evolved to become large quadrupedal with facial frills and horns that extended over the neck. This Ceratopsian dinosaur differs from Pachycephalosaurus in the presence of a parrot-like beak or rostral bone on the upper jaw. They also had a thin parietal-squamosal shelf extending back into a frill and jugal horn. Their frill could have either been used for display, to show dominance or for anchoring jaw muscles. Also, the frills develop quite early in their life.
Pachycephalosaurs also called thick-headed reptiles to have basal forms including basic teeth, obligate bipedalism, and small-sized body. They also have short forelimbs, broad hips, long legs, short necks, and heavy tails. With evolution, came their advanced thick skull roofs including domes with horn-like ornament. Few pieces of research imply that these domes were used for protection and intraspecific combat. Few other research implies that their neck wasn't strong enough for such actions. As these dinosaurs are relatively flat-headed, it is still not clear about the meaning of the flat. Some recent research implies that this flat head could have been a juvenile's trait and became dome-shaped as they grew. This could also point that the females were more flat-headed. The legs of these species might have been straight.
The total number of bones within this group is unknown.
Like all the related dinosaur species, these dinosaurs could have communicated in their time through calls and songs.
This dinosaur group is a relatively large group with the Ceratopsia measuring 3-30 ft (1-9 m) and Pachycephalosauria measuring 6.6-9.8 ft (2-3 m) in length. Pachycephalosauria dinosaurs were mostly half the size of Dilophosaurus.
The legs of both dinosaurs (Pachycephalosaur and Ceratopsia)
The weight of Ceratopsia is 900 lb (400 kg) and Pachycephalosaurs is 50-20,100 lb (23-9,100 kg).
There are no specific names assigned to the female and male dinosaurs of this group.
There is no specific name assigned to this baby dinosaur group.
The diet of both Ceratopsians and Pachycephalosaur dinosaurs was herbivorous. They fed on Palms, cycads, and other prehistoric tough plant species. Research shows that these dinosaurs were not climbers and fed close to the ground.
The extent of aggression of this dome-headed dinosaur is not known.
Chasmosaurines are long-frilled ceratopsids and Centrosaurines are called short-frilled ceratopsids.
Some of the subgroups (families, clades, and genera) within the Ceratopsia group are Neoceratopsia, Protoceratops, Triceratops, Ceratopsidae, MIcroceratus, and Yinlong.
All the ceratopsians of the Neoceratopsia clade are more derived compared to Psittacosaurids.
Cerotopsia's rostral bone or beak acts as a mirror image of their predentary bone on the lower jaw and was recognized and named by Othniel Charles Marsh.
Some of the subgroups (families, clades, and genera) are Gravitholus, Acrotholus, Tylocephale, and Stegoceras.
F. V. Hayden, an American geologist who led the U. S. Geological and Geographical Survey of the Territories discovered the first of Ceratopsian remains in 1855.
Triceratops directly translates to 'three-horned face,' a derivation of Greek terms, tri means 'three,' Keras means 'horn,' and ops means 'face.' Among the 17 species named within genus Triceratops, only two of them are valid today, T. prorsus and T. hoeeidus.
William King Gregory and Walter W. Granger introduced the family Protoceratopsidae, under which the protoceratops are classified, in 1923.
These dinosaurs of the late cretaceous are named Marginocephalia due to the margin head or bony shelf behind the skull.
There are over 40 dinosaurs within this group classified within clades, families, and genera.
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 Sauropelta facts and Orodromeus facts for kids.
You can even occupy yourself at home by coloring in one of our free printable Marginocephalians dinosaur coloring pages.
Read The Disclaimer
At Kidadl we pride ourselves on offering families original ideas to make the most of time spent together at home or out and about, wherever you are in the world. We strive to recommend the very best things that are suggested by our community and are things we would do ourselves - our aim is to be the trusted friend to parents.
We try our very best, but cannot guarantee perfection. We will always aim to give you accurate information at the date of publication - however, information does change, so it’s important you do your own research, double-check and make the decision that is right for your family.
Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.
Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.
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