In the scientific name limulus polyphemus, which classification group is limulus

This is a Horseshoe crab has compound eyes that can see sideways and is part of the Limulus genus. Limulus is a lantin term that means that slanting,unusual, or cooked

The classification group of Limulus would be Genus.
Here's a list
Domain: Eukarya
Kingdom: Animalia
Phylum:Arthropoda
Class: Merostomata
Order: Xiphosurida
Family: Limulidae
Genus: Limulus
Species: Polyphemus

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor: