Megalaspides is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the later part of the Arenig stage...

Lisogorites Liushuicephalus Lonchobasilicus Lycophron Megalaspidella Megalaspides Megasaphus Megatemnoura Megistaspidella Megistaspis Merlinia Metaptychopyge...

Isoteloides Lachnostoma Lannacus Lapidaria Liomegalaspides Megalaspidella Megalaspides Mendolaspis Merlinia Microparia Mioptychopyge Myttonia Ningkianolithus...

Meadowtownella Mecophyrs Megadundabergia Megagnostus Megagraulos Megalaspidella Megalaspides (=Lannacus) Megalisania Megalopsis Megapalaeolenus Megapharanaspis Megaproetus...

unidentified comparable form †Martinia †Megalaspidella – tentative report †Megalaspides †Megistaspis †Meristella †Meristina †Metacoceras †Metaplasia †Michelinoceras...

or unidentified comparable form †Megalaspidella – tentative report †Megalaspides †Megastrophia †Megastrophia iddingsi †Megastrophia transitans †Megistaspis...