They were surprised at the recovery of a nearly complete skeleton of a hominin ( the name of the tribe ( like a biological familly ) to which humans also belong ) . They called it LB1 because it was unearthed inside the Liang Bua Cave . They were not expecting to find a new species , and were surprised at the recovery of a nearly complete skeleton of a hominin they dubbed LB1 because it was unearthed inside the Liang Bua Cave .