Yaverlandia Temporal range:
Early Cretaceous,
| |
---|---|
Replica of MIWG 1530 seen from two different angles | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Clade: | Maniraptoriformes |
Clade: | Maniraptora |
Genus: | †
Yaverlandia Galton, 1971 |
Species: | †Y. bitholus
|
Binomial name | |
†Yaverlandia bitholus Galton, 1971
|
Yaverlandia (meaning "of Yaverland Point/Yaverland Battery") is a genus of maniraptoran dinosaur. Known from a partial fossil skull (MIWG 1530) found in Lower Cretaceous strata of the Wessex Formation ( Upper Silty Bed; Vectis Formation) on the Isle of Wight. [1] [2] [3] it was described as the earliest known member of the pachycephalosaurid family, but research by Darren Naish shows it to have actually been a theropod, seemingly a maniraptoran. [4] The type species is Y. bitholus. [5]
MIWG 1530, the holotype skull, was discovered in 1930, in England and were commented upon by Watson (1930). [6] [7] It was referred to as an iguanodontid of the genus Vectisaurus in 1936. [8] When Steel (1969) followed Hulke (1879) [9] in listing Vectisaurus as an iguanodontid, Peter Malcolm Galton (1971) named the fossil as Yaverlandia, which he described as a pachycephalosaurid since the skull of Yaverlandia was different than that of Vectisaurus ( Mantellisaurus). [5]
In 2012 additional remains were reported, but these have not been described. [10]
Yaverlandia was about 3 ft (1 m) in length and 1 ft (30 cm) in height. [11]
Before being named, Swinton (1936) had MIWG 1530 placed within Mantellisaurus, [8] which was a member of the Iguanodontidae. Galton (1971) upon describing Yaverlandia placed it within the Pachycephalosauridae. [5] Sullivan (2000), Sereno (2000) [12] Naish (2006; unpublished thesis), Sullivan (2006) [13] and Naish (2008) [4] all re-classified Yaverlandia as a maniraptoran.
Yaverlandia was found in the Vectis Formation and it would have coexisted with the nodosaur Polacanthus, [14] the neornithischian Hypsilophodon, [14] the iguanodontid Mantellisaurus, [14] an indeterminate euornithopod, [14] the spinosaur Baryonyx, [15] the dromaeosaurid Vectiraptor, [14] the plesiosaur Vectocleidus pastorum [16] and the crocodylomorph Hylaeochampsa vectiana. [17]
{{
cite journal}}
: CS1 maint: multiple names: authors list (
link)
Yaverlandia Temporal range:
Early Cretaceous,
| |
---|---|
Replica of MIWG 1530 seen from two different angles | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Clade: | Maniraptoriformes |
Clade: | Maniraptora |
Genus: | †
Yaverlandia Galton, 1971 |
Species: | †Y. bitholus
|
Binomial name | |
†Yaverlandia bitholus Galton, 1971
|
Yaverlandia (meaning "of Yaverland Point/Yaverland Battery") is a genus of maniraptoran dinosaur. Known from a partial fossil skull (MIWG 1530) found in Lower Cretaceous strata of the Wessex Formation ( Upper Silty Bed; Vectis Formation) on the Isle of Wight. [1] [2] [3] it was described as the earliest known member of the pachycephalosaurid family, but research by Darren Naish shows it to have actually been a theropod, seemingly a maniraptoran. [4] The type species is Y. bitholus. [5]
MIWG 1530, the holotype skull, was discovered in 1930, in England and were commented upon by Watson (1930). [6] [7] It was referred to as an iguanodontid of the genus Vectisaurus in 1936. [8] When Steel (1969) followed Hulke (1879) [9] in listing Vectisaurus as an iguanodontid, Peter Malcolm Galton (1971) named the fossil as Yaverlandia, which he described as a pachycephalosaurid since the skull of Yaverlandia was different than that of Vectisaurus ( Mantellisaurus). [5]
In 2012 additional remains were reported, but these have not been described. [10]
Yaverlandia was about 3 ft (1 m) in length and 1 ft (30 cm) in height. [11]
Before being named, Swinton (1936) had MIWG 1530 placed within Mantellisaurus, [8] which was a member of the Iguanodontidae. Galton (1971) upon describing Yaverlandia placed it within the Pachycephalosauridae. [5] Sullivan (2000), Sereno (2000) [12] Naish (2006; unpublished thesis), Sullivan (2006) [13] and Naish (2008) [4] all re-classified Yaverlandia as a maniraptoran.
Yaverlandia was found in the Vectis Formation and it would have coexisted with the nodosaur Polacanthus, [14] the neornithischian Hypsilophodon, [14] the iguanodontid Mantellisaurus, [14] an indeterminate euornithopod, [14] the spinosaur Baryonyx, [15] the dromaeosaurid Vectiraptor, [14] the plesiosaur Vectocleidus pastorum [16] and the crocodylomorph Hylaeochampsa vectiana. [17]
{{
cite journal}}
: CS1 maint: multiple names: authors list (
link)