[D] Lexovisaurus durobrivensis [T]
Describer
Hulke, 1887
Time
Jurassic Middle Jurassic Late Callovian Oxfordian Kimmeridgian
Classification
Ornithischia Thyreophora Stegosauria Stegosauridae
Diet
Herbivore
Fossilsite
Lower Oxford Clay Formation (Peterborough Member), Kimmerdige Clay, Northamptonshire, England; Marnes d\\\'Argences Calvados, France
Fall Under
Lexovisaurus
Info
Typespecies
Lexovisaurus (Hoffstetter, 1957) > Lexovisaurus durobrivensis (Hulke, 1887) = Omosaurus durobrivensis (Hulke, 1887) > Omosaurus leedsi (Seeley, 1901 partim)
Lexovisaurus > Lexovisaurus vetustus (Huene, 1910) > Omosaurus vetustus (Huene, 1910)
3 partial postcranial skeletons, 10 isolated elements, juvenile to adult.
Omosaurus leedsi (Seeley, 1901 partim) derived characters of Lexovisaurus include caudal centra in the proximal third of the tail with a large proximal chevron facet that unites with the distal one to give a V- shaped centrum in caudals 7 to 11, almost solid dorsal plate to sacrum, midcaudals with vertical neural spines, an ilium with a long, thin preacetabular process, a pubis with a rugose central thickening, and osteoderms that include several very large tall thin plates whose height is over twice the craniocaudal length. A shoulder spine is present.
Hulke, 1887
Time
Jurassic Middle Jurassic Late Callovian Oxfordian Kimmeridgian
Classification
Ornithischia Thyreophora Stegosauria Stegosauridae
Diet
Herbivore
Fossilsite
Lower Oxford Clay Formation (Peterborough Member), Kimmerdige Clay, Northamptonshire, England; Marnes d\\\'Argences Calvados, France
Fall Under
Lexovisaurus
Info
Typespecies
Lexovisaurus (Hoffstetter, 1957) > Lexovisaurus durobrivensis (Hulke, 1887) = Omosaurus durobrivensis (Hulke, 1887) > Omosaurus leedsi (Seeley, 1901 partim)
Lexovisaurus > Lexovisaurus vetustus (Huene, 1910) > Omosaurus vetustus (Huene, 1910)
3 partial postcranial skeletons, 10 isolated elements, juvenile to adult.
Omosaurus leedsi (Seeley, 1901 partim) derived characters of Lexovisaurus include caudal centra in the proximal third of the tail with a large proximal chevron facet that unites with the distal one to give a V- shaped centrum in caudals 7 to 11, almost solid dorsal plate to sacrum, midcaudals with vertical neural spines, an ilium with a long, thin preacetabular process, a pubis with a rugose central thickening, and osteoderms that include several very large tall thin plates whose height is over twice the craniocaudal length. A shoulder spine is present.