Contradiction with Mark 16:1
Mark 16:1 states that Mary Magdalene and Mary the mother of James bought spices after the Sabbath, which suggests they had not been present at the tomb when Jesus was laid there, whereas Mark 15:47 states they were observing where He was laid.
Mark 16:1: And when the sabbath was past, Mary Magdalene, and Mary the [mother] of James, and Salome, had bought sweet spices, that they might come and anoint him.