The History of Earth rules out microbial mat fossils being part of it.
'' ` Brothers of -LRB- Our Lady of -RRB- Mercy may refer to the following Roman Catholic organizations  :. Brothers Hospitallers of Saint John of God , a hospitaller order. Brothers Hospitallers of Saint John of God. Brothers Hospitallers of Saint John of God. two Marian  :. Brothers of Mercy of Our Lady of Perpetual Help , a religious institute. Brothers of Mercy of Our Lady of Perpetual Help. Brothers of Mercy of Our Lady of Perpetual Help. Brothers of Our Lady , Mother of Mercy of Tilburg , a Dutch lay religious congregation