Acacus Sandstone

{{Infobox rockunit

| name = Acacus Sandstone

| image =

| caption =

| type = Formation

| age = Llandovery
~{{fossil range|443|423}}

| period = Llandovery

| prilithology = Sandstone

| otherlithology = Shale

| namedfor =

| namedby =

| region = Ghat District

| country = {{flag|Libya}}

| coordinates = {{coord|25.0|N|10.2|E|display=inline,title}}

| paleocoordinates = {{coord|77.5|S|116.9|E|display=inline}}

| unitof =

| subunits =

| underlies =

| overlies =

| thickness =

| extent = Libyan Desert

| area =

| map = {{Location map+ | Libya

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Libya

| lat_deg = 25.0

| lon_deg = 10.2

| mark = SpringGreen pog.svg

| marksize = 12

}}

}}

| map_caption =

}}

The Acacus Sandstone is a geologic formation in the Ghat District, southwestern Libya. The unit preserves fossils dating back to the Llandovery epoch of the early Silurian period.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Acacus%20Sandstone&group_formation_member=Acacus%20Sandstone Acacus Sandstone] at Fossilworks.org