Asylosaurus(meaning "unharmed or sanctuary lizard" ) is agenusofbasalsauropodomorphdinosaurfrom theLate TriassicAvon Fissure FillofEngland.It is based on partial remains, discovered in theautumnof 1834,[1]described in 1836 byHenry RileyandSamuel Stutchburyas pertaining toThecodontosaurus,[1]thatOthniel Charles Marshbrought toYale Universitybetween 1888 and 1890. These remains thus escaped destruction by a bombardment in 1940 duringWorld War II,unlike the originalholotypeofThecodontosaurus.Asylosauruswas described in 2007 byPeter Galton.Thetype speciesisA. yalensis,referring to Yale. The bones originally came from aRhaetian-agecavefill atDurdham Down,Clifton,Bristol.[2]
| Asylosaurus Temporal range:Late Triassic,
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| Life restoration | |
Scientific classification
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Genus: | †Asylosaurus Galton,2007 |
| Species: | †A. yalensis
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| Binomial name | |
| †Asylosaurus yalensis Galton, 2007
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Asylosaurusisbased onYPM2195, a partial skeleton of the torso region, including backvertebrae,ribs,gastralia,ashoulder girdle,humeri,a partial forearm, and a hand; additional bones from the neck, tail, pelvis, arm and leg that may represent the same individual were also referred toAsylosaurus.It differs fromThecodontosaurusandPantydraco,contemporaneous basal sauropodomorphs of similar builds, in the structure of its humerus (upper arm). It may have had a separateecological nichefrom these other related animals based on howomnivorousorherbivorousit was.[2]According toGregory S. Paul,it was 2 metres (6 ft 7 in) long and its weight was about 250 kilograms (550 lb).[3]
References
edit- ^abRiley H and Stutchbury S (1836a) "A description of various remains of three distinct saurian animals discovered in the autumn of 1834, in theMagnesian Conglomerateon Durdham Down, near Bristol ".Geological Society of London, Proceedings,2 (45): 397-399.
- ^abGalton, Peter(2007). "Notes on the remains of archosaurian reptiles, mostly basal sauropodomorph dinosaurs, from the 1834 fissure fill (Rhaetian, Upper Triassic) at Clifton in Bristol, southwest England".Revue de Paléobiologie.26(2): 505–591.
- ^Paul, G.S., 2010,The Princeton Field Guide to Dinosaurs,Princeton University Press p. 163
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