 It is known from two specimens, PIMUZ A/III 1467 (the holotype, consisting of a complete articulated tail, legs, and pelvic region) and PIMUZ A/III 722 (an isolated right tarsus).It is noticeably characterized by its gracile limb elements (including slender metatarsals) and a tibia which is 20% longer than the femur.Preserved soft tissue has also been found in the pelvic girdle of "M. obristi's" holotype.