Microrhabdulus Classification: Mesozoic-> Nannoliths inc sedis-> Microrhabdulaceae-> Microrhabdulus Sister taxa: Lithraphidites, Microrhabdulus, Pseudomicula, Singanoa, Distinguishing features: Rod-shaped nannoliths with (sub)circular cross-section and complex construction from systematically arranged laths, commonly creating a "chequered" LM image.
