Question: Gabriel Gustafson was in charge of the excavation of what well preserved Viking ship?

<P0-S0> Gabriel Adolf Gustafson (8August 185316April 1915) was a Swedish-Norwegian archaeologist. <P0-S1>  He was responsible for the excavation and conservation of the Oseberg Ship ("Osebergfunnet") . <SEP> <P1-S0> The Oseberg ship (Norwegian: "Osebergskipet") is a well-preserved Viking ship discovered in a large burial mound at the Oseberg farm near Tønsberg in Vestfold county, Norway. <P1-S1>  This ship is commonly acknowledged to be among the finer artifacts to have survived from the Viking Era. <P1-S2>  The ship and some of its contents are displayed at the Viking Ship Museum at Bygdøy on the western side of Oslo, Norway. <SEP> <P2-S0>  The average height is from seven to ten feet. <P2-S1>  On the south-west the outer wall or enceinte is entered by a rude gateway of a single pointed arch about eight feet high and five feet broad. <P2-S2>  He detached 200 men to take possession, being part of a force then raised to protect the town from the enterprizes of Bajirav's garrisons then in the neighbourhood. <P2-S3>  The assailants could either come up the spur towards the north entrance or they might attempt the spurs on the other side of the eastern ravine and attack the southern gateway. <P2-S4>  This citadel was connected with the main wall by a cross wall running across the whole breadth of the fort from east to west. <P2-S5>  Next to it on the south is a small pond evenly cut and lined with mortar used for storing water. <P2-S6>  The fort garrison consisted of 200 Ramoshis, Mahars, and other hereditary Gadkaris besides sepoys. <P2-S7>  The walling on the south side, from the edge of the cliff to some hundred yards east of the southern gate, is not more than a couple of feet in thickness and consists of all-fitting stones unmortared. <P2-S8>  It leads out to the path down to Girvi, a village in the plains below and it probably formed the communication with Phaltan. <P2-S9>  The path up the hill side, which is steep but with grass and soil left in Man y places, is almost destroyed. <P2-S10>  It would appear that attacks were dreaded chiefly from the plain below. <P2-S11>  [Elphinstone in Pendhari and Maratha War Papers, 245.] <P2-S12>  The gate lies about 150 yards east of the edge of the plateau, which there terminates in an almost unbroken vertical precipice of several hundred feet in height and receding in a north-easterly direction. <P2-S13>  The entrance to it lies some thirty feet above that to the lower citadel, and is cut in the rock about eight feet wide. <P2-S14>  The walls of this upper citadel are still in tolerable preservation. <SEP> <P3-S0> Microleter is an extinct genus of parareptile which existed in Oklahoma during the Early Permian period. <P3-S1>  It was first named by paleontologists Linda A. Tsuji, Johannes Muller, and Robert R. Reisz in 2010. <P3-S2>  The type species is "Microleter mckinzieorum". <P3-S3>  A very well preserved skull and lower jaw is the only known specimen. <P3-S4>  It was found from the Early Permian (early Kungurian stage) fissure-fill deposits near Richards Spur in Comanche County, often referred to as the Fort Sill locality. <P3-S5>  The Fort Sill locality has yielded many other well preserved tetrapod fossils, including those of other parareptiles such as "Bolosaurus", "Colobomycter", and "Delorhynchus".