Genus: Eustreptospondylus WALKER, 1964
Etymology: Greek eu, “good, well”, Greek, streptos, “turned, curved”, and Greek, spondylus, “vertebra”, Well curved vertebrae.

Species: oxoniensis WALKER, 1964
Etymology: In reference to the Oxford Clay.
= Magnosaurus oxoniensis (WALKER, 1964) RAUHUT, 2003

Holotype: OUM J13558

Locality: Summertown Brick Pit, near Oxford, Oxfordshire County, England, Southern United Kingdom

Horizon: Middle Oxford Clay.

Biostratigraphy: Athelta Zone.

Age: Late Callovian Stage, Upper Dogger Epoch, Late Middle Jurassic.

Material: Both premaxillae, right and part of the left maxilla, teeth, anterior part of the left and posterior part of the right dentale, fragment of the left jugal, left quadrate, basioccipitale, vertebral column from the second cervical to the third sacral, 27 caudal vertebrae, fragments of ribs and haemapophyses, right scapula, left humerus, distal half of metacarpal, 1 phalanx of the manus, right ilium, right ischium, left pubis, and proximal fragment of the right one, femora, right tibia, right fibula, right astragalus and calcaneum, the 3 middle metatarsals of the right and metatarsal II of the left foot, 6 phalanges and 1 claw of the pes.

(NOPCSA, 1905, 1906)