 The sediment covering the footprints was compressed to form rock.The footprints were first discovered in the 1960s by station manager in the nearby Seymour Quarry.Palaeontologists from the Queensland Museum, including Mary Wade and Tony Thulborn and the University of Queensland excavated Lark Quarry during 1976–77 (the quarry was named after Malcolm Lark, a volunteer who removed a lot of the overlying rock.)