Post by Infinity Blade on Jun 6, 2015 2:31:07 GMT 5
Regaliceratops peterhewsi
A restoration of Regaliceratops. © @ Julius T. Csotonyi
Temporal range: Late Cretaceous (Maastrichtian; 68.5-67.5Ma)[1]
Scientific classification:
Life
Domain: Eukaryota
(unranked): Unikonta
(unranked): Opisthokonta
(unranked): Holozoa
(unranked): Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
Clade: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Olfactores
Clade: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Clade: Eugnathostomata
Clade: Teleostomi
Superclass: Tetrapoda
Clade: Reptiliomorpha
Clade: Amniota
Class: Reptilia or Clade: Sauropsida
Clade: Eureptilia
Clade: Romeriida
Clade: Diapsida
Clade: Neodiapsida
Clade: Archelosauria
Clade: Archosauromorpha
Clade: Archosauriformes
Clade: Crurotarsi
Clade: Archosauria
Clade: Avemetatarsalia
Clade: Ornithodira
Clade: Dinosauromorpha
Clade: Dinosauriformes
Clade: Dinosauria
Order: †Ornithischia
Clade: †Genasauria
Clade: †Neornithischia
Clade: †Cerapoda
Clade: †Marginocephalia
Suborder: †Ceratopsia
Superfamily: †Ceratopsoidea
Family: †Ceratopsidae
Subfamily: †Chasmosaurinae
Tribe: †Triceratopsini
Genus: †Regaliceratops
Species: †R. peterhewsi
Regalicertops peterhewsi ("Peter Hews' royal horned face") was a species of ceratopsid that lived in what is now the St. Mary River Formation (southwestern Alberta) during the Maastrichtian stage of the Late Cretaceous (~68.5-67.5 million years ago).[1]
Description:
Regaliceratops' nasal horn was larger than its two orbital horns. Most striking of its features was its frill which is described as somewhat crown-like. "A plot of postorbital horncore length as a function of nasal horncore length results in Regaliceratops falling far outside the morphospace occupied by other Maastrichtian chasmosaurines, and within the morphospace of Campanian centrosaurines". It is believed that Regaliceratops was convergent with centrosaurines not only morphologically, but also behaviorally.[1] It has been nicknamed "Hellboy".[2]
Skull of R. peterhewsi.
References:
[1] "A New Horned Dinosaur Reveals Convergent Evolution in Cranial Ornamentation in Ceratopsidae" (Brown & Henderson, 2015).
[2] www.npr.org/sections/thetwo-way/2015/06/04/411987944/newly-identified-hellboy-dinosaur-sported-unique-horns-scientists-say
A restoration of Regaliceratops. © @ Julius T. Csotonyi
Temporal range: Late Cretaceous (Maastrichtian; 68.5-67.5Ma)[1]
Scientific classification:
Life
Domain: Eukaryota
(unranked): Unikonta
(unranked): Opisthokonta
(unranked): Holozoa
(unranked): Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
Clade: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Olfactores
Clade: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Clade: Eugnathostomata
Clade: Teleostomi
Superclass: Tetrapoda
Clade: Reptiliomorpha
Clade: Amniota
Class: Reptilia or Clade: Sauropsida
Clade: Eureptilia
Clade: Romeriida
Clade: Diapsida
Clade: Neodiapsida
Clade: Archelosauria
Clade: Archosauromorpha
Clade: Archosauriformes
Clade: Crurotarsi
Clade: Archosauria
Clade: Avemetatarsalia
Clade: Ornithodira
Clade: Dinosauromorpha
Clade: Dinosauriformes
Clade: Dinosauria
Order: †Ornithischia
Clade: †Genasauria
Clade: †Neornithischia
Clade: †Cerapoda
Clade: †Marginocephalia
Suborder: †Ceratopsia
Superfamily: †Ceratopsoidea
Family: †Ceratopsidae
Subfamily: †Chasmosaurinae
Tribe: †Triceratopsini
Genus: †Regaliceratops
Species: †R. peterhewsi
Regalicertops peterhewsi ("Peter Hews' royal horned face") was a species of ceratopsid that lived in what is now the St. Mary River Formation (southwestern Alberta) during the Maastrichtian stage of the Late Cretaceous (~68.5-67.5 million years ago).[1]
Description:
Regaliceratops' nasal horn was larger than its two orbital horns. Most striking of its features was its frill which is described as somewhat crown-like. "A plot of postorbital horncore length as a function of nasal horncore length results in Regaliceratops falling far outside the morphospace occupied by other Maastrichtian chasmosaurines, and within the morphospace of Campanian centrosaurines". It is believed that Regaliceratops was convergent with centrosaurines not only morphologically, but also behaviorally.[1] It has been nicknamed "Hellboy".[2]
Skull of R. peterhewsi.
References:
[1] "A New Horned Dinosaur Reveals Convergent Evolution in Cranial Ornamentation in Ceratopsidae" (Brown & Henderson, 2015).
[2] www.npr.org/sections/thetwo-way/2015/06/04/411987944/newly-identified-hellboy-dinosaur-sported-unique-horns-scientists-say
