[D] Stegosaurus stenops [Su]
Describer
Marsh, 1887
Time
Jurassic Late Kimmeridgian Tithonian
Classification
Ornithischia Thyreophora Stegosauria Stegosauridae
Diet
Herbivore
Fossilsite
Morrison Formation, Colorado, Wyoming, Cleveland-Lloyd Dinosaur Quarry, Utah, US
Fall Under
Stegosaurus
Length
7 meter
Info
Skull
Stegosaurus (Marsh, 1877) = Diracodon (Marsh, 1881)
Stegosaurus > Stegosaurus armatus (Marsh, 1877) >> Stegosaurus ungulatus (Marsh, 1879) Stegosaurus sulcatus (Marsh, 1887) Stegosaurus duplex (Marsh, 1887) Hypsirhophus seeleyanus (Cope, 1879)
Stegosaurus > Stegosaurus stenops (Marsh, 1887) >> Diracodon laticeps (Marsh, 1881)
Stegosaurus > Stegosaurus longispinus (Gilmore, 1914)
Complete skeleton with skull, 4 braincases, at least 50 partial postcrania, juvenile to adult. Bakker notes, among other things, that the stegosaur Diracodon was more primitive than Stegosaurus and that Gilmore incorrectly referred the species Stegosaurus stenops to that genus.
Unfortunately, Bakker provides no details about why he thinks certain stegosaur material from Como Quarry 13 should be referred to the type species (The type specimen of Diracodon laticeps is Yale Peabody Museum 1885, a pair of maxillae from a small or juvenile ornithischian, possibly indeterminate; anything else is referred.)
In S. stenops (approximately 7 m in length) te sacral centra have a decided ventral keel, the neaural spines of the sacrals and proximal caudals are proportionally shorter with transversely flat tops, the middle part of the tail bears thin plates, and there are two pairs of terminal tail spines.
USNM 4934, type specimen collected by M.P. Felch in 1886 at Garden Park, Colorado and consist of a complete skull and virtually complete skeleton, named by Marsh in the American Journal of Science, volume 34, page 415, in 1887. Until the 1990s, it was the most complete stegosaur ever found.
Marsh, 1887
Time
Jurassic Late Kimmeridgian Tithonian
Classification
Ornithischia Thyreophora Stegosauria Stegosauridae
Diet
Herbivore
Fossilsite
Morrison Formation, Colorado, Wyoming, Cleveland-Lloyd Dinosaur Quarry, Utah, US
Fall Under
Stegosaurus
Length
7 meter
Info
Skull
Stegosaurus (Marsh, 1877) = Diracodon (Marsh, 1881)
Stegosaurus > Stegosaurus armatus (Marsh, 1877) >> Stegosaurus ungulatus (Marsh, 1879) Stegosaurus sulcatus (Marsh, 1887) Stegosaurus duplex (Marsh, 1887) Hypsirhophus seeleyanus (Cope, 1879)
Stegosaurus > Stegosaurus stenops (Marsh, 1887) >> Diracodon laticeps (Marsh, 1881)
Stegosaurus > Stegosaurus longispinus (Gilmore, 1914)
Complete skeleton with skull, 4 braincases, at least 50 partial postcrania, juvenile to adult. Bakker notes, among other things, that the stegosaur Diracodon was more primitive than Stegosaurus and that Gilmore incorrectly referred the species Stegosaurus stenops to that genus.
Unfortunately, Bakker provides no details about why he thinks certain stegosaur material from Como Quarry 13 should be referred to the type species (The type specimen of Diracodon laticeps is Yale Peabody Museum 1885, a pair of maxillae from a small or juvenile ornithischian, possibly indeterminate; anything else is referred.)
In S. stenops (approximately 7 m in length) te sacral centra have a decided ventral keel, the neaural spines of the sacrals and proximal caudals are proportionally shorter with transversely flat tops, the middle part of the tail bears thin plates, and there are two pairs of terminal tail spines.
USNM 4934, type specimen collected by M.P. Felch in 1886 at Garden Park, Colorado and consist of a complete skull and virtually complete skeleton, named by Marsh in the American Journal of Science, volume 34, page 415, in 1887. Until the 1990s, it was the most complete stegosaur ever found.