Strain $BS6^T$, a Gram-positive non-motile bacterium, was isolated from soil in South Korea and characterized to determine its taxonomic position. Phylogenetic analyses based on the 16S rRNA gene sequence revealed that strain $BS6^T$ belonged to the family Propionibacteriaceae in the class Actinobacteria. Strain $BS6^T$ showed the highest 16S rRNA gene sequence similarity with Microlunatus soli CC-$012602^T$ (98.6%) and high sequence similarities with Microlunatus species (94.5-98.6%). Chemotaxonomic data revealed that the predominant fatty acids were anteiso-$C_{17:0}$, anteiso-$C_{15:0}$, summed feature 8 ($C_{18:1};{omega}7c/{omega}6c$), and iso-$C_{16:0}$. The cell wall peptidoglycan contained $_{LL}$-diaminopimelic acid, and the major polar lipids were diphosphatidylglycerol, and phosphatidylglycerol. Based on these data, $BS6^T$ (=KCTC $19858^T$ =JCM $17661^T$ =CCARM $9244^T$ =KEMC $9004-079^T$) should be classified as a type strain of a novel species, for which the name Microlunatus terrae sp. nov. is proposed.